Bladder cancer commonly causes focal or diffuse bladder wall thickening or an intraluminal mass, with potential invasion of the urethra, ureters, or surrounding tissues. Ultrasound provides excellent evaluation of bladder wall architecture and mass location. CT better assesses local invasion and metastatic disease. Radiographs are less sensitive. MRI is rarely used.

Prostatic cysts can compress adjacent structures, leading to urinary signs, pain, and sometimes bleeding. In male dogs, imaging typically focuses on localizing a cystic prostatic lesion and assessing concurrent inflammation. Ultrasound is the usual first-line modality, offering visualization of size and fluid characteristics. CT more clearly defines wall detail and surrounding invasion. Radiographs are supportive […]

Prostate cancer can cause prostatic enlargement, irregularity, mineralization, local invasion, and metastasis to regional lymph nodes, lungs, and bones. CT provides excellent evaluation of local invasion and metastatic disease. Ultrasound allows assessment of prostatic architecture and facilitates sampling. Radiographs may identify pulmonary or osseous metastases but are less sensitive. MRI provides detailed soft-tissue evaluation.