We present the case of a 37-year-old lady who presented with severe colicky left sided flank pain associated with vomiting, chills and rigors. A non-contrast Computed Tomography of the Kidney Ureter and Bladder was performed which showed a 2–3 mm stone in the pelvic part of the left ureter. Following 2 days of conservative treatment she was still complaining of increasingly severe pain. A contrast computed tomography of the abdomen was performed which was suggestive of a perforation of the left collecting system. A diagnosis of spontaneous left proximal ureteric perforation secondary to urolithiasis was made. We opted to treat her with retrograde endoscopic ureteric stent insertion. Spontaneous rupture of the ureter is a relatively rare urological occurrence with only a small number of cases reported in the literature. Although there are no recommendations, ureteric double-J stenting is the most commonly used management option with good results reported.

Bacillus Calmette-Guerin (BCG) immunotherapy is a mainstay of adjunctive therapy for non-muscle-invasive bladder cancer. The instillation of BCG in the upper urinary tract after complete tumour eradication has also been studied and used after kidney-sparing management. It is effective in increasing the length of remission. However, it is also associated with rare but severe local and systemic side effects which may potentially become life-threatening. We present a case report of a 37-year-old gentleman who developed BCGosis following intra-renal instillation of BCG immunotherapy. The patient presented with systemic symptoms of jaundice, fever, myalgia and arthralgia, rather than local symptoms. Mycobacterium bovis infection was confirmed on blood cultures. The patient also developed hepatosplenomegaly, dyspnoea and pancytopaenia. BCGosis following intravesical instillation has been well documented in literature; to the best of our knowledge, this is the first case report documenting BCGosis following intra-renal instillation.

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We present the case of a 66-year-old male with a history of iatrogenic bladder injury and radiation therapy for colon adenocarcinoma 20 years prior. A computed tomography of the thorax, abdomen and pelvis, reported a presacral mass with invasion to the bladder, ureters and lymph nodes. An initial bladder biopsy was histologically inconclusive. A later biopsy taken during emergency bypass surgery for small bowel obstruction, while the patient was positive for coronavirus disease of 2019, concluded that the mass was a peritoneal mesothelioma of epithelioid origin. The combination management of cytoreductive surgery with intraperitoneal chemotherapy has been a near universal standard of care for epithelioid peritoneal mesothelioma provided that the patient is an appropriate candidate for surgical interventions. To the best of our knowledge, this is the first case report of malignant peritoneal mesothelioma as a second primary carcinoma, many years after exposure to radiation therapy for colon adenocarcinoma.