Cutaneous metastases of malignant peripheral nerve sheath tumor: Ineffectiveness of intralesional methotrexate
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چکیده
منابع مشابه
Intrathoracic Malignant Peripheral Nerve Sheath Tumor: Histopathological and Immunohistochemical Features
Malignant peripheral nerve sheath tumor (MPNST) is a rare nerve sheath tumor derived from Schwann cells or pleuripotent cells of neural crest. Neurogenic tumors make about 10-20% of all mediastinal tumors. Incidence of MPNST is 0.001% in general population and 0.16% in patients with neurofibromatosis I (NF I). We report a case of 60 year female presenting with progressive cough and breathlessne...
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Malignant peripheral nerve sheath tumor (MPNST) is a rare soft tissue sarcoma arising from neuroectoderm-derived cells comprising the outer coverings of peripheral nerves. Given the diverse cell types comprising the peripheral nerve sheath, both benign and malignant nerve sheath tumors display a wide range of histologic appearances. MPNST can arise either in association with proximal nerve trun...
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Malignant peripheral nerve sheath tumor (MPNST) is a rare malignant tumor that develops either from a preexisting neurofibroma or de novo. The cell of origin is believed to be the Schwann cell and possibly other nerve sheath cells. In this report, we describe a rare case of MPNST that arise from the socket of second left maxillary molar that has been already extracted in a young man. He was ref...
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A 40-year-old man presented with complaints of left-sided lower back discomfort for 2 to 3 months. There was no other significant history. Physical examination was unremarkable except for a palpable mass in the left flank. Ultrasonography showed a hypoechoic mass. Biphasic contrast-enhanced computerized tomogram revealed a large, heterogenous, infiltrating, necrotic mass lesion arising from the...
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Malignant melanoma is known for its protean cytomorphological features, architectural patterns, and stromal changes, in addition to its ability to mimic various benign and malignant non-melanocytic tumours. Anecdotal cases of metastatic malignant melanoma simulating soft tissue sarcomas have been reported. Interestingly, this mimicry is more often seen in recurrent lesions and metastatic deposi...
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ژورنال
عنوان ژورنال: JAAD Case Reports
سال: 2018
ISSN: 2352-5126
DOI: 10.1016/j.jdcr.2018.04.011