pigmented and vascular lesions/soft tissue lesions Flashcards
whats a typical patient history who has melanoacanthoma
Rapid onset and growth Buccal mucosa most common site • Dark-brown or black pigmentation • Flat or slightly raised Predilection for black females • 3rd to 4th decades
Whats the etiology of melanoacanthoma
unknown. its considered a reactive lesion
how do you tx melanoacanthoma
• Incisional biopsy to confirm diagnosis • No further treatment is necessary • May spontaneously regress due to biopsy
what are the types of nevi
intramucosal, compound junctional
whats a intramucosal nevi
nevus found in the epithelial tissues
what is a compound nevus
found in epidermis and dermis
what is a junctional nevus
one found in-between epithelial and dermal tissues
where due blue nevi tend to occur orally
on the palate,
why are blue nevi blue
tyndall effect (physics) the cells tend to be deeper in the connective tissue and epithelial tissue above it reflect the blue light.
what are two examples of large congenital blue nevi
nevus of ito, nevus of ota
Whats pout nether syndrome
intestinal polyposis and perioral freckling
what are varix
abnormally dilated vessel with a torturous course
what is classic presentation of superficial lymphangioma
midline posterior tongue typical frogs egg vesicles
what is epulis granulomatosa
Hyperplastic growth of granulation tissue arising in an extraction socket
what should you do before biopsy of a suspected hemangioma
aspirate for lots of blood
what is common tx for congenital hemangiomas
often spontaneously resolve toward adult hood but some do require surgical intervention
what is the hallmark of storage weber syndrome
Nevus flammeus (port wine stain): along 1 or more segments of the trigeminal nerve
what can oral storage weber mimic
pyogenic granuloma
what is the ideal tx for peripheral osseous fibroma and peripheral giant cell granuloma
excise down to periosteum, then sc/rp to remove inciting irritant
what are names of benign peripheral nerve sheath tumors
schwannoma, neurofibroma, traumatic neuroma, palisaded encapsulated neuroma
which is the most common benign peripheral nerve sheath tumors
neurofibroma
where are the most common spots for neurofibroma
tongue and buccal of mandible
how common are oral schwanoma
not only 25% occur in head and neck
which nerve sheath tumor are usually painful
traumatic neuroma
where are most palisaded encapsulated neuromas found
nose and cheek 90%
what are bilateral commissural mucosal neuromas characteristic of
MEN 2B
why is a MEN2B dx important early
100% of its present with medullary thyroid carcinoma by age 30.
