Inguinal sarcoidosis– an Unusual Presentation

Abstract

Sarcoidosis is a chronic multisystemic disorder of unkown etiology. It is characterised by non caseating granulomas with pulmonary involvement, bilateral, in 90% cases. Hilar or paratracheal pulmonary lymphnodes are often enlarged. The disease also affects certain extra-pulmonary sites like liver, spleen (20%), joints, skin, eye and bone marrow1. This isa case report of a rare case of extra-pulmonary sarcoidosis, involving the inguinal lymph nodes,a rare site of occurrence as such. A 35-year-old female presented with a large solid diffuse lump in left thigh for 3 months. Clinically, it appeared to be a soft tissue
tumour. On FNAC, smears were paucicellular and only few spindle cells against a haemorrhagic background were seen. MRI showed multiple enlarged inguinal lymph nodes on the left side of the thigh. On CT, bilateral hilar lymphadenopathy was seen. Post excision lump on histopathological examination revealed, characteristic Schaumann bodies and asteroid bodies with multiple confluent non caseating granulomas, and a diagnosis of sarcoidosis was made. The case was finally diagnosed as extrapulmonary sarcoidosis of the inguinal region, which as such is a rare site for nodal involvement.