Erythema induratum

What is Erythema induratum?

Recurrent hard subcutaneous nodules that frequently break down and form necrotic ulcers, usually on the calves and less frequently on the thighs or arms of middle-aged women; they are associated with erythrocyanotic changes in cold weather; although microscopically granulomatous and necrotizing, the lesions are sterile; but tuberculin skin tests are usually positive and polymerase chain reaction amplification is frequently positive for Mycobacterium tuberculosis complex DNA.

Questions and answers on "Erythema induratum"

My wife has several small lumps in her right calf ( and a couple in her left). They are extremely painful and even gently rubbing her calf with...

doctor1 MD

Thanks for posting your query.
Your wife has a history of diabetes and these lumps can be due to boils or infected hair follicles which are...

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A red spot appeared under the skin 3 days ago on inside leg calf. It has gotten larger with what looks like an eruption with some rough scaling. It...

doctor1 MD

Dear Christy
The above the complaints of yours appear to be unrelated.
The red eruptions on calf appears can be either panniculitis or erythema...

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My husbands cheek suddenly sunk like a finger was pushing it in and looks dark or bruised. Dentist found nothing dental about it but does see a...

doctor1 MD

Hi there.
I read your history & note the issue at hand.
It could just be a condition called erythema induratum or a hematoma arising out of a...

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