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Erectile Dysfunction Part I: pathophysiology and risk factors

Introduction Erectile dysfunction (ED) is defined as the inability to achieve and maintain a penile erection, which is adequate for satisfactory sexual intercourse. The Massachusetts Male Ageing Study (MMAS) reported the results of a regional survey of men aged 40–69...

Pyonephrosis: is the kidney always doomed?

Pyonephrosis (Greek pyon ‘pus’ + nephros ‘kidney’) is defined in Campbell-Walsh Urology [1] as an infected hydro-nephrosis associated with suppurative destruction of the renal parenchyma which results in total or near total loss of renal function. The true incidence of...

Kidney stones in pregnancy

Urolithiasis related complications are estimated to affect between 1:200 and 1:2000 pregnancies [1,2]. With around 825,000 conceptions in England and Wales in 2021 [3], this represents an uncommon but not rare occurrence. What is normally a straightforward pathway for a...

A negative ureteroscopy for stone disease: is it acceptable and is it avoidable?

Urinary tract stone disease and the consequent demand for endoscopic intervention in the upper urinary tract is an increasing phenomenon [1]. Although ureteroscopy is generally considered to be associated with low morbidity [2], risks do exist. Recognised complications include urothelial...

Testicular microlithiasis

Introduction Testicular microlithiasis (TML) was originally described in 1970 in a healthy four-year-old boy [1] and the first paper regarding microlithiasis as an entity seen on ultrasound was published in 1987 [2]. Testicular microlithiasis is seen on ultrasound as small,...

Imaging of varicoceles

A varicocele is a collection of dilated, tortuous spermatic veins of the pampiniform venous plexus. It is seen in 10-15% of the general population and is associated with both primary and secondary infertility. A varicocele is the most common cause...

Retroperitoneal fibrosis

Introduction Retroperitoneal fibrosis (RPF) is a condition that occurs when extensive fibrosis develops in the retroperitoneum, usually centred over the anterior aspect of the fourth and fifth lumbar vertebrae. The fibrotic tissue typically surrounds the infrarenal aorta, inferior vena cava...

Bladder carcinoma MRI

Bladder malignancy is one of the commonest malignancies of the renal tract, accounting for approximately 6% of male malignancy and 2% of female malignancy. The incidence increases with patient age with 70% of patients being over the age of 65...

Molecular biology – bladder cancer

Background Bladder cancer is the most common cancer of the urinary tract and approximately 90% of bladder cancers diagnosed in North America and Europe are transitional cell carcinomas (TCC). For the purposes of diagnosis and treatment, bladder cancer is often...