psammoma


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Related to psammoma: psammoma body

psammoma

 [sah-mo´mah]
a tumor, especially a meningioma, that contains psammoma bodies.

psam·mo·ma

(sa-mō'mă),
Obsolete term for psammomatous meningioma or meningioma.
[psammo- + G. -oma, tumor]

psammoma

(1) Psammoma body, see there.  
(2) An obsolete term for any tumour (benign or malignant) with psammoma bodies. 
(3) Psammomatous meningioma, see there. 
(4) Angiolithic sarcoma, see there.

psam·mo·ma

(sa-mō'mă)
Obsolete term for psammomatous meningioma
[psammo- + G. -oma, tumor]
References in periodicals archive ?
Caption: Figure 5: (a) Pathology section of right thyroid lobe: red arrow for psammoma body.
Based on the histopathology and the IHC reactions, the lesion appeared benign and was diagnosed as adenomatoid tumor with psammoma bodies.
(1) Histopathologically, PJOF shows the presence of numerous small round ossicles called psammoma bodies in a cellular fibrous stroma.
Caption: Figure 3: Microscopically, diffusely scattered tumor aggregates, extensive fibrosis, marked lymphocytic infiltration with formation of lymphoid follicles, and abundant psammoma bodies (a) were evident against a background of Hashimoto's thyroiditis (b) (Hematoxylin & Eosin stain x40).
The presence of nuclear pseudoinclusions, psammoma bodies and the absence of significant atypia, in most cases, should allow distinction from SCC.
These criteria mainly included the morphology of the nucleus and its location within the cell, the existence and the shape of the cytoplasm, the presence of psammoma bodies, the cell-to-cell contact, the cellular density within the specimen, the growth pattern (i.e., diffuse, well sorted), and the presence of blood vessels.
Nuclear pseudoinclusions and psammoma bodies, which are characteristic histologic features of meningiomas, are not observed in HPCs.12 Both meningiomas and HPCs are vimentin positive, suggesting a mesenchymal origin.
Bu degisikliklere ragmen psammoma cisimciklerinin (mikrokalsifikasyonlar) gorulmesi papiller karsinomu telkin eder (13) , (14).
A pathologist reported that the tissue was a benign serous papillary rumor with psammoma bodies.
The stroma presented fibroblastic reaction and were accompanied by psammoma bodies.
"Presence of nanobacteria in psammoma bodies of ovarian cancer: evidence for pathogenic role in intratumoral biomineralization, Histopathology, December 2004.
Raras variantes histologicas de neurofibroma incluyen cambios epitelioides, musculo esqueletico, glandulas benignas, pseudorosetas, celulas pigmentadas de melanina o cuerpos de psammoma, lo que hace que muchas variantes de neurofibroma se hayan reportado, entre ellos el clasico, el mixoide, el celular, el hialinizado, epitelioide, difuso, paciniano, pigmentado, granular, lipomatoso, con celulas 11 dendriticas, con pseudorosetas y con rabdomiosarcoma.