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Erythema induratum

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Title: Erythema induratum  
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Subject: List of MeSH codes (C17), Panniculitis, List of MeSH codes (C01), Prosector's wart, List of cutaneous conditions
Collection: Mycobacterium-Related Cutaneous Conditions
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Erythema induratum

Erythema induratum
Erythema induratum
Classification and external resources
ICD-10 A18.4 (ILDS A18.482)
ICD-9-CM 017.1
DiseasesDB 1272
eMedicine derm/135
MeSH D004891

Bazin disease (or "Erythema induratum") is a panniculitis on the back of the calves.[1]

It was formerly thought to be a reaction to the tuberculum bacillus. It is now considered a panniculitis that is not associated with a single defined pathogen.[2]

It occurs mainly in women, but is very rare now.

Contents

  • Pathophysiology 1
  • Eponym 2
  • Additional images 3
  • References 4
  • External links 5

Pathophysiology

Predisposing factors include abnormal amount of subcutaneous fat, thick ankles and abnormally poor arterial supply. Abnormal arterial supply causes low-grade ischemia of ankle region. The ankle skin becomes sensitive to temperature changes. When weather is cold, ankle is cold, blue and often tender. In hot weather, ankle becomes hot, edematous, swollen and painful. Chilblains may be present. On palpation, small superficial and painful nodules are felt. They break down to form small and multiple ulcers. Fresh crops of nodules appear in periphery of ulcer and ultimately break down. In nodular stage, pain is present; while it subsides in ulcerative stage.[3]

Eponym

It is named for Pierre-Antoine-Ernest Bazin.[4][5]

Additional images

References

  1. ^ "erythema induratum" at Dorland's Medical Dictionary
  2. ^ Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease (7th ed.). St. Louis, Mo: Elsevier Saunders. p. 1265.  
  3. ^ Manual of Surgery. Kaplan Publishing. p. 72.  
  4. ^ synd/102 at Who Named It?
  5. ^ P. A. E. Bazin. Leçons théoriques et cliniques sur la scrofule, considérée en ellemême et dans ses rapports avec la syphilis, la dartre et l'arthritis. 2nd edition, Paris, 1861. Page 145 and 501.

External links


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