PATH - ORAL Section 2 Exam
Terms
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copy deck
- Reactive lesion, or 'true' neoplasia? Overgrowth is in response to irritation
- Reactive lesion
- Reactive lesion, or 'true' neoplasia? Associated with a stimulus
- Reactive lesion
- Reactive lesion, or 'true' neoplasia? Usually inflammation a consistent finding
- Reactive lesion
- Reactive lesion, or 'true' neoplasia? Growth continues after stimulus is removed/no stimulus required
- 'true' neoplasia
- Reactive lesion, or 'true' neoplasia? No regression with normal therapy
- 'true' neoplasia
- Reactive lesion, or 'true' neoplasia? Unrestricted new growth
- 'true' neoplasia
- What is the most common 'tumor'/lesion in the oral cavity?
- Irritation fibroma
- Where is the most common location to find an irritation fibroma?
- Buccal mucosa, at the occlusal plane
- What age group and gender is most often affected by irritation fibromas?
- 40-60 year old females
- What two colors are irritation fibromas (usually)?
- 1 Pink (same shade as mucosa) 2 White from hyperkeratosis
- Name 3 histological findings in irritation fibromas.
- 1 Dense CT 2 Inflammatory cells 3 Stratified squamous epithelium
- What is the term used for an irritation fibroma caused by a denture?
- Epulis Fissuratum
- What characterizes Epulis Fissuratum?
- Long folds of dense CT
- Name 3 common causes for papillary hyperplasia.
- 1 Ill-fitting dentures 2 Dentures worn 24 hours/day 3 Poor denture hygiene
- What clinical feature is pathognomonic for Papillary Hyperplasia?
- Raspberry, bubbly, papillary look, usually on hard palate
- What microorganism is often to blame for Papillary Hyperplasia?
- Candida
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Usually on gingiva, but occur anywhere
- Pyogenic granuloma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Bright red color
- Pyogenic granuloma OR ulcerated peripheral fibroma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Bleeds easily
- Pyogenic granuloma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Painless
- Pyogenic granuloma and peripheral giant cell granuloma for sure
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Caused by irritation
- All three
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Develops rapidly
- Pyogenic granuloma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? More common in children and young adults
- Pyogenic granuloma and peripheral fibroma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Found in pregnant women
- Pyogenic granuloma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Female predilection
- All three
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Histologically has endothelial lined vascular spaces
- Pyogenic granuloma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Most common of the three
- Pyogenic granuloma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Bluish-purple in color
- Peripheral Giant Cell Granuloma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Pink color
- peripheral fibroma OR Peripheral Giant Cell Granuloma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Affects individuals around age 30
- Peripheral Giant Cell Granuloma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Can only occur on the gingiva
- Peripheral Giant Cell Granuloma or Peripheral fibroma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Histologically has CT stroma, mesenchymal cells, and multinucleated giant cells
- Peripheral Giant Cell Granuloma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Results from pyogenic granuloma developing over time
- Peripheral fibroma
- Pyogenic granuloma, peripheral giant cell granuloma, or peripheral fibroma (or more than one)? Histologically has dense CT with mineralization (calcified or ossified)
- Peripheral (ossifying) fibroma
- What term is used for red vascular tissue growing out of recent extraction site or socket?
- Epulis Granulomatosa
- Name the most common oral area to have a lipoma.
- Buccal mucosa
- What color is a lipoma?
- Yellowish
- What kind of cells are subject to neurolemoma?
- Schwann cells (it's also called a schwannoma)
- Are neurolemomas fast or slow-growing?
- Slow-growing
- Name the most common oral area to have a neurolemoma.
- Tongue
- What soft tissue lesion is associated with Antoni A and B tissue types?
- Neurolemoma (Schwannoma)
- What soft tissue lesion is associated with Verocay bodies?
- Neurolemoma (Schwannoma)
- Name the most common peripheral nerve neoplasm, which is rare but not uncommon.
- Neurofibroma
- What soft tissue lesion is associated with spindle cells, and Mast cells intermingled with neurites?
