CT and MRI imaging findings of abdominal and pelvic seminoma
Objective To investigate the CT and MRI imaging features of primary or metastatic seminoma in abdominal and pelvic cavity.Methods The clinical and imaging datas of 8 patients with abdominal and pelvic seminoma confirmed by histopathology were retrospectively analyzed.The CT and MRI imaging features were analyzed in combination with the literature,including location,shape,diameter,density/signal characteristics,enhancement mode,relationship with adjacent organs/blood vessels,capsule characteristics,and presence or absence of enlarged lymph nodes.Results The age of 8 patients ranged from 21 to 54 years,and the average age was 31 years.Seven patients visited the hospital due to conscious abdominal mass accompanied by abdominal pain,and one patient visited the hospital due to abdominal distension,low back pain and weakness of both legs.Among the 8 patients,4 cases were cryptorchid primary tumors,1 cases was normal testicular seminoma with retroperitoneal metastatic seminoma,and 3 cases were retroperitoneal metastatic seminoma formation after cryptorchid seminoma resection.On CT/MRI,8 cases of lesions showed lobulated solid or cystic-solid masses.On plain scan,the density/signal of the lesions in 8 cases was uneven,and the enhancement was uneven and progressive enhancement.The capsule was intact in 7 cases,and 4 cases had lymph node metastasis.Conclusion Seminoma tends to occur in young people and is prone to recurrence and metastasis.Its CT and MRI imaging findings have certain characteristics.
万方数据
维普
