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ALL / Dermatology
Shin lesions
Shin lesions
The differential diagnosis of shin lesions includes the following conditions:- erythema nodosum
- pretibial myxoedema
- pyoderma gangrenosum
- necrobiosis lipoidica diabeticorum
Below are the characteristic features:
Erythema nodosum
- symmetrical, erythematous, tender, nodules which heal without scarring
- most common causes are streptococcal infections, sarcoidosis, inflammatory bowel disease and drugs (penicillins, sulphonamides, oral contraceptive pill)
Pretibial myxoedema
- symmetrical, erythematous lesions seen in Graves' disease
- shiny, orange peel skin
Pyoderma gangrenosum
- initially small red papule
- later deep, red, necrotic ulcers with a violaceous border
- idiopathic in 50%, may also be seen in inflammatory bowel disease, connective tissue disorders and myeloproliferative disorders
Necrobiosis lipoidica diabeticorum
- shiny, painless areas of yellow/red skin typically on the shin of diabetics
- often associated with telangiectasia
+PassMedicine Notes
The differential diagnosis of shin lesions includes the following conditions:
- erythema nodosum
- pretibial myxoedema
- pyoderma gangrenosum
- necrobiosis lipoidica diabeticorum
Below are the characteristic features:
Erythema nodosum- symmetrical, erythematous, tender, nodules which heal without scarring
- most common causes are streptococcal infections, sarcoidosis, inflammatory bowel disease and drugs (penicillins, sulphonamides, oral contraceptive pill)
- symmetrical, erythematous lesions seen in Graves' disease
- shiny, orange peel skin
- initially small red papule
- later deep, red, necrotic ulcers with a violaceous border
- idiopathic in 50%, may also be seen in inflammatory bowel disease, connective tissue disorders and myeloproliferative disorders
- shiny, painless areas of yellow/red skin typically on the shin of diabetics
- often associated with telangiectasia