Perirectal sinus tracks and fistulas caused by hidradenitis suppurativa.

Hidradenitis suppurativa is an uncommon chronic suppurative inflammatory disease affecting the apocrine glands of the axillary and anogenital regions. Chronic recurrences of the disease can result in painful abscesses, sinus track and fistula formation, and disabling scarring in the affected areas. To our knowledge, hidradenitis suppurativa has not been reported previously in the radiology literature as a cause of perirectal disease. We therefore present a patient with hidradenitis suppurativa in whom a double-contrast barium enema examination revealed multiple perirectal sinus tracks and fistulas.