A Wolf in Sheep’s Clothing: Extensive Musculoskeletal and Cutaneous TB Masquerading as Primary Erythema Nodosum

Musculoskeletal TB diagnosis requires a high index of suspicion, thorough physical exam, imaging, and tissue for culture and biopsy. Special attention should be placed on the combined risk factors of previous TB diagnosis, immunocompromised status, and symptoms refractory to alternative management strategies such as antibiotics and corticosteroids.