[Duodenal leiomyoblastoma. Apropos of a new case and review of the literature].

The authors report a new case of duodenal leiomyoblastoma. Since local anatomical factors were favorable, the tumor was removed by resecting the entire second portion of duodenum with reanastomosis of the remaining ends. This case can be added to the very small number of cases reported in the literature regarding leiomyoblastoma at this site in the gastrointestinal tract. Since diagnostic is difficult, and often made per-operatively following and acute complication, a precise topographical study of the region needs to be performed. It is only by this means that a completely safe operative procedure may be chosen and performed. From an anatomo-pathological viewpoint, several criteria exist to distinguish the potentially benign from the potentially malignant form. However, this remains to be confirmed given the controversial aspects of the subject. Study has mainly involved gastric localisations where a greater number of lesions have been found. At present, only time will show whether these tumors are benign or malignant.