Hidradenitis Suppurativa: a lesser-known cause of AA amyloidosis.

ABSTRACT

BACKGROUND: Hidradenitis suppurativa (HS) is a chronic, disabling skin disease. The estimated prevalence is 1-4 % worldwide. HS is a systemic inflammatory disease and can cause AA amyloidosis. The first report of HS-related amyloidosis dates back to 1966; since then, sporadic cases have been reported. Our work will be the first case series on HS and AA amyloidosis. CASE SERIES We report eight HS cases complicated with amyloidosis. Six patients were male. The median age was 44 years, and the median disease duration before the amyloidosis diagnosis was 15.5 years. In a mean follow-up of 18 ± 6 months, we achieved favorable renal responses in four of the eight cases (50 %). All cases had a dermatologic response, with four complete and four partial remissions. CONCLUSION: HS is a systemic inflammatory disorder that may cause AA amyloidosis. Aggressive treatment of HS may halt the progression of amyloidosis. HIPPOKRATIA 2020, 24(1) 33-37.