Erythema nodosum (EN) is a form of septal panniculitis. No cause is fo
und in up to 50% of cases. It is associated with primary tuberculosis
in children. The association between EN and abdominal tuberculosis, a
rare form of tuberculosis is unusual. We report the case of a patient
with EN and tuberculous mesenteric lymphadenitis. A diagnosis of Mycob
acterium tuberculosis infection was made on the ground of EN, because
the abdominal tuberculosis was asymptomatic. In view of the rise in tu
berculosis in recent years, we should alert ourselves to this possible
association.