Which of these four feet shows tinea?
Answers:
A = This is allergic contact dermatitis – symmetrical and bilateral, affecting the soles. It was due to allergy to azo dyes present on the insole for his shoes.
B = This is bullous tinea pedis – some dermatophyte fungi can be severe enough to produce blistering, especially Trichophyton mentagrophytes
C = This is palmoplantar pustular psoriasis pustular psoriasis – note the pustules and the conspicuous rusty red dots typical of this condition.
D = This is plaque psoriasis of the soles – note the well-defined edge. Full skin examination may show typical psoriasis elsewhere (elbows, knees, scalp, nails).
If there is even the slightest suspicion of tinea, take scrapings!
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Comments
16 July 26
Satish
Nice case
16 July 26
Dr Paul
REally good selection for ongoing learning
16 July 26
Vik
Good clinical examples. Thank you for providing valued derm education.
15 July 26
Shabbir
Correct answer to be B was a surprise, I did not think that a bullous lesion be caused by Tenia
15 July 26
Barry
The answer for A was a bit harsh with showing only one foot.
Great cases though. I have never seen bullous tinea pedis [I think]
15 July 26
Patrick
Interesting! I initially ruled out B.
15 July 26
Ben
Thanks, without KOH I may have missed it
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