Patients with xeroderma pigmentosum complementation groups C, E and V do not have abnormal sunburn reactions.

Background: Xeroderma pigmentosum (XP) is a rare autosomal recessive disorder of DNA repair. It is divided into eight complementation groups: XP-A to XP-G (classical XP) and XP variant (XP-V). Severe and prolonged sunburn reactions on minimal sun exposure have been considered a cardinal feature of classical XP.

Oesophagomyotomy for achalasia of the cardia.

Experience of 48 cases of achalasia of the cardia, treated by oesophagomyotomy, and of three cases of failed 'Heller' operation, treated by jejunal interposition, is recorded. Some technical details and the results are discussed.