- Neurofibroma
- Name the hereditary/systemic form of neurofibromas.
- Von Recklinghausen's Disease of the Skin
- Name two clinical features of Von Recklinghausen's Disease of the Skin.
- 1 Multiple neurofibromas 2 Café au lait spots
- What 'neoplasm' occurs when a damaged nerve attempts to repair itself?
- Traumatic neuroma
- Is a Traumatic neuroma painless or painful?
- Painful
- What lesion has the following histology: Neurofibrils and Schwann cells in CT?
- Traumatic neuroma
- What is the most common tumor of infancy?
- Hemangioma
- What causes a hemangioma?
- Proliferation of blood vessels
- What color is a hemangioma?
- Deep blue (this helps diagnose)
- If a hemangioma is present as a large, flat lesion of the skin, what term is used?
- Birthmark
- If a hemangioma is present as a large, unilateral lesion on the face following the division of the trigeminal nerve, what term is used?
- Port-wine stain
- What type of biopsy must be done on a hemangioma: Incisional or excisional?
- Excisional, because it bleeds profusely with incisional
- What is "diascopy"?
- Blanching with pressure
- A hemangioma (does/does not) blanch with pressure.
- DOES
- If a hemangioma is present due to small capillary proliferation, what disease is this?
- Hereditary Hemorrhagic Telangiectasia (Osler-Weber-Rendu)
- What disease features Port-wine stian, and maybe convulsive disorders and mental retardation due to calcifications in the brain?
- Sturge-Weber Syndrome
- What is more common, hemangioma or lymphangioma?
- Hemangioma
- How can you differentiate a lymphangioma from a hemangioma?
- Lymphangiomas are pink, or colorless, not red.
- If a lymphangioma is present in the tongue, what syndrome could occur secondarily?
- Macroglossia
- Name the most common oral area to have a granular cell tumor.
- Tongue
- What lesion has the following histology: Large, granular cells with eosinophils, keratin production, and pseudoepitheliomatous hyperplasia?
- Granular cell tumor
- What soft tissue lesion may be confused with carcinoma?
- Granular cell tumor
- What disease features fibroma-looking lesion at birth?
- Congenital Granular Cell Epulis
- Where is the most common location to find a Congenital Granular Cell Epulis?
- Maxillary anterior gingiva
- T/F: Congenital Granular Cell Epulis most commonly affects males.
- False; the predilection is 90% female, suggesting a hormonal link
- What disease features rapidly-growing dark, pigmented lesion at birth?
- Melanotic Neuroectodermal Tumor of infancy
- What disease is associated with high levels of vanilmadelic acid in the urine?
- Melanotic Neuroectodermal Tumor of infancy
- What lesion has the following histology: Mass of cells arranged in a pattern of alveolus-like spaces, lined by cuboidal cells, maybe containing melanin?
- Melanotic Neuroectodermal Tumor of infancy
- What is another name for physiologic (racial) pigmentation?
- Melanoplakia
- Name the most common location for physiologic (racial) pigmentation/melanoplakia.
- Attached gingiva
- What causes physiologic (racial) pigmentation/melanoplakia?
- Increased ACTIVITY (not number) of melanocytes
- Name two risk factors (besides smoking) for Smoker's Melanosis.
- 1 Female 2 Females on the Pill
- Name the three most common areas to see Smoker's Melanosis.
- 1 Mandibular anterior (gingiva) 2 Buccal mucosa 3 Palate
- Is Smoker's Melanosis premalignant?
- No, not alone
- Does Smoker's Melanosis go away after quitting smoking?
- Yes, probably
- T/F: Oral Melanotic Macules are due to sun-exposure.
- False, freckles are
- What disease histologically features an increase in melanin granules, which is confined to the basal cell layer?
- Oral melanotic macule
- What is the most common of all human 'tumors'?
- Pigmented Cellular Nevus/ Acquired melanocytic nevus/Mole
- Name 2 synonyms for a mole.
