Pictorial case study: Clubbing

A 64-year-old man presented complaining of a persistent cough for several weeks. He felt generally lethargic. He was fairly well and was on no medication, although he had suffered from recurring respiratory infections during the winter months.

Clubbing 

He smoked 20 cigarettes daily and had done so since the age of 15 years.

Examination of his chest was unremarkable, but there was an increase in the soft tissue of the distal part of his fingers.

He was prescribed antibiotics for his cough and a chest X-ray was requested.

Diagnosis and management

The diagnosis is clubbing. There is initially an increase in the vascularity of the nail bed resulting in an increase in soft tissue of the nail bed. The finger tip becomes spongy.

As it advances, there is loss of angle at the base of the nail and an increase in its curvature transversely, until the whole finger tip becomes clubbed and the overlying skin stretches, taking on a polished appearance. The mechanism of clubbing is unknown and because it is painless, the patient is usually unaware of the changes. Clubbing is an important sign because it may indicate a serious underlying condition. It is associated with cyanotic heart conditions, with liver cirrhosis, with lung conditions including carcinoma and chronic septic conditions such as lung abscess or bronchiectasis, and with gastrointestinal conditions such as Crohnis disease and coeliac disease. There is no treatment for clubbing.

In this case, the chest X-ray revealed a tumour of the lung.

Possible differential diagnoses

Idiopathic

  • Hereditary.
  • Constitutional.
  • Hypertrophic osteoarthropathy.

Differential diagnosis

Hypertrophic osteoarthropathy

  • Chronic proliferative periostitis of the long bones.
  • Digital clubbing.
  • Joint swelling.

- Contributed by Dr Gwen Lewis, a GP in Windsor, Berkshire

Have you registered with us yet?

Register now to enjoy more articles and free email bulletins

Register

Already registered?

Sign in

Follow Us:

Just published

UK COVID-19 vaccination programme tracker

UK COVID-19 vaccination programme tracker

GPs across the UK are playing a leading role in the largest-ever NHS vaccination...

Pension tax solution for judges shows government could do more for doctors, says BMA

Pension tax solution for judges shows government could do more for doctors, says BMA

Government plans to 'effectively exempt judges from pension tax' show the government...

Second-phase COVID-19 vaccine rollout maintains prioritisation by age

Second-phase COVID-19 vaccine rollout maintains prioritisation by age

The Joint Committee on Vaccination and Immunisation (JCVI) has published advice on...

PCNs paid £70m for first-wave COVID-19 jab campaign as NHS plots next phase of rollout

PCNs paid £70m for first-wave COVID-19 jab campaign as NHS plots next phase of rollout

Primary care network (PCN) COVID-19 vaccination sites have been paid £70m this month...

London GP personally calling at-risk patients to boost COVID-19 vaccine uptake

London GP personally calling at-risk patients to boost COVID-19 vaccine uptake

London GP Dr Farzana Hussain is personally telephoning scores of patients who have...

Half of patients with possible cancer symptoms avoided contacting GP in first wave

Half of patients with possible cancer symptoms avoided contacting GP in first wave

Almost half of people who experienced potential cancer symptoms in the first wave...