A Rare Case of Thyroid Gland Metastasis from Laryngeal Cancer, Findings on [18F]FDG PET/CT

Parneet Singh; Tejasvini Singhal; Girish Kumar Parida; Pramit Kumar; Madhusmita Sethy; Deepak Kumar Das; Kanhaiyalal Agrawal; P Sai Sradha Patro

doi:10.4103/ijnm.ijnm_133_23

A Rare Case of Thyroid Gland Metastasis from Laryngeal Cancer, Findings on [18F]FDG PET/CT

Indian J Nucl Med. 2024 May-Jun;39(3):229-231. doi: 10.4103/ijnm.ijnm_133_23. Epub 2024 Aug 17.

Authors

Parneet Singh¹, Tejasvini Singhal¹, Girish Kumar Parida¹, Pramit Kumar¹, Madhusmita Sethy², Deepak Kumar Das³, Kanhaiyalal Agrawal¹, P Sai Sradha Patro¹

Affiliations

¹ Department of Nuclear Medicine, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India.
² Department of Pathology and Lab Medicine, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India.
³ Department of Radiotherapy, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India.

Abstract

Thyroid gland metastases from nonthyroidal malignancies are extremely rare. The most common primary malignancies associated with metastasis to thyroid gland include renal cell carcinoma, colorectal carcinoma, lung cancer, and breast cancer. Metastasis to thyroid rarely arises from primary laryngeal cancer. The presence of metastasis to thyroid gland is invariable and associated with poor prognosis and thus, should be differentiated from primary thyroid malignancy. Hereby, we have one such case of metastasis to thyroid gland from laryngeal cancer diagnosed on 18F-fluorodeoxyglucose positron emission tomography/computed tomography scan.

Keywords: Fluorodeoxyglucose positron emission tomography/computed tomography scan; laryngeal cancer; thyroid gland metastases.