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Intramedullary abscesses of the spinal cord are the rarest form of infectious lesions of the central nervous system. We report surgical treatment of a patient with intramedullary cervical abscess caused by L. monocytogenes. Features of this case are absence of primary purulent focus and atypical infectious agent. The patient underwent surgical treatment for intramedullary cervical abscess and subsequent antimicrobial therapy. Subtotal regression of neurological symptoms was noted in early postoperative period. The authors emphasize strict collegial decision-making regarding diagnosis of this disease and choice of optimal treatment strategy.

Malignant peripheral nerve sheath tumors (MPNSTs) are soft tissue sarcomas that develop from peripheral nerve sheath cells (T. Hirose, B.W. Scheithauer). These tumors are characterized by aggressive growth with an unfavorable outcome and may develop de novo or through malignant transformation of schwannomas, neurofibromas, or ganglioneuromas. MPNSTs are characterized by a rapid course and a poor prognosis. In this article, we reported cases of patients with malignant peripheral nerve tumors of the brachial plexus trunks and spinal localization.