The vast majority of the<unk> s occur below the knee, usually around the ankle. They may also occur on arms. They are often initiated by minor trauma, and subjects with poor nutrition are at higher risk. Once developed, the ulcer may become chronic and stable, but also it can run a destructive course with deep tissue invasion, osteitis, and risk of amputation. Unlike Buruli ulcer,<unk> s are very painful. Lesions begin with inflammatory papules that progress into vesicles and rupture with the formation of an ulcer. Chronic ulcers involve larger area and may eventually develop into squamous epithelioma after 10 years or more. Complications * Skin color: Rarely, Jungle rot will result in complications with skin pigmentation. It has been known to leave the victim with different colors such as bright red, blue, green, and a rare color change of orange. * Deep tissue invasion - Infection may spread deep to the subcutaneous tissue, but rarely involve the bone * Chronic ulceration - characterised by thick rim of fibrous tissue around the ulcer edges * Recurrent ulceration - most commonly in children * Squamous cell carcinoma - may develop at the rate of 2 to 15% of the chronic ulcers that persists for more than three years * Tetanus: by entry of tetanus bacilli through the ulcer.
Tropical ulcer
Callous ulcer
Kangri ulcer
Stercoral ulcer
Cushing ulcer
Mouth ulcer
Buruli ulcer
Lipschütz ulcer