A rare case of collision tumor of thyroid gland: simultaneous occurrence of calcitonin negative medullary thyroid carcinoma and papillary thyroid carcinoma

Authors

  • Savita Saharan Department of Pathology, Sarder Patel Medical College, Bikaner, Rajasthan, India
  • Ranjana Solanki Department of Pathology, Sawai Man Singh Medical College, Jaipur, Rajasthan
  • Deepak Saharan Department of ENT, Government Medical College, Kota, Rajasthan

DOI:

https://doi.org/10.18203/issn.2454-5929.ijohns20194960

Keywords:

Thyroid collision tumor, Calcitonin, Negative medullary thyroid carcinoma

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.

Author Biography

Deepak Saharan, Department of ENT, Government Medical College, Kota, Rajasthan

assistant professor, department of otorhinolaryngology and head neck surgery

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Published

2019-10-23