Leptomeningeal Metastases
نویسندگان
چکیده
1. Carcinomatous meningitis (metastases caused by carcinoma such as lung and breast) 2. Meningeal gliomatosis (dissemination of CSF caused by malignant glial tumors) 3. Leptomeningeal metastases secondary to other underlying solid tumors (e.g., rhabdomyosarcoma, neuroblastoma, medulloblastoma, other primitive neuroectodermal tumors) 4. Lymphomatous meningitis (metastases caused by lymphoma) 5. Leukemic meningitis (metastases caused by leukemia) (Chamberlain, 1992; Grossman and Moynihan, 1991; Kaplan et al., 1990; Little et al., 1974; Olson et al., 1974; Packer et al., 1985; Shapiro et al., 1977; Theodore and Gendelman, 1981; Wasserstrom et al., 1982; Yung et al., 1980).
منابع مشابه
MR imaging of leptomeningeal metastases: comparison of three sequences.
BACKGROUND AND PURPOSE Recent work has shown that fluid-attenuated inversion recovery (FLAIR) imaging with contrast enhancement is highly sensitive for detecting subarachnoid space disease. We hypothesized that contrast-enhanced FLAIR imaging has superior sensitivity to contrast-enhanced T1-weighted MR imaging in detecting leptomeningeal metastases. METHODS Sixty-eight patients referred for s...
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Brain metastases are unusual from urethelial carcinoma of bladder and particularly the occurrence of leptomeningeal metastases is extremely rare, with few cases described in the literature. We present a case of a 45-year-old man with a rare brain metastases as the first metastatic manifestation secondary to urethelial carcinoma of bladder followed by leptomeningeal metastases without any other ...
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OBJECTIVE The median survival of leptomeningeal metastases is short despite therapy and is sometime associated with hydrocephalus. We investigated the prognostic significance of surgically treated hydrocephalus in leptomeningeal metastases. MATERIALS AND METHODS Between December 2005 and November 2012, 1343 patients had brain metastases from systemic solid tumors. Of these, 71 patients (5.3%)...
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Leptomeningeal carcinomatosis, known by a variety of names, including leptomeningeal metastases and neoplastic meningitis, indicates spread of tumor to the cerebrospinal fluid (CSF) and invasion of the subarachnoid space. The term leptomeningeal (from the Greek lepto, meaning “fine” or “slight”) describes the thin meninges, the arachnoid and the pia mater, between which the CSF is located. Alth...
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