Uncommon Association of Tuberculous Dactylitis and Cutaneous Polyarteritis Nodosa in a Hemodialysis Patient

Abstract

Tuberculous dactylitis, defined as the infection of the metacarpals, metatarsals, or phalanges of the hands or feet, is an uncommon manifestation of extrapulmonary tuberculosis. It is mainly seen in pediatric populations, especially those less than 6 years old. Here, we present a case of tuberculous dactylitis in an elderly patient with end-stage renal disease on hemodialysis. Moreover, our patient also developed generalized nodular lesions during hospitalization. Skin biopsy was consistent with cutaneous polyarteritis nodosa, which is a rare association with tuberculosis. She was treated with antituberculous drugs with significant improvement in both cutaneous nodules and dactylitic lesions.