Fig. 1

6 year-old entire male Spinone Italiano dog with pedunculated round shaped mass, located at the level of the bladder apex, staged with gray-scale ultrasound and CEUS. a- Conventional B-mode sonography shows the bladder mass with homogeneous echo pattern and interruption of hyperechoic bladder wall by less echogenic tumor tissue. b – Colour Doppler shows the presence of discrete vascular poles within the mass. c - CEUS image shows the avid homogenous enhancement of tumour tissue and the loss of bladder wall hypoenhancing muscular layer at base of tumor due to the appearance of hyperenhancing tumor tissue (T). In the normal wall bladder (WB) adjacent to the tumour the submucosal and serous hyperenhancing lines and the hypoenhancing muscular layer were preserved