84 - Hidradenitis Suppurativa Flashcards
Hidradenitis suppurativa is otherwise known as
Acne inversa
Characterized by recurrent, deep-seated, painful, subcutaneous nodules, sinus tracts, and hypertrophic scarring in the intertriginous and anogenital regions
Hidradenitis suppurativa
(Men/Women) are disproportionately affected by HS
Women
Women are more likely to develop _____ lesions
Axillary
Genitofemoral
Men tend to develop _____ lesions
Perineal
Perianal
_____ involvement is associated with a significantly worse DLQI score compared to other sites
Anogenital
SCC is an infrequent complication of longstanding chronically inflamed lesions, occurring in _____% of HS cases
4.6
Males with _____ are preferentially affected with SCC
Anogenital
HS-associated SCC is often associated with high-risk human papillomavirus strains, most commonly
HPV-16
Y/N: HS-associated SCC tends to be more locally aggressive and metastasizes to lymph nodes with greater frequency
Yes
Consistent histologic finding of early HS and is thought to be the primary pathophysiologic event
Keratinous occlusion of the terminal hair follicle
Y/N: Apocrine glands are primarily involved in HS
No - only secondarily involved
Appears to be an early event in disease pathogenesis, preceding the onset of lymphocytic follicular inflammation and hyperkeratosis of the infundibulum
Sebaceous gland atrophy
Y/N: The odds of having HS are susbstantially higher among current smokers than nonsmokers
Yes
Y/N: A higher body mass index is associated with greater odds of having HS
Yes
The proinflammatory cytokine, _____, is markedly elevated in HS lesions and in the serum of patients with HS
TNF-alpha
_____, another potent proinflammatory cytokine, is also strikingly elevated in lesional and perilesional skin
IL-1beta
Traditional bacterial cultures taken from involved sites are often negative or grow
Commensal skin flora
Most frequently isolated organisms
Coagulase-negative staphylococus
Anaerobic bacteria
HS is frequently associated with other diseases of follicular occlusion. The tetrad of _____ is well documented
HS
Acne conglobata
Dissecting cellulitis of the scalp
Pilonidal cysts
HS is a clinical diagnosis based on 3 criteria, all of which must be present for the definitive diagnosis
Typical lesion (1 or more)
Typical distribution
Chronicity and recurrence