psammoma

Obsolete term for psammomatous meningioma or meningioma. [psammo- + G. -oma, tumor]
- Virchow p. SYN: psammomatous meningioma.

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psam·mo·ma sa-'mō-mə n, pl -mas or -ma·ta -mət-ə a hard fibrous tumor of the meninges of the brain and spinal cord containing calcareous matter
psam·mo·ma·tous sa-'mō-mət-əs, -'mä- adj

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n.
a tumour containing gritty sandlike particles (psammoma bodies). It is typical of cancer of the ovary but may also be found in the meninges (the membranes surrounding the brain).

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psam·mo·ma (sam-oґmə) [psamm- + -oma] 1. any tumor that contains psammoma bodies. 2. psammomatous meningioma.

Medical dictionary. 2011.

Look at other dictionaries:

  • psammoma — n. a tumour containing gritty sandlike particles (psammoma bodies). It is typical of cancer of the ovary but may also be found in the meninges (the membranes surrounding the brain) …   The new mediacal dictionary

  • psammoma — noun A brain tumour containing concretions resembling grains of sand …   Wiktionary

  • psammoma — psam·mo·ma …   English syllables

  • psammoma — noun a tumor derived from fibrous tissue of the meninges or choroid plexus or certain other structures associated with the brain; characterized by sandlike particles • Syn: ↑sand tumor • Hypernyms: ↑tumor, ↑tumour, ↑neoplasm …   Useful english dictionary

  • Psammoma body — A psammoma body is a round collection of calcium, seen microscopically. The term is derived from the Greek word psammos meaning sand. Psammoma bodies are commonly seen in certain tumors such as: * papillary thyroid carcinoma * renal cell… …   Wikipedia

  • 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.… …   Medical dictionary

  • psammoma body — A structure found in some benign (noncancerous) or malignant (cancerous) tumor cells. Psammoma bodies look like hardened concentric rings when viewed under a microscope. They can be a sign of chronic inflammation …   English dictionary of cancer terms

  • sand tumor — psammoma …   Medical dictionary

  • псаммома — (psammoma; псамм + ома; син. ацервулома) общее название опухолей, в ткани которых обнаруживают псаммозные тельца …   Большой медицинский словарь

  • Псаммо́ма — (psammoma; Псамм + ома; син. ацервулома) общее название опухолей, в ткани которых обнаруживают псаммозные тельца. Псаммома яичника злокачественная (р. ovarii malignum) см. Кистома яичника цилиоэпителиальная малигнизированная (Кистома яичника) …   Медицинская энциклопедия

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