- 1 Pigmented Cellular Nevus 2 Acquired melanocytic nevus
- What's the difference between a mole and a freckle (ephelis)?
- A mole does NOT depend on sun exposure; freckles do.
- What do nevus cells look like (4)?
- 1 Large 2 Oval 3 Epithelioid 4 Arranged in clumps
- What type of mole do all moles start out as?
- Junctional nevus
- What variant of mole is the second most common intraoral nevus?
- Blue
- Malignant melanoma is the (#) most common skin cancer. ____% of skin melanomas occur in the head/neck area. (Chronic/acute) sun damage is more important when it comes to malignant melanoma. The lifetime risk for a __(ethnicity)__ to get malignant melanom
- 3rd most common. 25% in head and neck. Acute is worse. Caucasians 1:100 will get them.
- What is the most common type of Malignant melanoma?
- Superficial spreading melanoma
- What type of Malignant melanoma is multicolored and flat?
- Superficial spreading melanoma
- 1/3 of this type of Malignant melanoma are in the head and neck area.
- Nodular melanoma
- What type of Malignant melanoma is elevated, and sometimes has no pigmentation?
- Nodular melanoma
- What type of Malignant melanoma is melanoma in situ?
- Lentigo maligna melanoma
- What is the most common type of oral Malignant melanoma?
- Acral lentiginous melanoma
- Name the two most common sites for oral Malignant melanoma.
- 1 Maxillary anterior mucosa 2 Hard palate
- Most oral Malignant melanomas are (primary/metastatic) and have (good/bad) prognosis.
- Metastatic, bad
- How does Addison's disease manifest in the skin/mucous membranes?
- Bronzing
- What are two clinical features of Peutz-Jeghers Syndrome?
- 1 Oral freckles (melanotic macules) 2 Intestinal polyposis
- What are the three structural parts of a cyst?
- 1 Central cavity (containing fluid, etc) 2 Lining (usually strat squa) 3 CT Capsule
- How are cysts usually discovered?
- Routine exam/xrays
- Name the cyst characterized by a non-vital tooth, inflammation, radiolucent, derived from rest of Malassez, either asympomatic or acute pain.
- Dental Granuloma
- Name the cyst characterized by a non-vital tooth, cholesterol clefts, radiolucent, either asympomatic or acute pain.
- Radicular/Periradicular/Periapical Cyst
- Name the cyst that develops from fragments of an apical cyst after removal of a tooth.
- Residual cyst
- Name the cyst that is associated with the crown of a normal/supernumerary impacted tooth.
- Dentigerous cyst
- What is the origin of a dentigerous cyst?
- Reduced enamel epithelium, after the crown has formed
- Name the 2 most common sites for a dentigerous cyst.
- 1 3rd molars 2 Maxillary cuspids
- Dentigerous cysts usually occur from age ____ to ____, and is lined by ______ _________ epithelium.
- 10-30, stratified squamous epi
- Name 3 possible progressions of a dentigerous cyst.
- 1 Ameloblastoma 2 Squamous cell carcinoma 3 Mucoepidermoid carcinoma (salivary gland tumor)
- If a radiolucency is less than 2.5 mm, it is probably not a dentigerous cyst, but is probably⬦
- Perifollicular fibrosis
- Can you see an eruption cyst on an xray?
- NO
- Name the cyst that is a soft-tissue counterpart of a dentigerous cyst.
- Eruption cyst
- Name the cyst that develops in place of a tooth (no history of extraction or existing tooth).
- Primordial cyst
- What is the origin of a primordial cyst?
- Remnants/degeneration of the enamel organ
- Where is the most common location to find a primordial cyst?
- 3rd molar area
- T/F: Primordial cysts can be multilocular.
- TRUE
- Name the cyst that shows keratinization.
- Odontogenic keratocyst
- What is the origin of an Odontogenic keratocyst?
- Dental lamina/cell rests
- Odontogenic keratocysts are (rare/common) make up ___-____% of all odontogenic cysts. OKC affects ____-____ year olds. They are lined by (thin/thick) epithelium.
