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Two patients who developed scleroderma after silicone breast augmentation are described. One patient presented with the classic features of systemic sclerosis, and the other with calcinosis, Raynaud's phenomenon oesophageal dysfunction, sclerodactyly, and telangiectasia (CREST syndrome). The connective tissue diseases associated with mammoplasty are reviewed.

A case of severe falciparum malaria with trophozoites in 71% of the patients' erythrocytes is described. The patient was treated with high dose quinine and made an uneventful recovery. Exchange transfusion was not performed.

Two patients admitted to the medical intensive care unit with subarachnoid haemorrhage, one with the provisional diagnosis of 'sick sinus syndrome' the other as having an acute myocardial infarction complicated by ventricular tachycardia, are described and the arrhythmias associated with this condition are reviewed.

A case of primary liposarcoma of the right atrium is presented. Liposarcomas of the heart are extremely uncommon, only 3 previous cases having been reported in the English-language literature. The tumour must be differentiated from other polypoid cardiac tumours, particularly cardiac myxomas.

Legionnaires' disease is an acute bacterial pneumonia caused by Legionella pneumophila and related subtypes. In endemic areas legionnaires' disease accounts for between 2% and 15% of community-acquired pneumonias in adults admitted to hospital. The diagnosis of this disease may be difficult and therefore a high index of suspicion should exist. The clinical features of legionnaires' disease are reviewed.