December 1, 2023
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 with tumours that show a papillary pattern of growth. In pathology, papillary refers to a finger-like projection of tissue with tumour cells lining the outside surface of the tissue.
Examples of tumours that often contain psammoma bodies:
This article was written by doctors to help you read and understand your pathology report. Contact us if you have questions about this article or your pathology report. For a complete introduction to your pathology report, read this article.