Summary Four late complications of partial gastrectomy are described. The partial gastrectomies were all of the antecolic Polya type with anastomosis of the afferent loop to the lesser curve. In the first of the cases described, partial gastrectomy was followed by perforation of a jejunal ulcer of the afferent loop. In the second case it was followed by “dumping” symptoms and then acute intestinal obstruction due to impaction of orange pith in the lower jejunum. In the third case partial gastrectomy was followed by obstruction of the afferent jejunal loop by adhesions; the distended loop was palpable as an epigastric tumour and the patient developed jaundice. In the fourth case the ileum was mistaken for the jejunum and was used in making the anastomosis.

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Summary 1. Primary hydatid cyst of the brain with calcification of the ectocyst and secondary echinococcosis is described. 2. The Casoni test gave a negative result. 3. Post‐operative internal hydrocephalus developed. 4. Post‐mortem examination disclosed a basal meningitis causing ventricular obstruction.