Oral Cavity Pathology Flashcards
1
Q
Name the most important microbiota of the mouth
A
- Anaerobic bacteria
- Peptostreptococcus
- Fusobacterium
- Prevotella
- Actinomyces
- Streptococcus viridans
- Streptococcus mutans
- Candida albicans
2
Q
- Pseudocyst of minor salivary gland origin
- Formed when salivary duct is blocked or ruptured (usually secondary to trauma such as biting lip or cheek)
- Causes secretions to dissect into the soft tissues surrounding the gland with pooling of mucus
- Typically presents as painless swelling of lower lip/buccal mucosa
- May resolve spontaneously or may have to excise (with the involved salivary gland to prevent recurrence)
A
Mucocele
3
Q
- Etiologies:
- Mumps
- Duct obstruction (sialolithiasis)
- Often S. aureus
- Dehydration increases risk
- Sjogren’s syndrome
- Firmness, pain, swelling
- MC involves either parotid or submandibular gland
A
Sialadenitis
4
Q
- Relatively uncommon and slow-growing but aggressive, propensity for perineural invasion
- Poor long-term prognosis with risk of distant metastasis, even many years later
A
Adenoid cystic carcinoma
5
Q
Parotid tumors drain into ___ first then to ___
A
- Intraparotid lymph nodes
- Upper cervical lymph nodes
6
Q
- MC due to S. pyogenes (GAS)
- Potential for RF
- Complication of acute illness
- Peritonsillar abscess
- Lemierre’s syndrome (Fusobacterium necrophorum)
A
Bacterial pharyngitis
7
Q
- Melanin pigmentation of lips and oral mucosa + hamartomatous polyps of GI tract
- Autosomal dominant; de novo cases can develop
A
Peutz-Jeghers syndrome
8
Q
- Produces a gray-blue line along the junction of the teeth and gum
A
Lead poisoning
9
Q
- Due to Rhinovirus, Adenovirus, Coronavirus, and others
- Presents as sore throat
- Erythema and edema of pharynx, +/- exudate
A
Viral pharyngitis
10
Q
- Due to failure of the 2nd branchial cleft to involute during development
- Entrapped remnant forms a cyst in the lateral neck anterior to the SCM
- Presents in late childhood to early adulthood
- Many asymptomatic but can become enlarged and inflamed; may even develop draining sinus tract to pharynx or skin
A
Branchial cleft cyst
11
Q
- Due to EBV
- Painless, white plaque-like lesion on lateral tongue
- Cannot be scraped off
- Patients typically immunosuppressed
A
Oral hairy leukoplakia
12
Q
- Not a specific diagnosis
- Clinical term used to describe a “white plaque”
- Can not be scraped off, asymptomatic
- Risk (low) of dysplasia/malignancy
- MC associated with tobacco
A
Leukoplakia
13
Q
- Usually infected during childhood (HSV1)
- Recurrent painful (and contagious) vesicular lesions of oral mucosa, gingiva, lips (herpes labialis)
- Vesicles reupture quickly leaving shallow ulcers
- Heal spontaneously in 1-2 weeks without scarring
- Virus remains latent in trigeminal ganglia
- May have prodromal symptoms of itching and burning prior to reactivation
- Triggers for reactivation: sunlight, cold, trauma, stress, or immunosuppression
A
Herpetic gingivostomatitis
14
Q
- Asians > whites > blacks
- Due to failure of palatal shelves to fuse
A
Cleft palate
15
Q
- Mildly painful, shallow, yellow ulcers surrounded by red halos
- Oral ulcers on lips, buccal mucosa, tongue, or soft palate
- Rash also involves hands, feet, and sometimes the buttocks
- Mouth and throat pain, throat pain, +/- low grade fever
- Coxsackivirus
A
Hand foot and mouth disease