The most frequent sites of breast cancer metastasis are the bone, lung and liver. Metastasis to the gastrointestinal tract, central nervous system and adrenal glands are rare, the gastrointestinal tract more frequently with being affected by lobular breast cancer metastasis, and rarely by ductal breast cancer. The case reports a 52-year-old female patient, previously diagnosed with locally advanced ductal breast carcinoma - cT4N+M0, who received neoadjuvant chemotherapy, followed by modified radical mastectomy – ypT2N3aM0 – and adjuvant radiotherapy. During follow-up there were no signs of recurrence, but the patient experienced several episodes of sub-acute intestinal obstruction, which resolved with medical treatment. In 2017, January the patient had another intestinal obstruction, but this time a laparotomy was performed, and two small bowel metastasis were found, which were resected. The pathologic exam revealed metastasis from ductal breast cancer. In the article have we discussed the patterns of breast cancer metastasis, with special consideration for gastrointestinal tract.

Introduction: Bouveret's syndrome is a rare cause of pylorus or duodenal obstruction. This syndrome represents only 1-3% of all cases of gallstone ileus, more frequent in women and in the elderly. The clinical presentation is quite nonspecific, but in most cases the symptomatology suggests an upper digestive obstruction.Case Report: We report a case of a 46-year-old man admitted with upper digestive obstruction due to a large biliary calculus that eroded through the gallbladder's wall and pylorus, leading to digestive obstruction at this level. After attempted and unsuccessful endoscopic therapy, the patient was treated by surgery, with gastrotomy and gallstone removal. The fistula between the gallbladder