AUTHOR=Huang Shunyi , Liu Cenwen , Zeng Xueying , Huang Zihan , Lin Feng , Chen Yongyuan , Zhuo Guanxiang , Mei Yunyun , Guan Qing TITLE=Intrathyroidal thymic carcinoma initially suspected as a parathyroid tumor: a case report and literature review JOURNAL=Frontiers in Oncology VOLUME=Volume 15 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1714302 DOI=10.3389/fonc.2025.1714302 ISSN=2234-943X ABSTRACT=Intrathyroidal thymic carcinoma (ITTC) is a rare malignant tumor that presents significant diagnostic and therapeutic challenges. Herein, we present the case of a 35-year-old woman with a right neck mass initially suspected to originate from the parathyroid but ultimately diagnosed as ITTC. This case illustrates the non-specific clinical manifestations of ITTC, the associated diagnostic difficulties, and emphasizes the essential role of pathological examination in diagnosis and guiding management.