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The latter had, through the years, been variously described as bizarre cutaneous neurofibroma, myxoma of nerve sheath, and pacinian neurofibroma. [4] Clinically, neurothekeomas present as a solitary nodule of the skin. The most common sites of occurrence are the head and neck and the extremities.
The primary Schwann cell differentiation and neoplastic proliferations are characteristics of peripheral nerve sheath tumors. For instance, the Schwann cell, which is the major neoplastic cell component of neurofibroma, [7] is cytologically distinguished by the expression of S-100 protein and wavy nuclear outlines.
A neurofibroma is a benign nerve-sheath tumor in the peripheral nervous system. In 90% of cases, they are found as stand-alone tumors ( solitary neurofibroma , solitary nerve sheath tumor [ 1 ] or sporadic neurofibroma [ 1 ] ), while the remainder are found in persons with neurofibromatosis type I (NF1), an autosomal-dominant genetically ...
Neurofibroma: Neuro-specific enolase: Merkel cell carcinoma: Non-aqueous alcoholic eosin stain (NAES) Pseudogout: Oil red O: Sebaceous carcinoma Angiokeratoma corporis diffusum Subcutaneous fat necrosis of the newborn: Peanut agglutinin: Basal cell carcinoma: Phosphotungsten acid-hematoxylin (PTAH) Infantile digital fibromatosis: Pogoda red ...
Lipofibromatosis-like neural tumor (LPF-NT) is an extremely rare soft tissue tumor first described by Agaram et al in 2016. [1] As of mid-2021, at least 39 cases of LPF-NT have been reported in the literature.
Differential diagnoses of plexiform fibrohistiocytic tumor include plexiform schwannoma, plexiform neurofibroma, cellular neurothekeoma, deep benign fibrous histiocytoma, fibrous hamartoma of infancy, dermatofibroma, benign and malignant soft tissue giant cell tumor, and myofibromatosis.
Differential diagnosis includes periungual and subungual fibroma, acquired digital fibrokeratoma, superficial angiomyxoma, myxoid neurofibroma, dermal mucinosis, sclerosing perineuroma, low grade fibromyxoid sarcoma, myxoid dermatofibrosarcoma protuberans, fibroma of tendon sheath, giant cell tumour, glomus tumour, fibrous histiocytoma ...
Ischemic fasciities (IF), also termed atypical decubital fibroplasia [1] or decubital ischemic fasciitis, [2] is a rare pseudosarcomatous (i.e. easily mistaken for a sarcoma) tumor. It was first described by E. A. Montgomery et al. in 1992. [ 3 ]