| psammite | <chemical> A species of micaceous sandstone. Psammit"ic. Origin: Gr. Sandy, from sand: cf. F. Psammite. Source: Websters Dictionary (01 Mar 1998) |
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| psammo- | Sand. Origin: G. Psammos (05 Mar 2000) |
| psammocarcinoma | <tumour> Obsolete term for a carcinoma that contains calcified foci resembling psammoma bodies. (05 Mar 2000) |
| psammoma | <tumour> Obsolete term for psammomatous meningioma or meningioma. Origin: psammo-+ G. -oma, tumour (05 Mar 2000) |
| psammoma bodies | Mineralised body's occurring in the meninges, choroid plexus, and in certain meningiomas; composed usually of a central capillary surrounded by concentric whorls of meningocytes in various stages of hyaline change and mineralization; can also occur in benign and malignant epithelial tumours (often papillary) or with chronic inflammation. Synonym: sand bodies. Synonym: corpora arenacea. Synonym: calcospherite. (05 Mar 2000) |
| psammomatous | Possessing or characterised by the presence of psammoma bodies; refers usually to certain types of meningioma or to meningeal hyperplasia with psammoma bodies. (05 Mar 2000) |
| psammomatous meningioma | <tumour> A firm cellular neoplasm derived from fibrous tissue of the meninges, choroid plexus, and certain other structures associated with the brain, characterised by the formation of multiple, discrete, concentrically laminated, calcareous bodies (psammoma bodies); most of these neoplasms are histologically benign, but may lead to severe symptoms as a result of compressing the brain. Synonym: angiolithic sarcoma, sand tumour, Virchow's psammoma. (05 Mar 2000) |
| psammous | Sandy. Origin: G. Psammos, sand (05 Mar 2000) |
| psammoma |
a tumor derived from fibrous tissue of the meninges or choroid plexus or certain other structures associated with the brain; characterized by sandlike particles
Ãâó: wordnet.princeton.edu/perl/webwn
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| psammocarcinoma |
(psam
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| psammomatous meningioma |
a transitional meningioma that contains many psammoma bodies; called also psammoma.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| psammoma |
(psam
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| psammoma body |
a spherical, concentrically laminated mass of calcareous material, usually of microscopic size; such bodies occur in both benign and malignant epithelial and connective-tissue tumors, and are sometimes associated with chronic inflammation.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| psamm | a tumor derived from fibrous tissue of the meninges or choroid plexus or certain other structures associated with the brain |
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