[Gastrointestinal stromal tumors: five case reports and review of the literature]. / Tumori stromali gastrointestinali: cinque casi clinici e revisione della letteratura.

Being a rare entity, GISTs represents the most common subset of mesenchymal tumours that arise from the digestive tract. Their immunohistochemical and histopathologic features distinguish them from other gastrointestinal mesenchymal neoplasms. These tumours have been the matter of considerable debate in the literature regarding their histogenesis, criteria for diagnosis, prognostic features and treatment. GISTs express Kit protein that not only is a marker for diagnosis but has also permitted to identify a specific medical treatment. The exceptional interest aroused in the literature leads us to make a review about this subject reporting five cases treated in the last 2 years.

[Biliary cystadenoma. A report of 2 cases]. / Il cistoadenoma biliare. Osservazione di 2 casi.

Two cases of cystadenoma of the biliary tract are presented. This is a rare tumor that represents less than 5% of non parasitic cysts of biliary origin. It usually occurs in middle-aged women. Ultrasound (US) and Computerized Tomography (CT) are most important for tumor diagnosis, but differential diagnosis with other cystic tumors of the liver is very difficult preoperatively. Malignant degeneration to biliary cystadenocarcinoma is documented. Surgery is always indicated and has included aspiration, sclerosis, marsupialization, internal drainage, but the complete removal of lesion with enucleation or liver resection is the treatment of choice.

[Antropyloric lithiasic obstruction: a variant of Bouveret's syndrome]. / Ostruzione litiasica antropilorica: una variante della sindrome di Bouveret.

Bouveret's syndrome is a rare complication of a biliodigestive fistula, where a big stone occludes the pyloro-duodenal region. The authors describe a case with obstructive variant at antropyloric level. With the help, of the literature they speak about this matter with particular attention to the clinic symptomatology and diagnostic and therapeutic procedure.

[Primary gastric lymphoma. Personal experience]. / Il linfoma gastrico primitivo. Nostra esperienza.

The authors report their experience regarding primary gastric lymphoma. The series presented consists of 5 cases: a correct preoperative diagnosis of primary gastric lymphoma was made in one case, whereas pseudolymphoma was hypothesised in a second patient. The remaining three cases were all maltomas. After examining the histological characteristics and classification of primary gastric lymphomas, the authors underline the importance of an early preoperative diagnosis of gastric lymphoma. The repeated use of endoscopic techniques with biopsy compared to radiological examination increases the possibility of diagnosing lymphoma from 20% to 85%. The success rate is further increased if ultrasonic endoscopy is used instead of endoscopy alone, thus making it possible to achieve a 97% diagnostic success rate. The authors then emphasise the fundamental role played by surgery in the treatment of gastric lymphoma. Depending on the depth of neoplastic infiltration, the dimensions of the neoplasia and its multifocality, in localised forms of the antrum (IE, IIE with a low degree of malignancy) surgery consists of resection with partial gastrectomy, provided the resection margins are undamaged, or total gastrectomy in those forms involving the fundus and body of the stomach.

[Carcinoma of the male breast. Our experience]. / Il carcinoma della mammella maschile. Nostra esperienza.

A case series of 5 male patients afflicted with breast carcinoma is reported. The Authors describe symptomatology, diagnostic iter, principles of surgical treatment and results. Underlined is the wider surgical demolition in male breast cancer in comparison with females, even if natural history and biological conduct are comparable. This is because in male breast carcinoma the local and remote infiltration is more rapid than female for the less development of breast gland. Finally, indications for radiochemotherapy are comparable to female breast cancer.

[Laparoscopic treatment of biliary cysts]. / Trattamento laparoscopico delle cisti biliari.

Here comes presented three cases of biliary cysts treated with laparoscopic technique. In the first case the discovery of a single cyst of small size on the hepatic margin have consented the total removal. In the second case was about a voluminous unique cyst, while in the third has been found an hepatic polycystosis. In both of them has been applied Lin's procedure with videolaparoscopic technique.