The mnemonic
PSaMMoma
What each word stands for
- PPapillary thyroid carcinoma
- SaSerous cystadenocarcinoma of ovary
- MMeningioma
- MoMesothelioma
Why it matters clinically
Helps identify the tumour from a histology image showing laminated calcified bodies.
Where it stops being reliable
Psammoma bodies can occasionally appear in other lesions, so it is a pointer and not proof.
Teaching aid, still awaiting independent review. Confirm facts in a standard source.