Kangri cancer is a type of squamous-cell carcinoma of the skin. It is found only in Kashmir in the northwest of the Indian subcontinent. It occurs on the lower abdomen and inner thighs and is due to the use of a kangri - a baked clay pot weaved around with wicker-work, used as a source for warmth by people in Kashmir during cold weather. The condition was described in 1881 by surgeons at the Kashmir Mission Hospital and its cause was recognized in the early 20th century as described by Arthur Neve.
Despite current knowledge of the cause of this condition cases are still being reported.
Other conditions associated with prolonged use of the kangri in this fashion include erythema ab igne - a reticulate hypermelanosis with erythema.
References
Kangri cancer Wikipedia(Text) CC BY-SA