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Doctor insights on: Erythema Nodosum Lupus

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I have the bruises on my legs that resemble erythema nodosum and I tested negative for sarcoidosis. Should I still have a biopsy to rule out erythema and possibly answer the question of what exactly is wrong with me? I've been tested for lupus and tb. Bo

I have the bruises on my legs that resemble erythema nodosum and I tested negative for sarcoidosis. Should I still have a biopsy to rule out erythema and possibly answer the question of what exactly is wrong with me?  I've been tested for lupus and tb. Bo

Easy does it: As often as not, erythema nodosum appears for no reason whatever and goes away after a while. If you feel well otherwise, and are hepatitis c negative, and it was not precipitated by medication, and your physician is okay with just watching it for a few weeks, that's probably fine. ...Read more

Dr. Milroy Samuel
31 doctors shared insights

Erythema Nodosum (Definition)

A painful disorder characterized by tender bumps (nodules) under the skin, ...Read more


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Can erythema nodosum be mistaken for folliculitis?

Can erythema nodosum be mistaken for folliculitis?

Not really: Erythema nodosum is a reddened, tender nodule 1-5 inches with no pus, fluctuance or drainage. Folliculitis is an infected hair follicle that may progress to a small pusutle or an abscess. ...Read more

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Is it normal to not have symptoms of erythema nodosum but still have it?

ERYTHEMA NODOSUM: SYMPTOMS OF THIS DISORDER ARE PAIN AND TENDERNESS. WHO MADE THE DIAGNOSIS? WAS A BIOPSY TAKEN? IF YOU HAVENT SEEN A DERMATOLOGIST YET, PLEASE SEE ONE! ...Read more

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Can you tell me anything about erythema nodosum or panniculitis?

Big range: Both of these are skin conditions and the severity can range from "not too bad" to "need a big operation". The treating physician is the best person to answer specific concerns because of the many variables that come into play. ...Read more

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Erythema nodosum occurs as a symptom of infections such as histoplasmosis?

Erythema nodosum occurs as a symptom of infections such as histoplasmosis?

Association: Erythema nodosum (en) is an inflammatory disorder that involves tender nodules under the skin. It is associated with many systemic conditions including infections with streptococcus, chllamydia, coccidiodomycosis, hepatitis b, tuberculosis, and histoplasmosis. Also, sensitivity to certain medications are linked to en, including antibiotics and birth control pills. ...Read more

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I have erythema nodosum on both right and left legs. I don't know what it is from. I have two cats. Could they have caused it?

Erythema Nodosum: In about half of cases, the exact cause of erythema nodosum is unknown. Some cases may occur with: infections. Some of the more common ones are: streptococcus (most common) cat scratch disease chlamydia coccidioidomycosis hepatitis b histoplasmosis leptospirosis mononucleosis (ebv) mycobacteria mycoplasma psittacosis syphilis tuberculosis tularemia yersinia pregnancy. ...Read more

Dr. Payam Mehranpour
204 doctors shared insights

Skin Redness (Definition)

Skin redness is a common symptom of inflammation or ...Read more


Red Skin (Definition)

= erythema of the outermost layer of ...Read more