A middle aged man presents to the OPD with a six months history of increasing swelling in his right leg (Refer A in the cover image). The swelling in his leg was firm and without any warmth or tenderness on palpation. MRI of the leg revealed well-defined cystic lesions of about 19.2 x 12.4 x 9.8 cm, with several daughter cysts and floating membranes (Refer B and C in the cover image). CT of the thorax and abdominal region showed no cysts. Further, an enzyme-linked immunosorbent assay (ELISA) was carried out. Which of the following is the most probable diagnosis in this case?
A. Sebaceous cysts B. Echinococcal cysts C. Metastatic sarcoma D. Lipomas Source : NEJM Stay tuned, the correct answer will be posted soon! *This image-based question is from the Editorial team of Docplexus and is meant for educational purposes only.
