Erosions and ulcers

Some skin diseases are very prone to break down into sores. Surface sores are called erosions; these may start off as blisters or pustules. Full thickness sores are ulcers.

Ulcers on lower leg
Insect bites and stings Stasis/varicose/venous ulcers
Pressure ulcers
Hypertensive leg ulcers
Arteriosclerotic ulcers
Neuropathic ulcers eg diabetic
Ulcerating skin cancers (BCC, SCC, Melanoma)
Vasculitic ulcers e.g. cutaneous polyarteritis nodosa
Pyoderma gangrenosum
Tropical ulcer
Granulomatosis with polyangiitis

Ulcers due to picking
Dermatitis artefacta
Compulsive skin picking
Trigeminal trophic syndrome
Delusions of parasitosis
Morgellons disease

Ulcers on limbs &/or trunk
Bacterial, viral or fungal infections in immune suppressed
Mycosis fungoides
Spider bites
Atypical mycobacterial infections
Genital conditions
Porphyria cutanea tarda
Erythropoeitic protoporphyria
Wounds in general

Ulcers on head and neck
Chondrodermatitis nodularis helicis (ear)
Erosive pustular dermatosis (scalp)
Aphthous ulcers (mouth and genitals)
Aplasia cutis (scalp)
Trigeminal trophic syndrome (nostril)
Ulcerating skin cancers (BCC, SCC, Melanoma)

Blistering skin diseases
Erosive lichen planus
Stevens-Johnson / toxic epidermal necrolysis
Staph. scalded skin syndrome

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