Ischiogluteal bursitis: A not to be forgotten differential of gluteal lesions with fluid-fluid levels

Abstract

Ischiogluteal bursitis, also called “weaver’s bottom,” arises due to chronic irritation of the soft tissues overlying the ischial tuberosity. Here, we report a case, in which multiple fluid-fluid levels were seen in a patient with bilateral ischiogluteal bursitis. The previous studies have suggested that ischiogluteal bursitis presents as a cystic lesion at its characteristic location. However, the presence of multiple fluid-fluid levels within the inflamed bursa may confuse young radiologists. To make things worse, a list of differentials for soft-tissue lesions with fluid-fluid levels often omits this common yet often overlooked condition.