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RESEARCH PRODUCT
Psammomatoid Calcification-Rich Oncocytic Thyroid Adenoma With Clear-Cell Change
Adriana Handra-lucaBeate K. StraubGenevieve Belleanneesubject
0301 basic medicineMicrobiology (medical)oncocytePathologymedicine.medical_specialtyHistologyAdenomanoduleOncocytePathology and Forensic Medicineclear cellcalcification03 medical and health sciences0302 clinical medicinehemic and lymphatic diseasesmedicinelcsh:PathologyThyroidbusiness.industryThyroid adenomaThyroidNodule (medicine)medicine.diseasepsammomatoid/psammoma-like/pseudo-psammomamitochondria030104 developmental biologymedicine.anatomical_structure030220 oncology & carcinogenesisimmunohistochemistryCommentaryImmunohistochemistryadenomamedicine.symptombusinessClear cellCalcificationlcsh:RB1-214description
Abundant calcifications and clear-cell change may occur in oncocytic thyroid adenoma (OTA). We aimed to report the features of a case of OTA peculiar by the presence of extensive calcifications and of a clear-cell component. The OTA was detected on a right thyroid lobectomy specimen. Clear-cell change was observed in 15%-20% of the cells. Numerous, focally confluent psammomatoid calcifications, resulting in macrocalcifications, were identified. The nodule cells, uni- or multinucleated oncocytes, including those with clear cytoplasm, expressed heterogeneously TTF1, S100 protein, Bcl2, CD10, as well as CD138 and CD56. Lipid-droplet markers adipophilin and TIP47 were also expressed. In conclusion, we report a rare type of OTA, peculiar by the presence of numerous psammomatoid calcifications and of macrocalcification and by the presence of clear-cell change. Heterogeneity in membrane CD56 and/or CD138 expression as well as cytoplasmic heterogeneity of Bcl2 and lipid-droplet marker TIP47 might be relevant for calcification and clear-cell change, requiring further investigation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-12-26 | Clinical Pathology |