Conclusion PEA, a rarely seen disease,is hard to differentiate from synovioma, fibrosarcoma or giant cell tumors, whose diagnosis depends on pathological examination.
Those patients without nonspecific symptoms at early stage had mostly lost the opporunity of surgical therapy when pancreatic cancer was detected at advanced stage.
X-ray fluoroscopy examination arid barium meal were performed in 15 cases with esophageal foreign bodies and injury.All cases were proven by esophagoscope examination and clinic treatment.