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  • Title: Malignant peripheral nerve sheath tumor with glandular differentiation in a patient with neurofibromatosis type 1.
    Author: Galatian AA, Crowson AN, Fischer RJ, Yob EH, Shendrik I.
    Journal: Am J Dermatopathol; 2013 Dec; 35(8):859-63. PubMed ID: 24247575.
    Abstract:
    : The authors report an unusual case of malignant peripheral nerve sheath tumor with malignant differentiation arising as a subcutaneous nodule in the thigh of a 53-year-old woman with a history significant for neurofibromatosis type 1. Peripheral nerve sheath tumors containing a glandular component, commonly referred to as glandular peripheral nerve sheath tumors, are rare neoplasms found largely in patients with neurofibromatosis type 1. These tumors are frequently malignant; recognition of metastatic potential is made based on the atypical spindle-cell component. Rarely, as in our case, the glandular component is also histologically malignant. Only 5 such tumors have been described in the literature to date. Glandular differentiation, particularly with malignant features, can be a potentially misleading feature when found as a component of malignant peripheral nerve sheath tumors and raise a wide spectrum of differential diagnoses, including metastatic Sertoli-Leydig tumors. The patient is free of disease for 22 months after wide tumor reexcision, which contrasts with previously reported devastatingly poor prognosis of these tumors.
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