A 28-year-old phenotypic woman with a 46,XY karyotype underwent endoscopic gonadectomy for definitive treatment of complete androgen insensitivity syndrome. Computed tomography helped to locate and identify gonadal tissue before surgery. The histologic findings were classified according to predominant cell types. Hamartomas are frequent findings in these patients. Hamartomatous nodules almost totally replaced normal testicular parenchyma in this woman.