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Three cases of primary malignant melanoma of the oesophagus are presented and the literature is briefly reviewed. This rare disease affects predominantly males in the sixth decade of life or later and the clinical and radiologic features are indistinguishable from those of more common oesophageal carcinomas. The tumours are often polypoid, located mainly in the lower two-thirds of the esophagus, and their histologic features resemble those of lentigo maligna melanoma, but with more aggressive biologic behavior. Because of the potential for extensive intramucosal involvement, multicentricity and high local recurrence rate, surgical treatment requires radical excision with a much greater margin than for the common squamous cell carcinomas. Though the outlook is poor, surgery is the favoured treatment with palliative or curative intent, with a 5-year survival rate of 4.2%. Radiotherapy, chemotherapy and immunostimulation currently serve mainly as palliative or adjunctive measures.

Surgical closure of a bronchopleural fistula following right pneumonectomy for squamous cell carcinoma was achieved with monomeric n-butyl-2-cyanoacrylate. Previous attempts at closure by conservative and endoscopic means were unsuccessful. Tissue adhesives are useful in the surgical or endoscopic management of bronchopleural fistula.

An unusual case of carcinosarcoma of the lung with metastasis to the gastrointestinal tract causing intussusception is presented. The clinical, radio-logic and histopathologic features are reviewed with reference to relevant literature.

A case of spontaneous rupture of the oesophagus (Boerhaave's syndrome) following acute myocardial infarction is presented. Conservative management with chest drainage and parenteral, later jejunostomy, feeding was successful. Progress was monitored with methylene blue swallow. A review of the literature revealed only two previous cases of this type.

Nine cases of primary sternal tumour were retrospectively reviewed in regard to clinical, radiologic and surgical features. The tumours were chondrosarcoma (4), chondroma (3), solitary plasmacytoma (1) and osteochondroma (1). All the benign lesions were excised without complication or recurrence. Three chondrosarcomas were radically excised en bloc, and one was only locally excised because of gross involvement of underlying structures. The solitary plasmacytoma was treated with incisional biopsy and radiotherapy. Two of the three patients with radical excision of sternal chondrosarcoma were alive after 5 years. Careful preoperative assessment, including use of computed tomography, is important. Wide excision should be the procedure of choice for all sternal tumours, since differentiation between benign and malignant lesions may be difficult in cartilaginous tumours, which are the commonest types.