- Common, 3-11% of all odontogenic cysts, 10-40 year olds. Thin
- What is the most common location to find an Odontogenic keratocyst?
- Mandibular molar area
- T/F: Odontogenic keratocysts can be aggressive.
- True, can cause tooth movement and resorption
- Name the syndrome which features multiple Odontogenic keratocysts.
- Jaw cyst-basal cell nevus-Bifid rib syndrome
- T/F: Odontogenic keratocysts can be multilocular.
- TRUE
- On an xray, name two things that Odontogenic keratocysts may resemble (and cannot be differentiated from).
- 1 Dentigerous cyst 2 Lateral periodontal cyst
- Name a unique histologic feature of Odontogenic keratocysts.
- Satellite cysts
- T/F: Recurrence rate is high for Odontogenic keratocysts.
- True, due to satellite cysts and wavy epi lining
- Name a variant of Odontogenic keratocysts. Is its recurrence rate higher or lower than Odontogenic keratocysts?
- Orthokeratinized odontogenic cyst. Recurrence is much lower (2% instead of 30%)
- T/F: Gingival cyst of the newborn is rare.
- False, it is found in 50% of all newborns!
- What is the origin of Gingival cyst of the newborn and adult?
- Remnants of the dental lamina
- T/F: Gingival cyst of the adult is rare.
- TRUE
- Where is the most common area to find a Gingival cyst of the adult?
- Mandibular bicuspid/anterior area
- Name the cyst that is the bony counterpart to a gingival cyst of the adult.
- Lateral periodontal cyst
- T/F: Lateral periodontal cysts can be multilocular.
- True, it would be called a Botryoid odontogenic cyst
- Where is the most common area to find a Lateral periodontal cyst?
- Mandibular premolar/cuspid area
- Name the multilocular variant of a Lateral periodontal cyst.
- Botryoid odontogenic cyst (grape-like cluster)
- T/F: Recurrence rate is high for Lateral periodontal cysts.
- False, it is low
- Name the cyst that is more like a neoplasm than a cyst.
- Calcifying Odontogenic Cyst (Gorlin cyst)
- Where is the most common area to find a Calcifying Odontogenic Cyst (Gorlin cyst)?
- Trick question - it's found equally in maxilla and mandible, but tends to be in the anterior area
- Name a unique histologic feature of a Calcifying Odontogenic Cyst (Gorlin cyst).
- Ghost cells, usually with calcifications (diffuse or clumpy)
- Name the cyst that has glandular differentiation.
- Glandular Odontogenic Cyst
- Where is the most common area to find a Glandular Odontogenic Cyst?
- Mandibular anteriors
- What is a (better) synonym for a paradental cyst?
- Buccal bifurcation cyst
- Name the cyst that usually occurs on mandibular molars that have a history of pericoronitis.
- Paradental/Buccal bifurcation cyst
- What is the cause of Paradental/Buccal bifurcation cysts?
- Infection stimulates Inflammation, which stimulates rests of Malassez to make enamel
- What is the age predilection for Paradental/Buccal bifurcation cysts?
- 20-30 years old
- Name the most common site to find a Paradental/Buccal bifurcation cyst.
- Mandibular second/third molars
- Name the cyst that is small, white, and found on the palate of newborns. Name 2 synonyms.
- Palatal cyst of the newborn. 1 Epstein Pearls 2 Bohn's Nodules
- Name the cyst that is caused by ectoderm entrapped in median palatal fusion line and/or epithelial remnants of developing palatal salivary glands.
- Palatal cyst of the newborn/ Epstein Pearls/Bohn's Nodules
- What is one differential diagnosis for Palatal cyst of the newborn?
- Gingival cyst of the newborn
- Name the rare soft tissue cyst affecting the lower portion of the nasolacrimal duct.
- Nasolabial or Nasoalveolar cysts
- Nasolabial or Nasoalveolar cysts affect more (males/females).
- Females
- Name the characteristic histological feature of Nasolabial or Nasoalveolar cyst.
