psammoma bodies


Also found in: Medical.

psammoma bodies

[sa′mäm·ə ‚bäd·ēz]
(pathology)
Laminated calcific spherical structures found in certain benign and malignant tumors.
References in periodicals archive ?
Psammoma bodies may be present, but they are not distinguishing features of endometrial serous carcinoma.
1) The pathognomonic histopathologic feature of the psammomatous type is the presence of spherical ossicles, which are similar to psammoma bodies.
Psammoma bodies and cytoplasmic yellow bodies were absent.
Psammoma bodies are a typical finding in papillary carcinoma24.
Helpful features to distinguish these differential diagnoses are the foamy macrophages, psammoma bodies, and glassy hyaline globules that can be associated with PRCC but are not seen in ACD-RCC.
Occasionally, metastases to the breast demonstrate features that lead the pathologist to a correct diagnosis, such as cells with nuclear grooves, intranuclear inclusions, powdery chromatin and psammoma bodies as seen in our case.
Also, psammoma bodies found in the Pap smear are suggestive of gynaecologic malignancy, and more detailed examination is required.
Numerous psammoma bodies, squamous metaplasia, and marked sclerosis were the criteria used to diagnose the diffuse sclerosing variant of PTC (DSVPTC) [14].
Histopathological investigations of the mass showed a cystic neoplasm composed of various mature tissue components including skin, pilosebaceous glands, well-developed respiratory and gastric epithelium, and glial tissue with numerous psammoma bodies.
Psammamatous melanotic schwannoma is circumscribed, heavily pigmented with psammoma bodies, tumour cells being S-100 positive and CD34 negative.
Foamy macrophages and rare psammoma bodies occurred in the core of the papillae.