Chronic Arsenicosis: Cases from a Nonendemic Area of South Rajasthan.

Two adult patients from a village of district Bhilwara, Rajasthan, consulted Skin Department of R. N. T. Medical College and Hospital, Udaipur, with complaints of thickening of the palms and soles and pigmentation of skin with a nonhealing ulcer on the palm. They also had complaints of loss of appetite, abdominal pain, nausea, vomiting, and loose motion. On examination, there were multiple 2-3 mm, keratotic papules on the palms, and soles on the background of diffuse keratoderma. Two irregular nonhealing ulcers were present on the hands which on excisional biopsy revealed squamous cell carcinoma. A generalized mottled pigmentation was present over the trunk and proximal parts of extremities. The clinical presentation was suggestive of arsenicosis. There was history of similar ailment in some of the fellow villagers as well. With the help of health authorities, a survey was conducted in the village and it was found that eight more villagers were suffering from similar kind of illness. The common source of arsenic was explored and found to be increased in drinking water that was taken out through hand pump. The level of arsenic in drinking water was significantly above the WHO safe limit for arsenic.