skin diseases, necrobiosis lipoides, granuloma etc

necrobiosis lipoidica (diabeticorum)
- affects both diabetic and non-diabetic pts
- predominantly lower extremities
- mostly cosmetic disease of unknown aetiology but skin cancer may evolve in the place of

granuloma annulare
- benign, self limited
- localised, generalized, subcutaneous
- mainly head neck, upper extremities,
- mainly children, young adults


granuloma pyogenes /a misnomer as it is a benign tumour - no granuloma, not pyogenic/
- benign tumour
- mainly children
- mainly head, oral mucosa, may be


bullous disease of diabetes
- bullae appearing predominantly on lower extremities
- in DM lower treshold for suction-induced blister formation

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