先天性纤维瘤病是一罕见的婴幼儿间叶肿瘤。我科于1985年11月收治一例,经病理及电镜证实,兹报道如下: 患儿,男,50天,出生时发现右髋部肿块约乒乓球大,迅速增大,包块表面皮肤破溃,下覆黑色胶质,第二胎足月顺产。家族无类似疾病。 Congenital fibromatosis is a rare infantile mesenchymal tumor. Our department was admitted to a hospital in November 1985. It was confirmed by pathology and electron microscopy. It is reported as follows: Children, men, 50 days old, found that the right hip mass was large at the time of birth. The size of the table tennis was rapidly increased and the surface of the mass was ulcerated. , Underlying black glial, second child full term delivery. There is no similar disease in the family.