Journal of Korean Thyroid Association  2015;8(1):117-120

doi:10.11106/cet.2015.8.1.117

A Case of Rhabdomyosarcoma Presenting a Rapidly Growing Thyroid Mass Showing Cytological Features Mimic Anaplastic Thyroid Carcinoma.

Young Ju JIN 1 ; Hyung Gu KIM ; Seong Keun KWON

Affiliations

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Keywords

Rhabdomyosarcoma; Anaplastic thyroid carcinoma

Country

Republic of Korea

Language

English

Abstract

This is a case of a 30-year-old man who was referred to our hospital for evaluation of a rapidly growing tumor in the left thyroid gland. It was palpated 2 weeks ago. But it was growing fast. A 4x3 cm mass was palpated in the left thyroid gland. Our impression was anaplastic thyroid carcinoma. Computed tomography finding indicated a thyroid malignant tumor and cytology result suggested spindle cell neoplasm. A lower anterior neck mass was resected and final histopathological result turns out to be a rhabdomyosarcoma (RMS). Although cervical RMS is very rare in adults, it has to be included for the differential diagnosis for the rapidly growing mass at thyroid gland.