Psammoma bodies

Psammoma bodies are microscopic, rounded structures commonly found in some types of tumours. These bodies are characterized by concentric layers of calcium and proteins, giving them a lamellated or onion-like appearance under a microscope. The term “psammoma” is derived from the Greek words “psammos,” meaning sand, and “oma,” meaning tumour. Psammoma bodies are commonly associated …
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A meningioma is a tumour that starts in the meninges, a thin layer of tissue that covers the outside of the brain and spinal cord. The tumour is made up of specialized meningothelial cells that are normally attached to a part of the meninges called the dura. A meningioma can develop in any location where …
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