psammoma bodies


Also found in: Encyclopedia.

psam·mo·ma bod·ies

1. mineralized bodies occurring in the meninges, choroid plexus, and in certain meningiomas; composed usually of a central capillary surrounded by concentric whorls of meningocytes in various stages of hyaline change and mineralization; can also occur in benign and malignant epithelial tumors (such as papillary ovarian or thyroid carcinoma); Synonym(s): sand bodies
2. Synonym(s): corpora arenacea
3. Synonym(s): calcospherite
Farlex Partner Medical Dictionary © Farlex 2012

psam·mo·ma bod·ies

(sa-mō'mă bod'ēz)
1. Mineralized bodies occurring in the meninges, choroid plexus, and in some meningiomas; usually composed of a central capillary surrounded by concentric whorls of meningocytes in various stages of hyaline change and mineralization; can also occur in benign and malignant epithelial tumors (often papillary) or with chronic inflammation;
2. Synonym(s): corpora arenacea.
3. Synonym(s): calcospherite.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Mentioned in ?
References in periodicals archive ?
Matsumura, et al., Update on the potential significance of psammoma bodies in lung adenocarcinoma from a modern perspective, Histopathology 72 (4) (2018 Mar) 609-618.
Lung Adenocarcinoma Presented with Extensive Pulmonary Calcification
The result showed psammoma bodies and some heterocyst.
Internal Spreading of Papillary Thyroid Carcinoma: A Case Report and Systemic Review
The entire nodule was frozen, and sections showed small, tightly packed tubules and nests of epithelioid cells in a fibrous background notable for many psammoma bodies (Figure 1).
An Unusual Adenomatoid Tumor of Fimbria with Pronounced Psammoma Bodies in a BRCA Positive Patient as a Pitfall for Carcinoma on Frozen Section
Calcifications are basophilic in centre surrounding eosinophilic border resembling psammoma bodies. It also showed multiple sinusoidal blood-filled spaces devoid of endothelial lining and surrounded by fibrocellular stroma.
Recurrent Psammomatoid Juvenile Ossifying Fibroma with Aneurysmal Bone Cyst: An Unusual Case Presentation
It was considered to be an encapsulated variant of papillary carcinoma due to similar nuclear features, presence of psammoma bodies, immunohistochemistry profile and RET/PTC translocation.
Hyalinising trabecular tumour of the thyroid gland--a diagnostic challenge
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.
Fine needle aspiration cytology of an unusual case of papillary thyroid carcinoma metastatic to the breast
Also, psammoma bodies found in the Pap smear are suggestive of gynaecologic malignancy, and more detailed examination is required.5
Rare primary fallopian tube carcinoma; a gynaecologist's dilemma
Numerous psammoma bodies, squamous metaplasia, and marked sclerosis were the criteria used to diagnose the diffuse sclerosing variant of PTC (DSVPTC) [14].
Papillary thyroid carcinoma arising in children and adolescent hashimoto's thyroiditis: ultrasonographic and pathologic findings
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. Based on pathological studies the final diagnosis was confirmed as mature type IV SCT.
Type IV Sacrococcygeal Teratoma Displacing the Urinary Bladder: Unique Magnetic Resonance Imaging
Psammamatous melanotic schwannoma is circumscribed, heavily pigmented with psammoma bodies, tumour cells being S-100 positive and CD34 negative.
Bednar tumour: an infrequent diagnosis
Characteristic psammoma bodies and nuclear inclusions were also found (Figure 2).
A rare case of large skull base meningioma mimicking otitis media with effusion
Foamy macrophages and rare psammoma bodies occurred in the core of the papillae.
Papillary renal cell carcinoma embedded in an oncocytoma: case report of a rare combined tumour of the kidney

Medical browser ?
Full browser ?