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Calcitonin-Negative Neuroendocrine Tumor of the Thyroid on 68Ga DOTANOC PET-CT

Tripathy, Sarthak MD*; Aggrawal, Shipra MD; Subudhi, Kishan MBBS*; Kumar, Rakesh MD*; Narwal, Anubhav MD

doi: 10.1097/RLU.0000000000002698
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Neuroendocrine tumors (NETs) of the thyroid gland are generally considered to be derived from parafollicular endocrine or C cells and are known as medullary thyroid carcinomas. Non–calcitonin-producing NETs of the thyroid are extremely rare in occurrence and pose a significant diagnostic dilemma for the physician and pathologist. We describe a case of a 58-year-old woman who was diagnosed as having primary NET thyroid with normal calcitonin levels and 68Ga DOTANOC PET-CT scan findings which were done for initial extent evaluation of the disease.

From the Departments of *Nuclear Medicine and PET-CT

Pathology, All India Institute of Medical Sciences, New Delhi, India.

Received for publication February 19, 2019; revision accepted May 28, 2019.

Conflicts of interest and sources of funding: none declared.

Correspondence to: Rakesh Kumar, MD, PhD, Diagnostic Nuclear Medicine Division, Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi 110029, India. E-mail:

Online date: July 8, 2019

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