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Leiomyosarcomata arising in large veins are rare tumours. The preoperative diagnosis is often difficult and, if they are only discovered at an advanced stage, the prognosis is poor. We describe four patients with these tumours. Two have died of their disease and two remain free of disease 2 and 5 years after radical surgical excision.

Gynaecomastia is a common and well-recognised side-effect of anabolic steroid abuse in athletes. A staging system is proposed and a technique of excision under local anaesthetic described. Careful selection of cases and the use of meticulous technique can achieve good cosmetic results, without risk of recurrence of gynaecomastia.

Electrosurgical coagulation in the presence of blow-by oxygen is a potential source of fire in facial surgery. A case report of a patient sustaining partial-thickness facial burns secondary to such a flash fire is presented. A fiberglass facial model is then used to study the variables involved in providing supplemental oxygen when an electrosurgical unit is employed. Oxygen flow, oxygen delivery systems, distance from the oxygen source, and coagulation current levels were varied. A nasal cannula and an adapted suction tubing provided the oxygen delivery systems on the model. Both the "displaced" nasal cannula and the adapted suction tubing ignited at a minimum coagulation level of 30 W, an oxygen flow of 2 liters/minute, and a linear distance of 5 cm from the oxygen source. The properly placed nasal cannula did not ignite at any combination of oxygen flow, coagulation current level, or distance from the oxygen source. Facial cutaneous surgery in patients provided supplemental oxygen should be practiced with caution when an electrosurgical unit is used for coagulation. The oxygen delivery systems adapted for use are hazardous and should not be used until their safety has been demonstrated.