- Psuedostratified columnar epithelium
- Name the cyst that occurs between the roots of the maxillary lateral and canines.
- Globulomaxillary cyst
- What shape is a Globulomaxillary cyst, usually?
- Pear-shaped
- Name 3 differential diagnoses for Globulomaxillary cysts.
- 1 Periapical cysts 2 Odontogenic cysts 3 Lateral periodontal cysts
- Name the cyst that occurs in the incisive canal.
- Nasopalatine Duct/Incisive Canal cyst
- What is the soft-tissue counterpart of the Nasopalatine Duct/Incisive Canal cyst?
- Palatine papilla cyst
- Does the Nasopalatine Duct/Incisive Canal cyst affect (non/vital) teeth?
- Vital
- Nasopalatine Duct/Incisive Canal cysts usually occur in (males/females) age ____-_____.
- Males, 40-60
- What is the rule of thumb for Nasopalatine Duct/Incisive Canal cysts?
- If it is less than .6 mm, it is probably just an enlarged incisive canal
- Where is the most common location for Nasopalatine Duct/Incisive Canal cysts?
- Between the maxillary centrals
- What shape is a Nasopalatine Duct/Incisive Canal cyst, usually?
- Heart-shaped
- Name the cyst that is located posterior to the incisive papilla in the midline of the hard palate.
- Median palatal cyst
- Name the cyst that is lined by keratinized stratified squamous epithelium and is often filled with keratin.
- Epidermoid cyst
- Name the cyst that is lined by keratinized stratified squamous epithelium and is often filled with sebaceous glands, hair follicles, bone, muscle, etc.
- Dermoid cyst
- What other neoplasm does a dermoid cyst resemble?
- Teratoma
- Where is the most common location for an epi/dermoid cyst?
- Floor of the mouth
- If the patient has a bulge in the floor of the mouth/has no neck, the epi/dermoid cyst is (above/below) the mylohyoid.
- Above
- If the patient has a double chin, the epi/dermoid cyst is (above/below) the mylohyoid.
- Below
- Name the cyst that occurs on the midline, between the foramen cecum of the tongue and the suprasternal notch.
- Thyroglossal duct cysts
- What causes a thyroglossal duct cyst?
- Epithelial remnants of the thyroid migration turn into cysts
- What is the treatment for a thyroglossal duct cyst, and why?
- Remove, because it may turn malignant
- What % of thyroglossal duct cysts occur below the hyoid?
- 70%
- Name the cyst that comes from epithelium trapped in lymph nodes.
- Cervical Lymphoepithelial cyst (Branchial Cleft Cyst)
- Name the cyst that occurs in the lateral neck as an asymptomatic, slow-growing fluctuant mass.
- Cervical Lymphoepithelial cyst (Branchial Cleft Cyst)
- Name the cyst that occurs in oral lymphoid tissue, is yellow, and has no rete pegs.
- Oral lymphoepithelial cyst
- Where do 50% of oral lymphoepithelial cysts occur?
- Floor of the mouth
- Name the cyst that occurs in the maxilla, after a maxillary sinus surgery/extraction.
- Surgical Ciliated Cyst of the maxilla
- What type of lining does a Surgical Ciliated Cyst of the maxilla have?
- Respiratory epi
- What causes a surgical ciliated cyst of the maxilla?
- Epi becomes implanted/trapped at the site of surgery and starts to proliferate and cavitate
- Name the cyst that is similar to dermoid but has gastric/intestinal mucosa lining.
- Heterotropic Oral Gastrointestinal Cyst/Anterior Median Lingual Cyst/Gastric Cystic Choristoma
- What is the age and gender predilection for Heterotropic Oral Gastrointestinal Cysts?
- Infants/young children, males
- Where is the most common location for a Heterotropic Oral Gastrointestinal Cyst (2)?
- 1 Tongue 2 Floor of the mouth
- Name the pseudocyst that should be completely obvious on a radiograph.
- Simple bone cyst/Traumatic Bone cyst
- Why is a Simple bone cyst not a cyst?
