ch 10 epithelial pathology Flashcards
5 papillomas
Squamous papilloma Verruca vulgaris Condyloma accuminatum Verruciform Xanthoma Focal Epithelial hyperplasia
benign proliferation of stratified squamous epithelium thought to be virally induced (HPV), but not as infective
Squamous papilloma
Squamous papilloma character
soft painless usually pedunculated exophytic nodule with numerous fingerlike surface projections giving a cauliflower or wartlike look
Squamous papilloma treatment
Surgery. May remain same if untre
This is a benign, virus induced (HPV), focal hyperplasia of stratified squamous epithelium
Verruca Vulgaris (common wart)
Is verruca vulgaris contagious
Yes, can spread around person by autoinoculation
Age Verruca vulgaris common in, and where is it rarely found
children, rare in mouth
Verruca Vulgaris treatment
Liquid nitrogen
Cryotherapy
Salicylic or lactic acid (topical keratinolytic agents)
If untreated, how long will it take for Verruca Vulgaris to resolve
2 yrs
Extreme accumulation of compact keratin resulting in hard surface projection several millimeters in height found in Verruca Vulgaris
Cutaneous horn/Keratin horn
Virus induced (HPV) proliferation of stratified squamous epithelium of genitalia, perianal region, mouth, larynx
condyloma accuminatum (Venereal wart)
Condyloma acuminatum is considered what type of disease
STD
Condyloma acuminatum age normally diagnosed
Teenagers/young adults
Condyloma acuminatum occur orally where
labial mucosa, soft palate, lingual frenum
Histologic indication of Condyloma acuminatum
acanthotic stratified squamous epithelium w/ cover having pynknotic nuclei surrounded by clear zone = KOILOCYTES
Which 2 HPV are associated with Cancer
HPV 16, HPV 18. Present in urogenital condyloma acuminatum
Hyperplastic condition of epithelium of mouth, skin, and genitalia with a characteristic accumulation of lipid-laden histiocytes beneath the epithelium
Verruciform Xanthoma
Is Verruciform Xanthoma an HPV papilloma
no
Gender, Age, race for Verruciform Xanthoma
Females
40-70
white
What is the histology looking for when differentiating for a Verruciform Xanthoma
lipid laden histiocytes under the epithelium
HPV 13 and HPV 32 induced localized proliferation of oral squamous epithelium
Focal Epithelial Hyperplasia
Age Focal Epithelial Hyperplasia found
Childhood
Clinical appearance of Focal Epithelial Hyperplasia
multiple flat or rounded papules which are clustered with normal color (not white)
What is the hallmark histo for Focal Epithelial Hyperplasia
acanthosis
What is acanthosis (
diffuse epidermal hyperplasia, increases thickness of stratum spinosum (and possibly bm?)
Treatment for Focal Epithelial Hyperplasia
conservative surgical for diagnosis or esthetics, but will regress spontaneously
Common skin condition of elderly representing axquired benign proliferation of epidermal basal cells, associated with chronic sun exposure.
Seborrheic Keratosis
Clinical appearance of Seborrheic Keratosis
Brown plaque that grows up and appears to be stuck on skin
What is sebhorrheic keratosis identical to when it is a small macule (early stages)
actinic lentigenes
Form of Sebhorrheic keratosis in African Americans
Dermatosis papulosa nigra
Sudden appearance of numerous seborrheic keratoses with pruritis that is associated with internal malignancy
Laser-Trelat sign
Histo feature of Seborrheic Keratosis
deep keratin filled invaginations that look cystic = horn cyst/pseudo-horn cysts
common small hyperpigmented macule of skin that represents a region of increased melanin production
Ephelis (Freckle)
What is the predilection for Ephelis
Blond and red heads
benign brown macule that results from chronic UV light damge to skin. Not seen in mouth, but common on face
Actinic Lentigo
Layman’s term for Actinic Lentigo
Age spots/liver spots
Demographics for Actinic Lentigo
Older whites >70
Does Actinic Lentigo undergo malignant transformation
no
diffuse hyperpigmentation of the facial skin in pregnant women
Melasma
flat brown mucosal discoloration produced by focal increase in melanin deposition and possibly concomitant increase in number of melanocytes
Oral Melanotic Macule
Is the oral melanotic macule related to the sun
no
Demographics for Melanotic macule
2:1 Females, can be on vermillion border
Causes/syndromes/demographics associated w/ melanin pigmentation
Racial Peutz-jaghers
Addison’s disease Neurofibromatosis Chronic trauma Smoker’s Melanosis
What drugs can cause melanin pigmentation
Chloroquine/quinine derivatives Phenolphthalein
Estrogen
AIDS medications