Abstract
Background
Abdominal wall endometriosis is usually preceded by obstetric operations and occasionally can be spontaneous. The diagnosis can be suspected clinically when there is systemic endometriosis or cyclic pain; otherwise it is difficult to differentiate if from other abdominal tumors and nonneoplastic conditions. Fine needle aspiration is an extremely valuable and safe tool for preoperative evaluation of abdominal wall endometriosis as the disease usually presents as a cutaneous/subcutaneous mass.
Cases
Two cases of abdominal wall endometriosis occurred. One was associated with systemic endometriosis, and the second was spontaneous. The diagnosis was reached correctly and confirmed by the subsequent histologic examination.
Conclusion
The cytopathologic diagnosis of endometriosis is feasible, and we need to include endometriosis in the differential diagnosis of an abdominal wall mass in a females. (Acta Cytol 2010;54:214-216)