Plantar foot lump

[Jonathan Wride]

Hi Steve,

Just had a patient in 4 week history of plantar forefoot lump that occurred after walking barefoot. Small palpable pea sized region. Non-compressible. No vascularity and well defined. No sign of foreign body or entry site. Looks like a small cyst in the plantar fat layer. Have you seen this before what would you term it as?

I have attached pictures. Thanks.

Jon

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[Jonathan Wride]

doing some further research looks like an epidermoid inclusion cyst! would make sense with the history of plantar foot trauma.

[Stephen Bird]

Yes, that is a reasonable first option diagnosis given the history.

A foreign body that has entered and then retreated is another possibility,

Another option is a localised area of fat pad trauma / haematoma.

It doesn’t look like a plantar wart as it is a little deep and they are also usually very vascular with a central pedicle feeding artery.

So I think you have the best option.

Nice work,

Steve.

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