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GP beware - urology

In the first of a new series, urologists Professor Abhay Rane and Mr James Henderson outline three cases with a misleading presentation.

Case 1

Mr P is 70 years old and has a BMI of 35. He has a history of ischaemic heart disease, hypertension and is a smoker. The GP is called to see him because he is complaining of a sudden-onset, severe, right-loin-to-groin pain.

He is rolling about the bed unable to get comfortable, and examination is difficult. The GP diagnoses renal colic, administers rectal diclofenac and arranges to phone in one hour to check on progress. Before then, the patient deteriorates and his wife calls an ambulance. At A&E, he is diagnosed with a ruptured abdominal aortic aneurysm and transferred to surgery.

GP’s diagnosis

Renal colic.

Actual diagnosis

Leaking abdominal aortic aneurysm.

Clues

The patient was older than average for a case of renal colic and was known to be an arteriopath.

Take-home message

Severe back or loin pain in an older arteriopath is a leaking aneurysm until proven otherwise.

Case 2

Mr H, a 73-year-old former smoker, presents with a three-month history of deteriorating urinary symptoms – variable urinary flow, frequency and nocturia. Abdominal examination is unremarkable. Digital rectal examination (DRE) reveals a moderately enlarged, benign-feeling prostate. The GP counsels the patient and organises a PSA test. Tamsulosin is prescribed and the patient is asked to return in three months. After four weeks there is no improvement. Mr H is referred to urology and found to have non-visible haematuria. Flexible cystoscopy shows velvety erythematous areas on the trigone of the bladder. General anaesthetic cystoscopy confirms carcinoma and he is started on intravesical BCG.

GP’s diagnosis

Lower urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia.

Actual diagnosis

Carcinoma in situ of the bladder.

Clues

Approximately 20% of patients with bladder cancer or carcinoma in situ have irritative voiding symptoms. Visible or non-visible haematuria will be a feature in the vast majority.

Take-home message

All patients presenting with LUTS should have urinalysis.

Case 3

Mr M is a 65-year-old construction worker with a history of hypertension. He presents with a four-week history of constant lower back pain, and thinks it may have started after lifting masonry, but cannot be sure. It is stopping him sleeping and affecting his ability to work. Neurological examination is normal, as is his straight leg raise. He has significant paravertebral tenderness and muscular spasm, so he is diagnosed with mechanical back pain, given NSAIDs and antispasmodics, and told to rest.

Initially, the analgesics help and he returns to work. Six weeks later his legs ‘give way’. In hospital, an MRI finds multiple metastatic deposits in his spine, causing cord compression. His PSA is >1000 and he has a hard nodular prostate on DRE. He is started on steroids and urgently seen by oncology.

GP’s diagnosis

Mechanical lower back pain.

Actual diagnosis

Metastatic carcinoma of the prostate leading to spinal cord compression.

Clues

The age of the patient and nature of the pain should make you consider other differentials. Although there is weak evidence to support traditional ‘red flag’ symptoms prompting investigation1, each case should be evaluated on its merits and repeat examination considered.

Take-home message

In older men with unexplained lower back pain, assess the prostate.

 

Professor Abhay Rane is a consultant urological surgeon at Surrey and Sussex Healthcare NHS Trust

Mr James Henderson is a specialty doctor in urology at Surrey and Sussex Healthcare NHS Trust

 

References

  1. Underwood M, Buchbinder R. Red flags for back pain. BMJ, 2013;347:f7432

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Readers' comments (11)

  • Useful.Let's have more of these GP aware articles.

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  • A really good reminder. Thank you for taking the time to write this article.

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  • Many thanks - this is just what I need.

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  • Very useful & helpful article.

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  • Good article. However, try getting Case 1 seen by the surgeons on-call at the moment and get a torrent of abuse. All I can say is everyone is under stress at the moment but some of the conversations I've had with hospital folk have bordered on 'GMC-able'

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  • Very useful article thank you.

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  • Excellent article.

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  • Thank you very useful and eye opening article.

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  • very useful.

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  • Excellent

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