Investigation of Magnetic Resonance Imaging Features and Treatment of Sacrococcygeal Teratoma in Children / 实用儿科临床杂志

ABSTRACT

Objective To analyze the magnetic resonance imaging (MRI) features of sacrococcygeal teratoma in children,and explore the diagnostic value of MRI and the critical suggestion for treatment.Methods The MRI features,clinical features,pathological data and operation complication of sacrococcygeal teratoma in 26 children were retrospectively analyzed. Phenotype teratoma in 9 cases grew from apex of coccyx to fundament.They presented spherical or ellipsoidal,distinct boundary and septatus in cystic MRI.All pathological data presented benign tumors.Mixed teratoma in 16 cases growed from fundament to cavitas pelvis.They presented dumbbell,distinct boundary,mixed signal of cystiform and solid density in MRI.There were 12 cases in benign tumors and 4 cases in malignant in pathology,the invisible teratoma in 1 case which lay between rectum and sacrum,extended to cavitas pelvis.Its boundary was not intact and segmented,and the pathological data presented malignant tumors.Results All of the 26 cases were completely excised only once and 21 of them received sacrococcygeal incision,5 cases had abdominosacral combined incision.Twenty-two cases were followed up (benign 20 cases,malignant 2 cases),and 2 cases of them died. 8 cases had complications,of the 8 cases,2 cases with necrosis of flap,1 case with chronic sinus tract and 2 cases with recidivism occurrd.Conclusions MRI may detect discovering the location and appearance of sacrococcygeal teratoma in children in diagnosis and in differential diagnosis of tumor nature.It is a very significant to reconstruct cavities pelvis and eradicase focal dead space in prevention and treatment of post-operation complication in childrens sacrococcygeal teratoma.