Malignant fibrous histiocytoma in a child's hand

Subcutaneous Granuloma Annulare in a Child’s Palm: A Case Report

“…[13][14][15][16] Immunohistochemical studies of the markers for histiocytes (CD68), muscle cells (desmin), myofibroblasts (␣-smooth muscle actin), epithelial cells (cytokeratin), and endothelial cells (CD34) are useful in making the diagnosis. The pathognomonic histologic feature of SGA is a palisading granuloma showing a central zone of necrobiosis with a peripheral zone of inflammation in which the infiltrates are in a palisading-like arrangement.…”

Palmar dermatofibroma in a patient with multiple porokeratosis

“… 1 By contrast, there have only been a few reported cases of fibrous histiocytoma occurring on the palms. 4 , 5 Although the patient denied precedent trauma, his hobby is wood carving, for which he frequently uses chisels with his dominant hand, namely the right hand. Therefore, it is possible that DF was triggered by repetitive mechanical stimuli.…”