A case of urinary frequency and urgency

A middle-aged woman is seen in nephrology clinic for recurrent nephrolithiasis. She was previously advised to drink plenty of water but thinks she is probably drinking ‘too much’ because she […]

Short story of a complex renal cyst

We have previously discussed about distinguishing between autosomal dominant polycystic kidney disease and acquired cystic kidney disease (ACKD). Chronic kidney disease (particularly dialysis-requiring) is frequently associated with the development of […]

A curious case of a large renal cyst

Here is an image of the right kidney obtained from an end-stage kidney disease patient. At first glance, it appears as expected: thin parenchyma, prominent peri-renal fat as you would […]

Incidental fluid seen during kidney biopsy

In a twitter poll asking what the asterisk indicated, only ~55% of the respondents (total 338 votes) answered correctly. This is an image of the left kidney obtained from the […]

Renal allograft and ascites

While evaluating a transplanted kidney, we should pay particular attention to the surgical anatomy, presence of ureteral stent, and perinephric collections in addition to ruling out hydronephrosis. Below are examples […]

IVC and the right pleural effusion

In a twitter poll asking what the arrow was pointing to in this image, only ~54% answered correctly. The correct answer is right pleural effusion. Below illustration explains why the […]