General Flashcards
(41 cards)
Disease that presents with glossitis, esophageal dysphagia, and iron deficiency anemia
Plummer-vinson syndrome
What deficiencies can cause glossitis?
B12 deficiency Iron deficiency Riboflavin (B2) Niacin (B3) Pyridoxine (B6)
What is hairy leukoplakia indicative of?
Positive infection of HIV
What is the progression for Head/Neck Squamous Cell Carcinoma?
1) Loss of chromosomal regions 3p and 9p21 = inactivation of p16
2) Loss of chromosomal region 17p = inactivation of p51
3) Alterations of chromosomal regions 4, 6, 8, 13, and 14
4) Over expression of cyclin D1 gene on chromosome 11q13
What virus causes red based lesions with blue/white centers in the mouth?
Rubeola (measles) virus
Shallow, hyperemic ulceration covered by thin exudate (NO Vesicles)
Aphthouos stomatitis (cancker sore)
Microscopic Findings: Hyperparakeratosis and acanthosis with balloon cells in the upper spinous layer
Macroscopic: Located on the lateral side of the tongue as white, confluent pathces of fluffy, hyperkeratotic thickenings
Hairy Leukoplakia
What causes Hairy Leukoplakia?
Caused by EBV due to immuno suppression such as HIV
Tumor that is closely assoc. with lymphatic tissue; cytokeratin positive; due to EBV infection
Nasopharyngeal carcinoma
What are the three patterns of nasopharyngeal carcinoma?
Keratinzing squamous cell carcinoma
Nonkeratinizing squamous cell carcinoma
Undifferentiated carcinomas that have abundant non-neoplastic, syncytial nests with lymphocytitc infiltrate
What are the differences in the radio sensitivity of nasopharyngeal carcinoma?
Keratinizing squamous cell carcinoma is the least radio-sensitive
Undifferentiated carcinoma is most radio-sensitive
Where is the most common place that nasopharyngeal carcinoma presents with metastasis?
The cervical lymph nodes
What group of people is nasopharnygeal carcinoma more common in?
Adults in China
Children in Africa
What gene treatment has seen success in the treatment of squamous cell carcinoma of the head and neck
EGFR gene
Lesions with hyperkeratosis overlying a thickened, acanthotic mucosal epithelium
Leukoplakia
Cyst that is usually assoc. with unerupted teeth (3rd wisdom tooth); generally has a thin lining of epithelial tissue and chronic inflammatory cells within the connective tissue stroma
Dentigerous cyst
What are the two subclasses of ondontogenic cytsts?
Inflammatory and developmental
Locally aggressive cyst that is lined with stratified squamous cell epithelium and a prominent basal cell layer
Odontogenic keratocyst
What should be evaluated with reoccurring odontogenic keratocysts?
Pt. should be evaluated for Nevoid basal cell carcinoma syndrome (Gorlin syndrome)
Benign tumor that arises from the odontogenic epithelium
Ameloblastoma
Benign tumor that arises from the odontogenic epithelium and ectomesenchyme
Odontoma
Benign, highly vascularized tumor found almost exclusively in adolescent males in the nasopharynx
Nasopharyngeal angiofibroma
Benign neoplasm that is associated with the presence of HPV 6 and 11. It has 3 forms (exophytic, inverted, and cylindrical); Arises from the sinonasal epithelium
Sinonasal papilloma
Uncommon, malignant neoplasm consisting of small round cells arising from neuroendocrine cells most commonly in the superior and lateral aspects of the nose
Olfactory neuroblastoma