Abstract:

The Affiliated Hospital of Qinghai University admitted a 53-year-old male patient in August 2023, who reported that he usually had no special discomfort, no symptoms such as radiating pain in the shoulder and back and abdominal pain, and no history of close contact with animals such as cattle, sheep, and dogs or living in a long-term endemic area. Physical examination and laboratory tests after admission were not abnormal. Combined with the patient’s medical history and imaging examinations such as three-phase dynamic-enhanced CT of the abdominal organs, the preliminary diagnosis was pancreatic plasma cystadenoma. After excluding relevant contraindications to surgery, laparoscopic pancreatic body-tail resection was performed. Intraoperatively, it was found that there was no ascites in the abdominal cavity, and the mass was located in the body of the pancreas, with unclear borders, protruding from the surface of the pancreas, measuring about 4.0 cm × 3.7 cm × 3.0 cm, with poor mobility and adhesion to the surrounding intestinal tract. The liver was normal in texture and color. After complete resection of the caudal part of the pancreatic body and the lesion, intraoperative frozen pathology suggested cystic echinococcosis of the pancreatic body. The patient’s postoperative vital signs were stable and recovery was uneventful. One month later, a follow-up CT scan of the upper abdomen showed that the operated area was better than before, and the patient reported that he had recovered well after the operation, with no obvious special discomfort, normal diet and sleep, normal urination and defecation, and the rest of the patient did not see any obvious abnormality.

Key words: Cystic echinococcosis, Plasma cystadenoma of the pancreas, Case report, Misdiagnosis