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What is Psamomma bodies are seen in? and explain in detail?
Ans. (a) Papillary carcinoma thyroidRef. Robbiris pathology 9th ed. /1095* Psammoma bodies are associated with the papillary histo-morphology and are thought to arise from:1 The infarction and calcification of papillae tips2 Calcification of intra-lymphatic tumor thrombi* Psammoma bodies are commonly seen in certain tumors such as:# Papillary thyroid carcinoma# Papillary renal cell carcinoma# Ovarian papillary serous cyst-adenocarcinoma# Endometrial adenocarcinomas (Papillary serous carcinoma ~3%-4%)# Meningiomas, in the central nervous system# Peritoneal and Pleural Mesothelioma# Somatostatinoma# Prolactinoma# Mesothelioma, in membranes that line body cavities