Phvsician to Out-Patients, Bristol Children's Hospital Primary malignant disease of the pancreas in infancy and childhood is a rarity as indicated by the few cases reported in the literature.Lymphosarcoma was found in a new-born infant by L'Huillier (1904), and in a girl aged four years by Litten (quoted by Ewing, 1928). Todd (1818) reported a case of a girl aged fourteen years, who having been ill for some months with pyrexia and digestive disturbances, became deeply jaundiced and died. Post mortem, the pancreas appeared scirrhous, and the head of the gland was converted into a solid tumour mass which obstructed the common bile duct, causing gross distension of biliary and hepatic ducts. Rokitansky (1842) and Wedl (1866) both describe a scirrhous condition of the pancreas in new-born infants, but in Wedl's case the mother had syphilis, so that the condition was probably syphilitic and not malignant. Battersby (1844) reperts a case of carcinoma in a fourteen-year-old child, and Herringham (1894) in a two-year-old child, but no details of the case are given and in none of these five cases is there any histological confirmation of malignancy.There are five recorded cases of pancreatic primary carcinema in childhcod in which histological evidence of malignancy has teen obtained. Bohn's case (1885) was an infant aged six months who was found to has-e an abdominal tumour and developed jaundice six weeks before death. Microscopy of the tumcur. which was situated in the head of the pancreas, showed that it had a finely meshed alx-eolar structure in the spaces of which were clusters of medium-sized cubical epithelial cells. There were secondary deposits in the lix er and in the glands at the portal fissure.Kuhn (1887) reported a case in a girl aged two years. This child had been ill for about nine months and then developed oedema of her legs and diarrhoea. An enlargement of the liver was found and she died from pneumonia. Post mortem the pancreas was found to be almost completely' replaced bv a reddish tumour, and there were secondarv nedules in the lix-er. Histology showed that the tumour was a cylindrical celled adeno-carcinoma. Simon's (1889) case was a thirteen-year-old boy, whose symptcms were anorexia and diarrhoea w-ith jaundice eight weeks before death. The whole gland w ith the exception of a small part of the tail, was inxolxed in a tumour mass, the histology of which was identical with Kuhn's case. Bandelier (1896) February 26, 1939. Both parents were healthy, and she had a sister aged two years w,ho was alive and well. She was breast-fed for three months and then weaned on to a cows' milk and w ater mixture. Her abdomen had seemed large since birth, but at the age of five months the mother complained that it was increasing rapidly in size and seemed very hard. Bowels were usually constipated, appetite was good but the child had alwavs had a good deal of flatulence and magnesia was given regularly. She was admitted to Bristol Children's