“…In such 'primary' cases, it has been hypothesized that the encasing membrane or cocoon arises either as a result of subclinical peritoneal infl ammation, immunological reaction to viral infections, or infections of the genital organs, or even, retrograde menstruation; however, as of now, there is no conclusive evidence to favor any of these theories, especially since more and more reports are coming out of the disease in older patients and even in males. [1][2][3][4][5] Our patient, too, adds to the growing list of idiopathic abdominal cocoon being seen in male patients, adding further to the questionability of the above mentioned hypotheses. We feel that the disease arises as a peritoneal reaction secondary to an exaggerated immune response to some yet, unidentifi ed stimulus.…”