- It has no epithelium, and the cavity is empty
- What is a key characteristic on the radiographs for a Simple bone cyst?
- Scalloped border
- What is the age group for Simple bone cysts?
- Young adults
- Are simple bone cysts associated with (non/vital) teeth?
- Vital
- What is the treatment for a Simple bone cyst?
- Curette to start bleeding, then it heals on its own
- Name the pseudocyst that has salivary gland tissue in it.
- Lingual Mandibular Salivary Gland Depression (Static bone cyst/Stafne bone cyst)
- Name the pseudocyst that radiographically occurs as an ovoid lucency between the mandibular canal and inferior border, with a sclerotic border.
- Lingual Mandibular Salivary Gland Depression (Static bone cyst/Stafne bone cyst)
- Name the uncommon vascular lesion of jaws/bones that resembles a "blood-soaked sponge".
- Aneurysmal Bone Cyst
- Do Aneurysmal bone cysts occur mainly in the maxilla or mandible?
- Mandible
- What is a differential diagnosis for an Aneurysmal Bone Cyst?
- OKC
- Name three other lesions that may be associated with an Aneurysmal Bone Cyst.
- 1 Fibrous dysplasia 2 Hemangioma 3 Traumatic bone cyst
- What is the most common type of oral change?
- Aphthous Minor
- Minor, Herpetiform, or Major Aphthous: Lowest recurrence rate of the three types.
- Aphthous Minor
- Minor, Herpetiform, or Major Aphthous: Childhood/Late teens - 20s
- Aphthous Minor and Major
- Minor, Herpetiform, or Major Aphthous: Affects more females than males
- All three
- Minor, Herpetiform, or Major Aphthous: Affects 20% of the general population
- Aphthous Minor
- Minor, Herpetiform, or Major Aphthous: Affects non-smokers
- Aphthous Minor and Major
- Minor, Herpetiform, or Major Aphthous: Caused by - Inherited and immunodysregulation, mucosa decrease, and antigen increase
- Aphthous Minor and Major
- What is the most common clinically significant odontogenic tumor?
- Ameloblastoma
- Common, Unicystic, or Peripheral Ameloblastoma: Average age of occurrence is 30 years old.
- Common
- Common, Unicystic, or Peripheral Ameloblastoma: Benign aggressive
- Common
- Where do 85% of Common ameloblastomas occur?
- Posterior mandible
- Common, Unicystic, or Peripheral Ameloblastoma: Multilocular radiolucency with small compartments
- Common
- How do you differentate the multilocular radiolucency of a common ameloblastoma from a cyst?
- Ameloblastoma has SMALL compartments, but cysts have BIG compartments
- What disease features nests of odontogenic epithelium with stellate reticulum inside a rim of columnar ameloblasts?
- Common Ameloblastoma
- What disease features connective tissue stroma separating epithelial nests?
- Common Ameloblastoma
- Common, Unicystic, or Peripheral Ameloblastoma:Not encapsulated
- Common
- Common, Unicystic, or Peripheral Ameloblastoma: Resection is the typical treatment
- Common
- If a Common ameloblastoma is curetted, what is the recurrence rate (____-____%)?
- 50-90%
- Name a differential diagnosis for Common ameloblastoma, and why it is similar.
- Simple bone cyst - Scalloped border
- Common, Unicystic, or Peripheral Ameloblastoma:Benign and not locally destructive
- Unicystic
- Common, Unicystic, or Peripheral Ameloblastoma:Average age of occurrence is 23 years old
- Unicystic
- Where do 90% of unicystic ameloblastomas occur?
- Posterior mandible
- Common, Unicystic, or Peripheral Ameloblastoma: Unilocular radiolucency, well-circumscribed
- Unicystic
- What disease features a cystic cavity, lined by ameloblasts, filled with stellate reticulum?
- Unicystic Ameloblastoma
- Common, Unicystic, or Peripheral Ameloblastoma: Capsulated
- Unicystic
- Name 3 differential diagnoses for Unicystic Ameloblastoma.
