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Nephrocalcinosis

Case 1 What does this x-ray of the kidney, ureter and bladder (KUB) show? What are the likely causes? What is the pathology behind medullary sponge kidneys (MSK)? What is the risk of urolithiasis with MSK? How are such patients...

Infections and inflammation: Part 3

See also Part 1 and Part 2 Case 1 You review a man in the Emergency Department with scrotal pain and sepsis. His clinical examination findings are shown. What does this image show? Who was this condition named after? What...

Nuptial night tragedy

Case 1 A fit and well 50-year-old gentleman presents to the emergency department with pain and swelling of his penis that started a few hours after he had a shower earlier in the day. On examination, the appearance is as...

Dietary citrate substitution in urolithiasis patients

Stone formation is dependent on supersaturation of urinary salts and urinary crystal retention. Urinary promoters (protein aggregates, cell debris) and inhibitors (citrate, magnesium, urinary macromolecules such as glycosaminoglycans and proteins) are involved in the process of stone formation [1]. Hypocitraturia...

Missed Meyer-Weigert duplex ureter during emergency ureteric stenting for ureteric stones

The Meyer-Weigert rule is a fundamental anatomical principle in urology that describes the typical orientation of ureteral orifices in duplex kidneys. In a duplex system, the upper pole ureter usually inserts inferomedially, while the lower pole ureter inserts superolaterally. This...

Priapism in sickle cell disease

What is sickle cell disease? Sickle cell disease (SCD) is one of the most common single-gene disorders in the UK affecting approximately one in every 2000 live births. Approximately 20-25 million people worldwide have SCD. It predominately affects those of...

The importance of second-look transurethral resection for superficial bladder cancer

This was a prospective study of 100 consecutive patients with a newly diagnosed superficial bladder tumour who underwent a second look transurethral resection of bladder tumour (TURBT) two to six weeks post initial resection. This essentially included pTa multiple and...

Medical statistics for urologists: part 2 – probability and hypothesis testing

Following on from Part 1 of this series (Part 3 available here), this article aims to build on other analytical techniques commonly used within medical research, focusing on simple examples. Probability and testing Before exploring hypothesis testing, it is vital...

Priapism

Priapism is defined as an abnormally persistent erection lasting greater than four hours, not associated with sexual desire [1]. Although relatively uncommon with an incidence of 1.5 per 100,000 [2], priapism has a risk of complications which can have a...

Is AS in SRM more convincing than in prostate cancer?

This article reviews active surveillance (AS) in the management of small renal masses (SRM), the role of renal tumour biopsy (RTB), patient selection, tumour growth kinetics, and outcomes. SRMs which are defined as masses ≤4 cm in diameter and enhance...

Urethroplasty: a review of indications, techniques and outcomes

Urethral stricture is the most common cause of lower urinary tract obstruction in men aged between 20 and 40, carrying an estimated overall prevalence of 0.5% in the UK [1] and results in around 17,000 hospital admissions annually [2]. Endoscopic...

LARP – three instrument techniques to reduce costs

The cost of laparoscopic radical prostatectomy (LARP) is high because of both the initial installation cost and, more importantly, high running costs. The main reason for the latter is the limited number of usage of the instruments; generally, each instrument...