Primary unilateral tuberculous inguinal lymphadenitis.

We report the case of a young Greek woman who presented with erythema nodosum and isolated unilateral inguinal lymphadenopathy. Excision and biopsy of the lymph node showed infection due to M. tuberculosis. An extensive workup did not reveal any other foci of tuberculosis. Isolated tuberculous inguinal lymphadenitis is a rare entity in developed countries and is almost always bilateral. Our case is unique because the disease was unilateral and affected an otherwise healthy woman who had never traveled in endemic areas.