Ouch!!!feels like I have a splinter in my foot!

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If I might assume, for purpose of discussion, that the podiatrist's diagnosis was correct, it sounds like he/she was talking about a porokeratosis, which, although in my experience is not really a blocked sweat gland as the term suggests, and is more commonly known as a seed corn (except for an impressive diagnosis, maybe for insurance purposes), which is a small keratosis of often unknown specific etiology but possibly from some sort of physical irritant. If my supposition is correct, I would have to opine that having a MRI for such a condition would be, in my view, perhaps treating one's pocketbook or that of one's insurer rather than one's foot. But, of course, I can only make a supposition, based entirely on your podiatrist's stated diagnosis. If indeed it is a seed corn, it may be difficult to permanently eradicate, but general palliative treatment often calls for non-surgical trimming of the keratosis and perhaps the application of a chemical caustic to retard regrowth. Surgical removal can be attempted by curettage, but the keratosis often returns. Full thickness removals with semi-elliptical incisions and sutures has the disadvantage of leaving a fibrous scar, which, on the plantar surface, may be as painful or more-so than then original lesion. That is not to say that successful permanent resolutions are not possible, but they are unpredictable. Shallow foreign bodies of which you voice suspicion, when they are not spontaneously expelled by the body, are often walled off by the body in what is then termed an inclusion cyst, which, in my experience, have a better chance of successful permanent surgical removal. But I cannot make it any more clear to you that I do not have the opportunity to examine your foot and thus everything I have mentioned is mere supposition and should not be consider a diagnosis which might be acted upon.

 

This is by far, one of the most well written responses I have ever read. You put a smile on my face