- 1 OKC 2 Dentigerous cysts 3 Simple bone cysts
- How do you differentate Unicystic Ameloblastoma from Dentigerous cysts?
- Unicystic Ameloblastomas are larger on radiographs
- Name 3 differential diagnoses for Peripheral Ameloblastoma.
- 1 Pyogenic granuloma 2 Peripheral Giant Cell Granuloma 3 Peripheral Fibroma
- Does peripheral Ameloblastoma look more like a well defined Common or Unicystic Ameloblastoma?
- Common
- What is the age and gender predilection for Adenomatoid odontogenic tumors?
- 10-19 years old, females
- What is the MOST common site for an Adenomatoid odontogenic tumor?
- Anterior maxilla, which is VERY unusual for an odontogenic tumor
- T/F: Adenomatoid odontogenic tumors never occur around teeth.
- False, 75% occur around unerupted teeth
- How do you differentiate Adenomatoid odontogenic tumors from Dentigerous cysts?
- Adenomatoid odontogenic tumors attach somewhere other than the CEJ, and occur in kids (not adults)
- What disease histologically features columnar cells in duct-like arrangement, and polyhedral cells arranged in loose sheets?
- Adenomatoid odontogenic tumors
- Why are Adenomatoid odontogenic tumors so easy to remove, and have rare recurrence?
- Because of their thick fibrous capsules, excision is curative
- What is the age predilection for Calcifying Epithelial Odontogenic Tumors/Pindborg tumors?
- Adults, 30-50 (a 40+ disease)
- Name the tumor that most commonly presents as a painless, slow-growing swelling.
- Calcifying Epithelial Odontogenic Tumors/Pindborg tumors
- Calcifying Epithelial Odontogenic Tumors/Pindborg tumors can be (radiolucent/opaque/mixed/more than one)?
- Pure radioluent or mixed
- If Calcifying Epithelial Odontogenic Tumors/Pindborg tumors are mixed radiolucencies, what two patterns of radioopacity are often seen?
- 1 Ground glass 2 Cotton wool
- What disease histologically features polyhedral epithelial cells, and amyloid or amyloid-like material?
- Calcifying Epithelial Odontogenic Tumors/Pindborg tumors
- Calcifying Epithelial Odontogenic Tumors/Pindborg tumors are classified as (innocuous, benign, benign aggressive, malignant).
- Benign
- Name the exceptionally rare tumor that appears to arise from neoplastic transformation of the rests of Malassez.
- Squamous odontogenic tumor
- What age range can squamous odontogenic tumor occur within?
- 8-74 years old
- Name the disease that radiographically looks like a periodontal defect, destroyig crestal bone, and occurring as a triangular lucency lateral to tooth roots.
- Squamous odontogenic tumor
- What disease histologically features nests of bland stratified squamous epithelium?
- Squamous odontogenic tumor
- What uncommon tumor has both epithelial and mesenchymal tissue that are neoplastic?
- Ameloblastic fibroma
- What age group is most often affected by ameloblastic fibroma?
- Teens, or younger
- What is the site predilection for ameloblastic fibroma?
- Posterior mandible
- If any child presents with a radiolucent lesion in the posterior mandible, what disease is it until proven otherwise?
- Ameloblastic fibroma
- What disease histologically features islands of odontogenic epithelium, and developing tooth germ, with plump fibroblasts?
- Ameloblastic fibroma
- How does ameloblastic fibroma histologically differ from ameloblastoma?
- Epithelial islands are small,and too skinny to be filled with stellate reticulum
- What is the most common type of odontogenic tumor, exceeding the prevalence of all other odontogenic tumors combined?
- Odontoma
- What disease features multiple, small structures with recognizable tooth morphology?
- Compound odontoma
- What disease features masses/globs of tissue with no anatomic resemblance to a tooth?
- Complex odontoma
- During what age range are odontomas usually detected?
- 0-20
- What is the site predilection for compound odontomas?
- Anterior maxilla
- What is the site predilection for complex odontomas?
- Posterior mandible