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What is Psammoma bodies are seen in: and explain in detail?
Ans. A: Papillary carcinoma of thyroid 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 ceain tumors such as: Papillary thyroid carcinoma Papillary renal cell carcinoma Serous papillary ovarian adenocarcinoma (cystadenocarcinoma) Endometrial adenocarcinomas (Papillary serous carcinoma -3%-4%) Meningioma Mesothelio ma Psammoma bodies usually have a laminar appearance.