The microscopic architecture of calcium deposits in malignant tumors
In short: This pathology lecture explores the formation of psammoma bodies—concentric, laminated calcium deposits. It explains how tissue degeneration and specific chemical environments lead to these distinctive structures in various cancers.
Psammoma bodies are characterized by concentric laminated dystrophic calcification. They typically form as a result of tissue degeneration, necrosis, and the action of hydrolytic, proteolytic, and digestive enzymes. These processes alter the local pH and chemical balance, leading to the deposition of white chalky calcium salts.
The video covers the clinical significance of these bodies in various malignancies, specifically highlighting their presence in papillary carcinomas. Examples include papillary thyroid carcinoma, papillary adenocarcinoma, and papillary serous cystadenocarcinoma, as well as cancers of the breast, bladder, and vulva.
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Sources
- Summary by Intellect · source: Psammoma Bodies - Concentric Laminated Dystrophic Calcification - Malignancy (Cancers) - Pathology
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