... thesite of involvement, the size of the cyst, and the pressurecaused b y the enlarged cyst [1]. Usually, it presents asan inert, painless, non-inflammatory mass without anydeterioration of the ... diagnosed ashaving a primary subcutaneous hydatid cyst. In a large series of patients from Greece, the fre-quency of extra-hepatic and extra-pulmonary hydatido-sis was 9% [5]. However, in different ... findin gs of a thick cyst wall, calcif ications, daughtercysts, and a germinative membrane separated from thecyst wall are all specific to hydatid cysts [1-4]. Enhance-ment of the peri-cystic...