The authors report the case of a drug abuser treated successfully for fungal tricuspid endocarditis complicated by massive pulmonary embolism. Partial valvular replacement with a segment of a tricuspid homograft associated with disobliteration of a pulmonary artery was performed. Peroperative transoesophageal echocardiography showed satisfactory tricuspid valve function. The postoperative course was uneventful. After 5 months' follow-up, the patient was asymptomatic and in good general condition. Control echocardiography showed a stable operative result.