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I welcome interesting clinical cases you think might fit here, or any suggestions for subjects you would like to hear more about.


Can the HPV vaccine treat verrucae and warts (2025 Update)?
Can the HPV vaccine really treat warts and verrucae? This blog investigates.

Ivan Bristow
5 days ago4 min read
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Melanonychia: visually differentiating the good from bad
What is Melanonychia? Melanonychia, a term derived from the Greek "Melas" (meaning black or brown) and "Onyx" (meaning nail), describes...

Ivan Bristow
Jul 314 min read
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Acral lentiginous melanoma - improving detection on the foot
How can we improve detection of acral lentiginous melanoma on the foot? This blog looks at the evidence and suggests practical methods that can be implemented in clinic.

Ivan Bristow
Jun 210 min read
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Podiatrists spotting melanoma - does it happen?
What does the literature say about podiatrists ability to spot a melanoma?

Ivan Bristow
Aug 6, 20244 min read
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Is sunlight really good for you?
For some time now I have been following the work of dermatologist, Dr Richard Weller from the University of Edinburgh. His research is...

Ivan Bristow
Jun 10, 20245 min read
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May is melanoma awareness month!
May is melanoma month. In this blog are links to my published papers on melanoma and the foot.

Ivan Bristow
May 13, 20243 min read
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Non-visibility of a melanoma to patients leads to later detection
Spotting a melanoma earlier can lead to an improved outcome however, lesions which aren't so visible may take longer to be diagnosed.

Ivan Bristow
Jan 25, 20243 min read
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Friction – a cause of melanonychia
Brown stripes in the toenails (melanonychia) are a cause of concern, but often they have simple causes like friction as this blog explores.

Ivan Bristow
Dec 19, 20233 min read
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Does trauma cause melanoma on the foot?
This blog explores the hypothesis that trauma can cause melanoma on the feet.

Michelle Reynolds
Oct 31, 20236 min read
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Melanoma in situ - not well understood
Melanoma in situ is a skin cancer which has not become invasive. What does it mean?

Ivan Bristow
Aug 9, 20233 min read
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Dermoscopy & acral melanoma. Keep it BRAAF please.
Acral melanoma is something which worries every podiatrist – a rare malignancy but one not to be missed as timely diagnosis can reduce...

Ivan Bristow
May 5, 20233 min read
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Skin metastases from internal tumours
Cutaneous metastases are the secondary spread of cancers, but how often do internal cancers spread to the skin?

Ivan Bristow
Nov 8, 20223 min read
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Book: Diagnostic Dermoscopy 2E – A great update
A review of the second edition Dr. Jonathan Bowling's award winning book "Diagnostic Dermoscopy".

Ivan Bristow
Jul 26, 20223 min read
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Clubbing of the nails
This blog explores the phenomenon of nail clubbing and its cause.

Ivan Bristow
Jul 5, 20225 min read
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What are the common pedal skin tumours?
This blog reviews a recent paper reporting the profile of 802 excised tumours from the foot.

Ivan Bristow
Mar 25, 20224 min read
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The mystery of moles
This article discusses how mole numbers on the skin vary with age.

Ivan Bristow
Nov 1, 20213 min read
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Benign or Malignant? Look for clues.
Simple tips to help discern if a lesion might be benign or malignant.

Ivan Bristow
May 17, 20214 min read
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Merkel Cell Carcinoma - rare but rising
Merkel Cell Carcinoma is a rare but increasingly common, malignant skin tumour. This blog looks at its presentation and treatment.

Ivan Bristow
Mar 9, 20213 min read
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