RT Journal Article SR Electronic T1 [18F]FDG PET/CT in Metastatic Extragonadal Choriocarcinoma JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP jnmt.124.268758 DO 10.2967/jnmt.124.268758 A1 P, Ralph Emerson A1 Patro, Sai Sradha A1 Singh, Parneet A1 Parida, Girish Kumar A1 Agrawal, Kanhaiyalal A1 Mishra, Saurav Kumar YR 2025 UL http://tech.snmjournals.org/content/early/2025/01/15/jnmt.124.268758.abstract AB Extragonadal choriocarcinoma in men is an extremely rare and highly aggressive malignancy. Inconclusive biopsies due to a high necrotic component often delay diagnosis. Here is such a case, in which suggestive imaging findings on [18F]FDG PET/CT, a raised level of serum β-human chorionic gonadotropin, and gynecomastia clinched the diagnosis.