Fig. 4
From: Giant angiomyofibroblastoma of the scrotum: a case report and review of the literature
Immunohistochemistry results. A. CD31 (foci +) negative, indicating that the tumor cells did not originate from blood vessels; B. S-100 (–), positive, exclusive of neuronal origin and malignant melanoma; C. SALL-4 (–) negative, exclusive of reproductive source; D. desmin (+)