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Minerva Chirurgica 2012 April;67(2):175-80

language: English

Clinical-pathological features of gastrointestinal stromal tumors presenting associated with other neoplasms: a brief report

Lorenzon L. 1, Ziparo V. 1, Cavaniglia D. 1, Pilozzi E. 2, Iannicelli E. 1, Caterino S. 1

1 Surgical and Medical Department of Clinical Sciences, Biomedical Technologies and Translational Medicine, Faculty of Medicine and Psychology, La Sapienza University, Rome, Italy;
2 Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, La Sapienza University, Rome, Italy


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AIM: Over the past 10 years, few authors reported the synchronous detection of gastrointestinal stromal tumors (GISTs) and other neoplasms in the 9-33% of GISTs series. The primary aim of the present study was of investigating the features of GISTs detected in patients with other malignancies.
METHODS: From 1999 to 2010 the GISTs detected at surgical exploration or preoperative assessment for other malignancies plus primary-GISTs, were recorded and reviewed.
RESULTS: All synchronous GISTs were positive for kit/CD34, resulting smaller in size, with a lower mitotic index and occurring in elderly patients, comparing with primary-GISTs (P<0.05). Moreover a prevalence of males and of lower-risk classifications were noted, not reaching, however, a statistical value.
CONCLUSION: According with our findings, the synchronous GISTs are mainly asymptomatic/incidentally detected and display some of the low malignant features; we recommend, however, the surgical excision of GISTs occurring in patients with other malignancies in order to define the histology and risk features and since it might result in an incorrect management if misdiagnosed as a metastases.

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laura.lorenzon@uniroma1.it