Erythema induratum
| Erythema induratum | |
|---|---|
| File:An introduction to dermatology (1905) erythema induratum 2.jpg
Erythema induratum
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| Classification and external resources | |
| Specialty | Lua error in Module:Wikidata at line 446: attempt to index field 'wikibase' (a nil value). |
| ICD-10 | A18.4 (ILDS A18.482) |
| ICD-9-CM | 017.1 |
| DiseasesDB | 1272 |
| eMedicine | derm/135 |
| Patient UK | Erythema induratum |
| 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.
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
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An introduction to dermatology (1905) erythema induratum.jpg
References
- ↑ "erythema induratum" at Dorland's Medical Dictionary[dead link]
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ synd/102 at Who Named It?
- ↑ 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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