Rank2 sem1

Question 1

1. Peripheral ossifying fibroma aka ossifying fibrous epulis

Answer 1

epulis = identical to fibrous epulis, but radiographically shows specs of radiopacity
a. Tx: excision

Question 2

2. Neurofibroma

Answer 2

= benign PNS sheath tumor - 90% of time solitary other 10% neurofibromatosis.

neurofibromatosis = neurofibromas + small cafe au lait spots

McCune-Albright syndrome = polyostotic fibrous dysplasia + large cafe au lait spots

a. Tx: excision of solitary lesions

Question 3

3. Neurofibromatosis

Answer 3

= genetic condition multiple neurofibromas + small café au lait spots on skin only (not to be confused with mccune-albright which has large café-au-lait and is form of polyostotic fibrous dysplasia)
a. Tx: no treatment

Question 4

4. Peutz-jegher syndrome

Answer 4

= autosomal dominant; melanotic macules + GIT polyps

a. Tx: no treatment

Question 5

5. McCune-Albright syndrome

Answer 5

= embryotic mutation causing 1) polyostotic fibrous dysplasia 2) large café-au-lait spot 3) hyperfunctioning endocrine (e.g. hyperparathyroidism)
a. Tx: no treatment

Question 6

6. Drug-induced pigmented lesions

Answer 6

= increased melanin production by melanocytes

a. Tx: do nothing, but can excise for aesthetic reasons

Question 7

7. Smoking associated melanosis

Answer 7

= up-regulated melanin production by melanocytes

a. Tx: do nothing, but can excise for aesthetic reasons

Question 8

8. Lichenoid stomatitis

Answer 8

= Lichenoid Stomatitis – clinically identical to lichen planus (BUT NOT ACTUAL LICHEN PLANUS); caused by medication
a. Tx: stop taking that medication

Question 9

9. Necrotizing sialometaplasia (ulcerative)

Answer 9

= “trauma” induced vasculitis to minor salivary glands causing necrosis of less resilient acini cells and metaplasia of more resilient duct cells

a. The trauma could be: smoking, LA injection/surgery, radiation, alcohol consumption
b. True to its name:
i. Necrotizing  necrosis of less resilient acini
ii. Sialo-  salivary related i.e. acini and duct cells
iii. Metaplasia  metaplasia, instead of necrosis, of more resilient duct cells
c. Tx: biopsy to rule out SSC, syphilis, ANUG; will heal after biopsy