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calcifications

Monday 15 November 2004

tissular calcification

Images

- Tumoral Calcinosis

- calciphylaxis

- Wikimedia: calcifications in a benign breast tissue / mammary calcifications

- Psammoma

- Psammoma in meningioma

- Psammoma in papilary thyroid carcinoma
*https://twitter.com/aakasharmand/status/847492220617805824

Digital slides

- JRC:6443 : Metastatic pulmonary calcification.

Definition: Pathologic calcification is the abnormal tissue deposition of calcium salts, together with smaller amounts of iron, magnesium, and other mineral salts.

Types

- tissular calcifications
- post-necrotic calcifications
- metastatic calcifications
- tumoral calcifications

- in atherosclerotic plaque

- calciphylaxis

Pathology

There are two forms of pathologic calcification. When the calcium deposition occurs locally in dying tissues, the phenomenon is known as post-necrotic calcifications (dystrophic calcification); it occurs despite normal serum levels of calcium and in the absence of derangements in calcium metabolism.

In contrast, the deposition of calcium salts in otherwise normal tissues is known as metastatic calcification, and it almost always results from hypercalcemia secondary to some disturbance in calcium metabolism.

Etiology

- calcium metabolism anomalies
- granulomatous processes

- granulomatoses

- histiocytic infiltrations

  • familial erythrophagocytic lymphohistiocytosis (FEL) (8058942)

- histiocytoses

- tumors

Localizations

- mammary calcifications
- cerebral calcifications
- subserosal calcifications ( peritoneal calcifications )
- renal calcifications

- adrenal calcifications

- cutaneous calcifications

See also

- tissular deposits

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