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Non-dilated obstructive uropathy (NDOU) is a condition of renal insufficiency characterized by functional kidney failure and inability of collective system to dilate because of several causes, e.g. hypotension, severe oliguria or dehydration. TUR-syndrome is a complication of bladder resection possibly leading to this condition through electrolytic disequilibrium after fluids reabsorption. We present the case of a patient with solitary kidney suffering from this uropathy regardless of mild electrolytic disorders and small bladder perforations. Prompt diagnosis and management with ureteral stent or nephrostomy tube are imperative in this setting.

Ketamine induced uropathy (KIU) is a urological condition increasing in prevalence, with similar symptoms to UTI, OAB syndrome or interstitial cystitis/bladder pain syndrome. We present the case of an 18-year old male who established severe LUTS and acute kidney injury due to KIU, in a short time-span of 6 months. Since cessation of ketamine is the cornerstone of treating KIU, correct and early diagnosis is essential. Physicians should therefore consider KIU as a differential diagnosis in storage LUTS, especially in younger patients with therapy-resistant LUTS.