Aneurysmal ("angiomatoid") fibrous histiocytoma in a child.

Aneurysmal benign fibrous histiocytoma with atrophic features.

Aneurysmal benign fibrous histiocytoma is an uncommon pathologic variant of dermatofibroma. In addition to the features of a typical dermatofibroma, it has large cleft-like or cavernous blood-filled spaces with numerous hemosiderin pigments. It should be differentiated from angiomatoid malignant fibrous histiocytoma, malignant melanoma, and vascular tumors such as Kaposi's sarcoma and angiosarc...

Solid variant of angiomatoid fibrous histiocytoma masked by interstitial granuloma annulare in a 13-year-old child: no evidence for translocation breakpoints.

Subcutaneous Angiomatoid Fibrous Histiocytoma Mimicking Metastatic Melanoma

Angiomatoid fibrous histiocytoma is an uncommon soft-tissue tumor of intermediate malignancy that is often misdiagnosed initially. As there is not one immunohistochemical marker that consequently stains positive or negative for angiomatoid fibrous histiocytoma, molecular diagnostics are becoming more widely used. So far three translocations have been reported to arise in angiomatoid fibrous his...

Clinicopathological features of angiomatoid fibrous histiocytoma: a series of 21 cases with variant morphology.

We analyzed the clinicopathological features of angiomatoid fibrous histiocytoma (AFH) in 21 cases with emphasis on variant morphology. In our series, ten patients were male and eleven were female. The patients' mean age was 26.9 years old. Tumors were located on the lower limbs in eight cases, upper limbs in three, trunk in five, head and neck in four, and trachea in one. Microscopically, thir...

A simple Baker's cyst? Tocilizumab remits paraneoplastic signs and controls growth of IL-6-producing angiomatoid malignant fibrous histiocytoma