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Meta analysis of solid pseudopapillary tumors of the pancreas

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胰腺肿瘤;实性假乳头状瘤;诊断;治疗;预后;Pancreatic neoplasms;Solid pseudopapillary tumors;Diagnosis;Treatment;Prognosis

Abstract´╝Ü Objective To summarize the experience of diagnosis, treatment and prognosis of solid pseudopapillary tumors of the pancreas (SPT) in China. Methods The Chinese literature from January 1992 to April 2009 in Chinese Journal Full-text Database was systematically searched and a total of 439 cases of SPT from 42 reports were found. Clinical data of these cases were retrospectively analyzed. Results Among 439 was 28 years old (range 8 ~76 yrs). The clinical symptoms were recorded in 377 cases, including abdominal pain (35. 3%), mass (31. 3%), discomfort (7. 7%). 101 patients (26. 8%) were completely asymptomatic, and the lesions were detected during routine check-up. All of the patients underwent surgical resection. The preoperative misdiagnosis rate was 65.4% ( 161/246 ). The rate of curative resection was 97.3% (427/439). Mean diameter of the tumor was 7.8 cm ( range 1.5 ~ 25.0 cm). Among 394 patients with information on metastases or invasions, 80 patients(20.3% ) were positive. In all patients, 418(95.2% )were followed up and the mean follow-up period was 34 months ( range 1 month to 25 years ). During the follow-up period, 403 ( 96. 4% ) patients were alive with no evidence of recurrence or metastases, local recurrence developed in 4 patients, the liver metastases developed in 6 patients, 4 patients died from the disease. Conclusions SPT is a rare and potentially low-grade malignant tumor, and predominantly affect young women. The correct diagnosis depends on the histopathological examination. Radical surgical resection is the only effective treatment for SPT, which usually has an excellent prognosis.

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