Atypical Cutaneous Fibrous Histiocytoma: An Unusual and Misleading Variant of Fibrous Histiocytoma

Atypical Cutaneous Fibrous Histiocytoma: An Unusual and Misleading Variant of Fibrous Histiocytoma

Atypical fibrous histiocytoma is a distinctive variant of cutaneous fibrous histiocytoma, which is often mistaken histologically for sarcoma and which have a tendency to recur locally and a capacity to metastasize, although very rarely. We report a new case of atypical cutaneous fibrous histiocytoma in a 31-year-old man who presented with a recurrent polypoid nodule on the abdominal wall. The d...

Atypical fibrous histiocytoma and atypical fibroxanthoma: presentation of two cases.

We report two rare examples of dermal fibrohistiocytic stromal tumors: one case of atypical fibrous histiocytoma (AFH) and another one of atypical fibroxanthoma (AFX), which can be confused in surgical pathology diagnosis with high-grade malignant neoplasm. Histologically, a proliferation of mononuclear, spindle-shaped, or histiocytoid cells and/or multinucleated cells, usually admixed with inf...

Malignant fibrous histiocytoma.

Calvarial malignant fibrous histiocytoma.

Primary malignant fibrous histiocytoma (MFH) of the central nervous system (CNS) is uncommon. We report cases of two young patients of MFH arising from the cranial meninges and involving the adjacent skull and scalp. There was infiltration of the brain in one case. Both the lesions were excised and primary scalp repair was performed.

Cervical Angiomatoid Fibrous Histiocytoma

Background: Angiomatoid fibrous histiocytoma (AFH) is a rare type of sarcoma with low-grade malignancy that usually occurs in young subjects. AFH is uncommon in the head and neck region. Methods: We describe an exceptional case of localization in the neck. This is the first report of a rare variant of AFH presenting in a 42-year-old woman. The tumor was situated posterior to the carotid artery ...