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SBJ-19 Common Cutaneous Neoplasms crc questions with correct answers $14.99   Add to cart

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SBJ-19 Common Cutaneous Neoplasms crc questions with correct answers

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SBJ-19 Common Cutaneous Neoplasms crc questions with correct answers

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  • October 27, 2024
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  • 2024/2025
  • Exam (elaborations)
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BravelRadon
SBJ-19 Common Cutaneous Neoplasms
crc questions with correct answers

Where are the melanocytes? - correct answer ✔✔Basal layer of the epidermis



Most common cutaneous neoplasm? - correct answer ✔✔Seborrheic keratosis



Seborrheic keratosis: clinical appearance - correct answer ✔✔Greasy, "stuck on" verrucous papule or
plaques

May be itchy



Seborrheic keratosis: what is usually spared? - correct answer ✔✔Rarely see these on the palms and
soles.



What is acanthosis? - correct answer ✔✔Diffuse epidermal hyperplasia

Implies increased thickness of the stratum spinosum.



Seborrheic keratosis: how are these histologically characterized - correct answer ✔✔Acanthosis

Varying degrees of papillomatosis

Hyperkeratosis

PSeudo-horn cyst (tiny collections of keratin)



Seborrheic keratoses - Dermatosis papulosis nigricans - correct answer ✔✔Seen in darker skinned
people. Darkly pigmented SKs of the face.



Seborrheic keratosis: subtypes - correct answer ✔✔Stucco keratosis (lower legs of older women, often
confused with warts)

Melanoacanthoma (often confused with melanoma)

Dermatosis Papulosis Nigricans (see preceding slide)

, Seborrheic Keratoses - correct answer ✔✔



Histo features of Seborrheic Dermatosis - correct answer ✔✔Red: dermis

Blue: anastamosing rete ridges

Green: pseudocyst

Yellow: melanin



Actinic Keratosis: what is it - correct answer ✔✔Precancerous lesions made up of keratinocytes resulting
from sun exposure

0.25% to 20% will develop into SCC if left untreated.

Typical treat all of these



Actinic Keratosis: clinical appearance - correct answer ✔✔Rough, slighty scaly, pink macules. Sometimes
they are better felt (sandpaper like) than seen.

Usually small (3 mm-1 cm). most are less than 6 mm.

Scaly spots, comes and goes in sun exposed areas.



Actinic Keratosis: treatment - correct answer ✔✔...



Actinic keratoses - correct answer ✔✔Hand has a hypertrophic keratosis with a very thick scale on top



Histo features of AKs - correct answer ✔✔Red: atypical, crowded keratinocytes occupy lower portions of
the epidermis

Green: parakeratosis (nucleated keratin layer)

Blue: orthokeratosis (non-nucleated keratin layer)

Yellow: Hair follicles, which are spared

Green: elastosis in the dermis, a sign of sun damage.

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