A Rare Case of Primary Squamous Cell Urachal Carcinoma Staged with 18F-FDG PET/CT. - Gramatikov, Yavor; Stoychev, Alexander; Gaydarov, Georgi; Andreev, Stamen; Halachev, Nikolay; Hadzhiyska, Valeria (Molecular Imaging & Radionuclide Therapy, 2026)