Erythema nodosum and primary tuberculosis: Case report

Background: Erythema nodosum is a type of panniculitis, typically manifested as erythematous nodules. Case history: A case of a young woman with clinical picture of erythema nodosum and isolated unilateral axillar lymphadenopathy is presented. Excision and biopsy of lymph nodes revealed a chronic granulomatous inflammation, suggesting the diagnosis of tuberculosis. An extensive diagnostic workup did not reveal any other focal points of tuberculosis. She has successfully received antituberculotic therapy. Conclusion: It is suggested that tuberculosis should be a part of the differential diagnosis in any case of erythema nodosum with isolated unilateral lymphadenitis.