Year: 2025 | Month: June | Volume: 12 | Issue: 6 | Pages: 623-627
DOI: https://doi.org/10.52403/ijrr.20250670
Development of Collision Tumor in Thyroid: Papillary Carcinoma and Hurthle Cell Carcinoma in Long Standing Hashimoto’s Thyroiditis - A New Rare Entity
Dr. B. Syam Sundara Rao1, Dr. Kharidehal Durga2, Dr. Vijayalakshmi Muramreddy3, Dr. G.V. Sunanda Lakshmi4
1Professor, Department of Pathology, Narayana Medical College, Nellore, A.P. India.
2Professor& HOD, Department of Pathology, Narayana Medical College, Nellore (A.P), India
3Professor, Department of Pathology, Narayana Medical College, Nellore (A.P), India
4Assistant Professor, Department of Pathology, ACSR Medical College, Nellore (A.P), India
Corresponding Author: Dr. B. Syam Sundara Rao
ABSTRACT
Collision tumors of thyroid are very rare that comprise two histopathological and morphological different tumors occurring simultaneously or as secondary metastases from other organs to the thyroid. These tumors are extremely rare and a few cases have been reported in stomach, colon, liver, kidney and ovary. Although thyroid neoplasms are common among endocrine neoplasms, thyroid collision tumors are rare and only a few cases have been reported in the literature. In the literature concurrence of papillary carcinoma and medullary carcinoma of thyroid is most frequently reported.
Keywords: Collision, Papillary carcinoma, Hurthle cell carcinoma, thyroid
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