An unusual misleading multiple nodules on the extremities – a case report

Abstract

Benign fibrous histiocytoma is a common benign dermal neoplasm mainly composed of a mixture of fibroblastic and histiocytic cells. It is also known as dermatofibroma, sclerosing haemangioma, or nodular subepidermal fibrosis. There are many histological variants of fibrous histiocytoma such as aneurysmal, cellular, epitheloid, atypical, keloidal and palisading subtypes. The diagnosis of cutaneous benign fibrous histiocytoma is generally easy; however, rare variants may be difficult to identify and the diagnosis can only be confirmed after histopathological examination and by immunohistochemical staining. We report a case of 52 yr old woman with asymptomatic multiple pigmented raised skin lesions over both lower limb and right arm which was histopathologically diagnosed as atypical benign fibrous histiocytoma(ABFH) involving subcutaneous tissue and the immunohistochemical staining was done and the treatment was proceeded with complete wide surgical excision due to its higher tendency to recur locally and the patient was advised for regular follow up.

Keywords

• Dermatofibroma
• Atypical fibrous histiocytoma
• fibrous histiocytoma.