We suspect that the diaphragmatic involvement was secondary to the seeding of tumoral cells disseminated during the laparoscopic myomectomy 7 years prior, probably owing to tumor morcelation. However, it is well known that uterine leiomyoma can also metastasize to different organs, even though it is seemingly benign. Such benign metastasizing leiomyomas were reported in 54 cases from 1973 to 1999.5,6Because these masses are mostly asymptomatic, they often grow large before they are detected and so can protrude into the liver, mimicking a hepatic tumor in the case of diaphragmatic location. They may be suspected to be tumors on chest radiography, which may reveal an elevation of the diaphragmatic shadow. A CT scan or an MRI scan is useful to localize the tumor and determine its relationship with other organs, although in some cases they can easily be misdiagnosed as hepatic masses. The presence of a diaphragmatic artery vascularizing the tumor should help the surgeon to suspect a diaphragmatic tumor.