ADAT prep doc Oral Diagnosis

The most common odontogenic cyst?

Radicular cyst

Second most common odontogenic cyst?

Dentigerous cyst

Other name of Brachial cleft cyst?

Cervical lymphoepithelial cyst

name the palatal cysts of new born?

Epstein’s pearls

Bohn’s nodule

The most common area of lateral periodontal cyst?

In the mandibular canine-premolar area

Which cyst has areas of nodular thickening in the its epithelium wall?

Lateral periodintal cyst

Dentigerous develops from…

reduced enamel Epithelium

OKC arise from …

Dental lamina

“Chinese character is the histologic feature of which condition?

Fibrous Displasia

The other name of paget’s?

Osteitis deformans

Histologic pattern of paget’s disease?

Mosaic pattern

Cotton wool appearance is seen in ……

Paget’s disease, Florid cemento-osseous dysplasia and Gardner Syndrome

Which type of glossitis is seen in Pernicious anemia?

Hunter’s glossitis

Birbeck granules are seen in …..

Langerhans cell disease (idiopathic histocytosis- nonlipid reticuloendotheliosis)

White sponge nevus?

Bilaterally and symmetrically

Does not affect skin

Familial aggregation (inherited disorder)

Leukoplakia ?

High risk sites to show dysplasia: posterior lateral tongue, floor of the mouth, vermilion of the lip

Etiology: Tobacco , alcohol abuse

Usually well demarcated but can be ill-defined as well.

When the differential diagnosis includes malignancy, incisional biopsy should be conducted.

Clinical evaluation every 6 months is recommended.

The recurrence rate of proliferative verrucous leukoplakia is 83%.( High recurrence rate)

Actinic chelitis?

Location: vermilion of the lip

Early lesion: Red atrophic areas

Chronic lesion: white

Hairy leukoplaki?

Location: lateral border of the tongue,

May be uni ir bilateral

Etiology: EBV infection in immunocompromised patients (e.g HIV), long-term use of sytemic or topical corticosteroids.

If not diagnoed cause of immunosuppression: incisional biopsy and medical evaluation

If patients diagnosed w/ HIV management is: medical evaluation and systemic anyiviral( note: it’s not anti HIV BC its EBV)

Location of erythroplaki?

Floor of the mouth, lateral border of the tongue, retromolar tissues, soft palate

The most common site of distant metastasis for SCC?

Lungs

Tumor classification based of T?

T1: tumor < 2cm

T2: tumor 2-4 cm

T3: tumor > 4 cm

T4: invades subjacent structures

Classification of Nodes (N)?

N0: no palpable node

N1: node < 3 cm

N2A: ipsilateral single node 3-6 cm

N2B: multiple ipsilateral node <\ 6cm

N2C: contralateral or bilateral nodes <\ 6cm

N3: > 6cm

……. and ….. is always stage 4(IV).

N2 and above, M1

Other name of denture stomatits?

Inflammatory pupillary hyperplasia

Type I inflamatory papillary hyperplasia is ….. induced while type II and III are caused by ….

Trauma induced

Microbial plaque accumulation

Lichen planus:

Usually bilateral

On the skin: 6 P (purple,pruritic, planar, polygonal,papules and plaque)

Etiology: T-cells destroy basal keratinocytes

Treatment for symptomatic lichen planus is …… and for severly symptomatic lichen planus is…

Topical corticosteroids (flucinonide, betamethasone or clobetasol gel)

Sever: systemic prednisolone

The most definitely pathognomonic antibody for SLE?

Anti-dsDNA (anti-double-stranded DNA)

In cicatrical pemphigoid the auto antibodies are against …..

Hemidesmosome

Pemphigus vulgaris?

Antibody against desmosomes ( desmoglein 1and3)

Suprabasilar vesicles

Tombstone

Tzank cell and acantholysis

“Chicken wire” appearance in DIF

Nikolsky sign +

Bull’s eye lesion is in ….

Eythem multiform

Erythema multiforme?

Most common trigger?

Appears….. days after trigger.

HSV

7-14

Aphthous like ulcerations are noted in ….

Crohn’s disease

Behcet syndrom

Celiac sprue

AIDS

Cylic neutropenia

Nutritional deficiencies

Ulcerative colitis

Acantholysis (T-zank cells) is seen in ……

Pemphigus vulgaris

Herpetic gingivostomatitis

Shingles is caused by …. and stop at the ….. and ….. division of trigeminal nerve is more commonly affected.

VZV

Midline

Ophtalmic

Herpangina

Age ? Location? Caused by ….

3-10 years old

Soft palat and tonsillar pillars

Coxackie virus A

Disease caused by Coxackie virus?

Herpangina, hand-foot-mouth disease

Different syphilis types feature?

Primary( chancre) : painless indurated ulcer with roller border

Secondary: painless maculopapular cutaneous rash, Snail track pattern, stomatitis is mainly seen with SECONDARY syphilis

Tertiary (Gumma): ulcerative lesion which may perforate the hard palate into the nasal cavity

Name hutchinson triad in congenital syphilis?

Corneal inflammation (interstitial keratitis), 8th nerve deafness, hutchinson teeth

Major clinical signs for behcet syndrome?

Recurrect oral and genital aphtous like -ulcers

Conjuctivitis

Arthritis

Headache and CNS symptoms

Hairy tongue is …… to circumvallate papillae.

Anterior

The most common sites for squamous papilloma?

Hard and soft palate, uvula

Skin wart which rarely occurs intraorally and its etiology is HPV2?

Verruca vulgaris

Granular cell tumor is the benign tumor of ….. and the most common location is ….

Schwann cell

Dorsum of the tongue

Inflammatory fibrous hyperplasia is ……

And inflammatory papillary hyperplasia is …..

Epulis fissuratum

Denture stomatitis

At which level of palatelet count the routing treatment should be delayed and palatelet replacement is needed for urgent dental care?

Less than 30,000/mm3

Which conditions need antibiotic prophylaxis?

Infectious endocarditis

HHT (hereditary hemorrhagic telangectasia)

Pulmunary arteriovenous malformation

Diascopy test in HHT is ….

Positive

Kaposi sarcoma caused by …..

HHV 8