Erdheim‐Chester disease: A multisystem disease case illustration with rare manifestations and treatment challenges

Abstract

AbstractErdheim‐Chester disease is a rare multisystemic disease. A 50‐year‐old woman, presented with a recurrent pain and swelling of the left knee. Bone scintigraphy showed increased tracer uptake of peripheral skeleton. The computed tomography showed tissular infiltration in the retroperitoneum, around the vessels. Immunohistochemistry showed CD68 (+) and CD1a (−).