calcospherite

calcospherite

 [kal″ko-sfēr´īt]
one of the minute globular bodies formed during calcification by chemical union of calcium particles and albuminous matter of cells.

cal·co·sphe·rite

(kal'kō-sfēr'īt),
A tiny, spheroidal, concentrically laminated body containing accretive deposits of calcium salts; found most frequently in papillary carcinoma of the thyroid and ovary, and in meningioma, probably as the result of degenerative changes in the fibrovascular stroma.
Synonym(s): psammoma bodies (3)
[L. calx, lime, + G. sphaira, sphere]

calcospherite

/cal·co·spher·ite/ (kal″ko-sfēr´īt) one of the tiny round bodies formed during calcification by chemical union of calcium particles and albuminous matter of cells.

calcospherite

[kal′kəsfir′īt]
a spherical mass of calcium salts and organic matter found in an area of calcification.

cal·co·sphe·rite

(kal'kō-sfēr'īt)
A tiny, spheroidal, concentrically laminated body containing deposits of calcium salts; found in papillary carcinoma of the thyroid and ovary and in meningioma.
Synonym(s): psammoma bodies (3) .
[L. calx, lime, + G. sphaira, sphere]

calcospherite

one of the minute globular bodies formed during calcification by chemical union of calcium particles and albuminous matter of cells.
References in periodicals archive ?
Histologically it is characterized by a diffuse infiltration of the colonic mucosa by sheets of large macrophages with eosinophilic granular cytoplasm and characteristic cytoplasmic calcospherites (Michaelis-Gutmann bodies), which are typically positive with Prussian blue and von Kossa stains.
INTRODUCTION: Pulmonary Alveolar Microlithiasis is rare diffuse lung disease of unknown Cause in which diffuse accumulation of numerous calcospherites in the alveolar space with or without thickened interstitium.
10) Confirmatory diagnosis can be established by open lung or transbronchial biopsy, showing intra-alveolar calcospherites, which in turn represent laminated calcium phosphate concretions.
17) Furthermore, biglycan was able to increase the coalescence of calcospherites (21) and apatite formation.
Calcospherites (psammoma or calcific bodies) may be seen.
Many of Wagge's conclusions were formed by Iris earlier experiments (Wagge 1951) that showed migrating epithelial cells were responsible for secretion of both the organic membranes and the crystals of calcium carbonate within the calcospherites (conchiolin compartments).
Calcospherites and occasionally metaplastic bone are described.
1) It is characterized by circumscription or encapsulation, trabecular growth pattern, polygonal and elongated cells, nuclear cytoplasmic inclusions and grooves, hyaline material, dilated sinusoids, laminated calcospherites, and cytoplasmic yellow bodies.
Ganglioglioma often presents radiologically as a mural nodule within a cyst and exhibits several helpful diagnostic features, including higher cellularity, dysmorphic or binucleate neurons unassociated with pink cells, pilocytic morphology of the glial component, calcospherites, desmoplasia, and perivascular lymphocytic infiltrates.
Microscopically, malakoplakia is characterized by aggregates of histiocytes, the Von Hanseman cells, with Michaelis-Gutmann calcospherites.
Previous reports of fine-needle aspiration of dermoid cysts from other sites have demonstrated various cytologic findings, including nucleated and anucleated squamous cells, hair, keratinous debris, cholesterol, calcospherites (calcium deposits), and inflammatory cells.
1,8,9] In tumoral calcinosis, the calcium hydroxyapatite crystals show amorphous basophilic psammoma body-like calcospherites and do not demonstrate any birefringence in the sections stained with H&E or the Shidham method (V.