Abstract Background Swelling of the perineal region in male dogs is most commonly caused by a perineal hernia. Clinical signs associated with perineal hernia are constipation. tenesmus or stranguria. This case report documents a rare cause of perineal swelling created by the growth of a malignant tumour leading to urethral obstruction and subsequent stranguria. https://atzytxiweh49s.blog-kids.com/35130847/a-novel-prediction-model-for-the-sales-cycle-of-second-hand-houses-based-on-the-hybrid-kernel-extreme-learning-machine-optimized-using-the-improved-crested-porcupine-optimizer