Head and Neck (audio recall) Flashcards
cyst containing heterotopic thyroid tissue at the foramen cecum of tongue
thyroglossal duct cyst
what bacteria causes scarlet fever?
beta hemolytic strep
what disease is characterized by painful recurrent solitary or multiple small ulcers of oral mucosa
aphthous stomatitis aka canker sores
what lesion of the oral cavity is composed of reactive granulation tissue with acute and chronic inflammation?
pyogenic granuloma
what oral disease represents an infection by two symbiotic organisms: fusiform bacillus and spirochete
acute necrotizing ulcerative gingivitis/ Vincent Angina
what disease is a rapidly spreading cellulitis which originates in the submaxillary or sublingual space but extends locally to involve both?
Ludwig angina
Herpes labialis is caused by
HSV-1
what is the term for an asymptomatic white lesion on the surface of the oral mucus membrane?
leukoplakia
most common malignancy of oral mucosa Betel nut quid chewing
Squamous cell carcinoma
- most common tumor of enamel
- soap bubble appearance on radiograph
- looks like tooth with epithelial “nests”
ameloblastoma
- Benign polypoid capillary hemangioma
- common in 3rd trimester
Lobular capillary hemangioma
- Inversion of surface epithelium into stroma
- associated with HPV 6 and 11
- erodes bone
Inverted papilloma
- Neural crest origin
- Pseudorosettes
- S-100 protein surrounds nests
Olfactory Neuroblastoma
Circular band of lymphoid tissue at opening of oropharynx
Waldeyer Ring
- pink/white mass
- change in voice
- nosebleeds
- androgen dependent
Nasopharyngeal Angiofibroma
- Associated with EBV infection
- Tumor cells express cytokeratin
- may cause chronic serous otitis media
Nasopharyngeal Carcinoma
- Most often benign parotid tumor
- Mixture of epithelial and stromal elements
- PLAG1 rearranged
- painless, moveable, firm masses with smooth surface
- Commonly recurs after surgery
Pleomorphic Adenoma-can invade (called: carcinoma ex pleomorphic adenoma)
- 2nd most common benign parotid tumor
- glandular spaces become cystic
- lined by oncocytes
- unlikely to become malignant
Warthins tumor
- Malignant
- from ductal epithelium (usually parotid)
- slow growing
- firm, painless mass
- Squamous cells, mucous secreting cells and intermediate cells
Mucoepidermoid Carcinoma
- Malignant salivary tumor
- Invade locally and recur after resection
- Infiltrate perineural spaces–>pain
- cyst spaces filled with basophillic material
Adenoid Cystic Carcinomas
- Most common benign tumor of middle ear
- neural crest origins
- secretes catecholamines
Jugulotympanic paraganglioma
- Most common cause of conductive hearing loss
- formation of new spongy bone about stapes and oval window
- autosomal dominant
Otosclerosis
Triad:
1) vertigo
2) sensorineural hearing loss
3) tinnitus
- From dilation of cochlear duct
- improves with low salt diet and diuretics
Meniere Disease
- Most common tumor of inner ear
- From vestibular nerves
- slowly progressive vestibular and auditory symptoms
Schwannoma
Can be caused by:
1) Congenital CMV or Rubella (bilaterlal deafness)
2) Mumps (unilateral deafness)
Viral Labyrinthitis
- reactive vascular lesion in oral cavity
- small, elevated, and focally ulcerated red-purple lesion
- usually on gingiva
- highly vascualr granulation tissue with acute and chronic inflammation
Pyogenic Granuloma
- large ulcerations in mouth and facial tissue
- focal exposure of bone
- culture grows borrelia vincentii
- usually are somewhat immunocompromised
Vincent Angina-acute necrotizing ulcerative gingivitis
- complication fo chronic suppurative otitis media
- hearing loss from mass of accumulated keratin and squamous epithelium
- mass can become infected and shield bacteria from antibiotics
Cholesteatoma
