Gastrointestinal stromal tumours and other primary gastrointestinal neoplasms. A single-center experience.

Background: In our surgical daily activity, we report the observation of rare tumour as Gastrointestinal Stromal Tumours (GIST). We report the incidence and behaviour of new cases of GIST operated in our Center during the last decade, from 2008 to 2018 and here we also describe the concomitant observation of a second gastroenteric tumor.

Method: We have examined all the case files and histological examinations of patients with CD 117-positive GISTs treated in our Institute from 2008 to 2018.

Is it always necessary to perform an axillary lymph node dissection on patients undergoing neoadjuvant therapy? Outcomes of a retrospective study.

Background: Some Trials have demonstrated that the rate of false negative results of a sentinel lymph node biopsy in patients undergoing neoadjuvant chemotherapy is >10%. The aim of this study is to identify the predictive factors of a pathologic complete response in the axilla in order to make a better choice between the performance of an axillary lymphadenectomy or the performance of a sentinel lymph node biopsy.

Methods: All patients diagnosed with positive axillary lymph nodes and achieving a clinical complete response after a neoadjuvant therapy were the object of our study.

[Neuroendocrine tumors. A rare case of duodenal carcinoids].

The authors report their experience with a case of double duodenum carcinoid tumors occurring in a 59-year-old female patient. She presented with a one-year history of frequent abdominal painful episodes, associated with dyspepsia, emesis, pyrosis, eructation, skin flushing and easy strain. The laboratory examinations point out high hematic values of serotonin and gastrin, with a raising of urinary 5-HIAA.

[Voluminous cystic lymphangioma of the retroperioneum in an adult. A case report].

Intra-abdominal cystic lymphangiomas are very rare tumours in adults. They are preferentially located in the neck, extremities and axillae in children. The authors report a case occurring in a 37-year-old female who had been experiencing dyspepsia and abdominal tension for a few weeks and was successfully treated surgically.