Sciatic endometriosis diagnosed by computerized tomography-guided biopsy and CD10 immunohistochemical staining.

OBJECTIVE

To report a case of sciatic endometriosis diagnosed by computerized tomography (CT)-guided biopsy in combination with CD10 immunohistochemical staining.

DESIGN

Case report.

SETTING

University hospital.

PATIENT(S): A 33-year-old Japanese woman complaining of right-sided sciatica.

INTERVENTION(S): Transgluteal computerized tomography (CT)-guided needle biopsy of a mass in the course of the right sciatic nerve was conducted for a histologic diagnosis.

MAIN OUTCOME MEASURE(S): Histologic study with hematoxylin and eosin staining and CD10 immunohistochemical staining was performed.

RESULT(S): Computerized tomography-guided biopsy was performed without any complication. CD10 staining distinguished endometrial stromal cells.

CONCLUSION(S): Computerized tomography-guided biopsy followed by CD10 immunohistochemical staining is a minimally invasive procedure for accurate diagnosis of sciatic endometriosis.