Correlation of Urinary Bladder Cancer with Stalk Observed on 3-Tesla MRI with Histopathological T Staging & Cystoscopic Findings: Comparison of Diffusion- & T2-Weighted Imaging in Stalk Detectability

Yoshimitsu Ohgiya¹, Jumpei Suyama¹, Syouei Sai¹, Masaaki Kawahara¹, Jirou Munechika¹, Makoto Saiki¹, Noritaka Seino¹, Masanori Hirose¹, Takehiko Gokan¹

The purpose of this study was to correlate urinary bladder cancer having a stalk observed on 3-Tesla MRI with histopathological T staging and cystoscopic findings and to compare T2-weighted imaging (T2WI) and diffusion-weighted imaging (DWI) in stalk detectability. All of tumors with a stalk on MRI were papillary tumors noted on cystscopy. Non-papillary tumors did not show stalks on MRI. Most of the bladder tumors with a stalk on 3-Tesla MR imaging were in T1 or lower pathologic stages. DWI had superior detectability in stalks of papillary bladder tumors to T2WI, particularly in tumors more than 10 mm.