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Erdheim-Chester disease is a rare, non-Langerhans form of systemic histiocytosis of unknown etiology. The disease affects multiple organ systems, including musculoskeletal, cardiac, pulmonary, gastrointestinal, and central nervous systems, producing protean manifestations. Neurological manifestations are less frequent. We present a 44-year-old patient with Erdheim-Chester disease who had bilateral carotid artery occlusion and cavernous sinus infiltration.

Erdheim-Chester disease is a rare, non-Langerhans form of systemic histiocytosis of unknown etiology. The disease affects multiple organ systems, including musculoskeletal, cardiac, pulmonary, gastrointestinal, and central nervous systems, producing protean manifestations. Neurological manifestations are less frequent. We present a 44-year-old patient with Erdheim-Chester disease who had bilateral carotid artery occlusion and cavernous sinus infiltration

Hemangioblastomas (HBLs) are highly vascular and cystic benign neoplasms. They form very small part of intracranial tumours and are often localized in the posterior fossa. Although most of them are sporadic, a significant group is accompanied with von Hippel-Lindau (VHL) syndrome. This case report presents a 57-year-old woman treated with total resection using micro-surgical technique and was diagnosed as HBL based on histopathologic findings. Contrast-enhanced cranial MRI of the patient with the complaints of spasms in the right side of body showed a right paracentral mass that caused midline shift. In literature, the previously reported cases of supratentorial HBL unaccompanied with VHL syndrome were searched in PUBMED, compiled and presented. It should be borne in mind that rare HBLs manifesting with various neurological symptoms may occur in the supratentorial region, and may not accompany with VHL syndrome.

Background. Solitary fibrous tumors are ubiquitous mesenchymal neoplasms of putative fibroblastic origin. They were originally described in the pleura but subsequently have been reported in many extraserosal sites. Solitary fibrous tumors may also occur in the meninges, central nervous system parenchyma, and spinal cord. Case. A 67-year-old male patient with progressive lower extremity weakness, urinary urgency, and sexual dysfunction has been admitted to our hospital. On his lumbar MRI, we detected an intradural lesion posterior to the L3 vertebral corpus. We resected the lesion by L3 total laminectomy. Immunohistological findings revealed strong and diffuse immunopositivity with vimentin, CD34, and bcl-2. Ki-67 proliferation index was 5–8%. We did not detect any recurrence 12 months after his operation. Conclusion. SFT is mostly seen in young and middle-aged patients and should be considered among differential diagnosis in cases suffering from pain, hypoesthesia, and urinary dysfunction. Gross total resection should be primary treatment. Tumors that have high Ki-67 labeling should be followed up for potential recurrences.