Pathology

Question 1

Most common type of Basal Cell Carcinoma?

Answer 1

Nodular

Question 2

Differentiating between Ossifying fibroma and fibrous dysplasia?

Answer 2

Fibrous Dysplasia will show strong immunoreactivity for osteocalcin and GNAS mutation on PCR.

Question 3

Management of Ossifying Fibroma

Answer 3

Complete Enucleation.

Question 4

Management of Fibrous Dysplasia

Answer 4

Non-surgical.
Bisphosphonates.

Question 5

What percentage of patients over 40 have Osteoarthritis?

Answer 5

10% of men and 13% of women have symptomatic osteo arthritis of knee. 25% of patients have radiographic evidence of knee.

Question 6

ORNJ Stages

Answer 6

0= non-exposed bone
1= exposed necrotic bone or fistulae that probes to bone; no infection
2= 1+ infection
3= 2 + pathologic fracture- or extends to inferior border or sinus floor or communicates with antrum.

Question 7

Why is BRONJ now called MRONJ

Answer 7

Denosumab (Rani-L inhibitor)

Question 8

Lesion associated with impacted canine?

Answer 8

Adennomatoid Odontogenic Tumor

Question 9

Aspergillosis branching

Answer 9

ACUTE angles

Question 10

Mucormycosis Branching

Answer 10

Right or Obtuse angles. Tx: Amphotericin B

Question 11

Pemphigus vulgaris affects?

Answer 11

Desmoglein 3
-Fish net pattern

Question 12

Pemhagoid Immunofluorescence pattern?

Answer 12

Linear.
Attacks basement membrane.

Question 13

Central feature of Calcifying Odontogenic cyst

Answer 13

Ghost cells. Generally radiolucent but sometimes with calcifications within.

Question 14

Central giant cells occur predominantly….

Answer 14

In Anterior mandible of young adults.

Question 15

Most common type of osteosarcoma

Answer 15

Chondroblastic osteosarc.

Question 16

Most common type of rhabdosarcoma?

Answer 16

Embryonic

Question 17

Lesion on palate with palisaded spindle cells, painful and S100 positive

Answer 17

Schwanoma.
S100 found in melanomas, neurofibromas, and nerve sheath tumors.

Question 18

Most common types of rhabdomyosarcoma of the H&N.

Answer 18

Embryonal, then alveolar, and pleomorphic

Question 19

Most common type of osteosarcoma of the H&N

Answer 19

Chondroblastic then Osteoblastic, then Fibroblastic.

Question 20

Radiation for SCC of floor of mouth

Answer 20

Optional in N0 unless positive margin or high risk features.
Always in N1+ ds. Consists of 60-70 Gy 6-7 weeks post op or 44-55Gy if low/intermediate risk. Or higher risk 72Gy +. Radiation Sarcoma is a risk over 40Gy.

Question 21

Trigeminal neuralgia has paroxysmal or continuous pain

Answer 21

Paroxysmal

Question 22

What non-malignant jaw lesions need a resection?

Answer 22

All ameloblastomas, CEOT, Myxoma, Odontoameloblastoma.

Question 23

Tx of OKC

Answer 23

Enucleation with peripheral ostectomy and or cryotherapy.

Question 24

Aneurysmal bone cyst

Answer 24

Develops secondarily from another bone lesion. Usually Central Giant Cell.

Question 25

Giant cell lesion marker

Answer 25

CD68

Question 26

Radical neck dissection removes

Answer 26

Zones 1-5 + spinal accessory nerve, IJ + SCM.

Question 27

Modified radical neck dissection removes

Answer 27

Type 1 preserves spinal accessrry nerve Type 2 preserves spinal accessory. nerve and IJ Type 3 preserves SAN, IJV, SCM.

Question 28

Selective neck dissection remmoves

Answer 28

Just specified levels of lymph tissue. For most oropharyngeal lesions a level 2-4 SND is done.

Question 29

What salivary gland tumor is almost exclusively minor gland?

Answer 29

Polymorphous Low-grade Adenocarcinoma.

Question 30

When is the best time to remove an AVM after embolization

Answer 30

1-3 days

Question 31

Bone mets to the jaw come from

Answer 31

Breast then lung in women.

Question 32

How to treat ulcerative stomatitis?

Answer 32

Hydroxychloroquine.

Question 33

What does cavernous sinus thrombosis affect first?

Answer 33

CN 6- abducens nerve.

Question 34

Borders of retropharyngeal space infection?

Answer 34

Buccopharyngeal fascia anteriorly and prevertebral fascia posteriorly

Question 35

Treatment for chondrosarcoma?

Answer 35

Low grade= 1.5cm bony and soft tissue margins. High grade= 3cm bony and 2cm soft tissue margins with pre and post surgery chemotherapy.

Question 36

Treatment of 0.5cm pleomorphic adenoma in parotid?

Answer 36

Superficial parotidectomy.

Question 37

MEN I

Answer 37

3 Ps pituitary, parathyroid, pancreas.

Question 38

MEN IIa

Answer 38

1M, 2Ps. Medullary thyroid, pheochromocytoma, parathyroid

Question 39

MEN 2b

Answer 39

2Ms, 1P. Medullary Thyroid, Marfanoid habitus/Mucosal neuromas and pheochromocytoma.

Question 40

What are the most common malignant tumors of minor and major salivary glads?

Answer 40

Mucoepidermoid Carcinoma in the parotid Adenoid cystic carcinoma in the submandibular, sublingual, and salivary glands.

Question 41

What is the most common benign tumor of minor and major salivary glands?

Answer 41

Pleomorphic adenoma.