The aim of the present study is to research histological and molecular markers in patients with neoplasia of the gastrointestinal tract.

The aim of the present study is to search for histological and molecular markers in patients with neoplasia of the gastrointestinal tract.

Inclusion Criteria:

• Age 18 years or older;
• PS ECOG 0-2;
• Histological diagnosis of cancer of the gastro-enteric district: intestinal, pancreatic, biliary tract neoplasms;
• Radiological evidence of resectable/locally advanced/metastatic disease on the date of the first visit;
• Availability of tumour histological material;
• At least one visit following the first oncological visit.

Exclusion Criteria:

• Absence of histological diagnosis of neoplasm of the gastro-enteric tract;
• Lack of histological specimens on which to perform examinations.