Case ReportInternational Journal of Otorhinolaryngology and Head and Neck Surgery
Publication: A rare case of collision tumor of thyroid gland: simultaneous occurrence of calcitonin negative medullary thyroid carcinoma and papillary thyroid carcinoma
Int J Otorhinolaryngol Head Neck Surg. 2019;5(6):1726-1728.DOI10.18203/issn.2454-5929.ijohns20194960
Abstract
Medullary thyroid carcinoma and papillary thyroid carcinoma are two distinct types of thyroid carcinoma having different cellular origin. The simultaneous occurrence of two distinct neoplasms termed “collision tumour” and it is a rare entity. Sometimes the medullary component does not show calcitonin positivity and hence this becomes a very rare entity. Herein we describe a very rare case of simultaneous occurrence of calcitonin negative medullary thyroid carcinoma and papillary thyroid carcinoma.
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Affiliations
- Department of Pathology, Sarder Patel Medical College, Bikaner, Rajasthan, India
- Department of Pathology, Sawai Man Singh Medical College, Jaipur, Rajasthan
- Department of ENT, Government Medical College, Kota, Rajasthan