The gold standard technique for autologous breast reconstruction is the transverse rectus abdominis flap (TRAM). Recently, techniques of harvesting a latissimus dorsi flap have been modified in such a way as to increase the flap and allow breast reconstruction without an associated implant. The aim of this study was to evaluate aesthetic results obtained with this method and to assess early morbidity related to the changes in the technique. Between January 1994 and August 1998, 43 patients underwent breast reconstruction with an autologous latissimus dorsi flap. Their postoperative outcome was compared to that of 30 patients who underwent reconstruction with a latissimus dorsi flap associated with an implant. These 43 patients were asked to come back for aesthetic evaluation by a physician and to answer a questionnaire about cosmetic results. Mean duration of follow-up was 18.6 months (range 8 to 60). Mean size of the breast reconstructed with this technique was 340 g (up to 835 g). Dorsal seroma was the most frequent complication (72%), followed by delayed dorsal healing (19%). The frequency of seroma was significantly increased when compared to a classic latissimus dorsi flap (P = 0.003), but frequency of skin slough was not. The aesthetic result was considered satisfactory in 93% of the cases by the patient and 77% of the cases by the physician. In conclusion, the extended latissimus dorsi flap allows reconstruction of small and medium size breasts, with a good aesthetic result. This flap appears to be an interesting alternative to the TRAM flap for autologous reconstruction in selected patients.