What is erythema Induratum?

Erythema induratum (EI) is an uncommon inflammatory disorder with alterations centered upon the subcutaneous fat tissue (panniculitis).

Is erythema nodosum the same as panniculitis?

Erythema nodosum is a type of panniculitis that affects subcutaneous fat in the skin, usually first evident as an outcropping of erythematous nodules that are highly sensitive to touch.

What causes erythema Induratum?

Infection with M tuberculosis is considered to be an etiologic factor for erythema induratum that is associated with tuberculosis (Bazin disease), and, based on published reports, latent or active TB infection is the most common reported identifiable cause of erythema induratum.

What kind of skin disease is erythema nodosum?

Erythema nodosum is a type of panniculitis that affects subcutaneous fat in the skin, usually first evident as an outcropping of erythematous nodules that are highly sensitive to touch. 1 Most…

What is the relationship between erythema nodosum and Nodular vasculitis?

Erythema induratum (nodular vasculitis) is a related but distinctly different clinicopathologic reaction pattern of the subcutaneous fat. It is classically caused by an antigenic stimulus from Mycobacterium tuberculosis but may be associated with several other underlying disorders.

What makes a nodosum lesion look like a bruise?

Erythema contusiforme, when a subcutaneous hemorrhage (bleeding under the skin) occurs with an erythema nodosum lesion, causing the lesion to look like a contusion (bruise)

When does erythema nodosum on the shins resolve?

Erythema nodosum (EN), is an inflammatory condition characterized by inflammation of the fat cells under the skin, resulting in tender red nodules or lumps that are usually seen on both shins. It can be caused by a variety of conditions, and typically resolves spontaneously within 30 days. It is common in young people between 12–20 years of age.