Department of Internal Medicine, Royal Bahrain Hospital, Bahrain
Case Report
Non-dilated obstructive uropathy
Author(s): Issa Kawalit*, Muhand Eltwal, Erfai Emtair, Rama Nakdali and Laith Al-Rabadi
Recent Urinary tract obstruction leading to acute kidney injury (AKI)
is commonly associated with hydro ureter and hydro nephrosis,
often accompanied by oliguria. AKI and the syndrome of Non-
Dilated Obstructive Uropathy (NDOU) is well reported, however, it
is not common, accounting for less than 4% of obstructive uropathy
cases. Our recent experience with two cases of NDOU seen within
the span of six months may imply otherwise. We present two cases
of obstructive uropathy without sonographic features of obstructive
uropathy with acute renal failure. Two elderly male patients
presented at Royal Bahrain Hospital Nephrology Centre with an
acute rise in serum creatinine, without active urinary sediment or
proteinuria. Imaging studies showed normal size kidneys without
hydronephrotic changes. Initially, they were diagnosed with prerenal
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