title: [Malignant epithelioid paravertebral schwannoma (author's transl)].
abstract: Tumors arising from the nerve sheaths are a controversial group of neoplasms because of disagreement regarding the clinical course and histopathologic characteristics. Malignant Schwannoma is a rare entity with aggressive biological behaviour (local infiltration and hematogenous metastases). The tumor arises from Schwann cells and may show diverse histological patterns. A malignant epithelioid paravertebral Schwannoma was diagnosed in a 48-year-old patient. Tumor metastases were demonstrated in the lungs, pericardium, liver, intestine, kidney, adrenals, bones and lymph nodes. The differential diagnosis and literature on this topic are commented on.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis / Q000473:pathology; D009442:Neurilemmoma / Q000150:complications / Q000473:pathology*; D012583:Schwann Cells / Q000473:pathology*; D013125:Spinal Neoplasms / Q000150:complications / Q000473:pathology*
vernacular_title: Schwannoma epitelioide maligno paravertebral.