We report a case of adenomyoma in the small intestine, which is an extremely rare entity. An 81-year-old woman presented to our hospital with a history of three episodes of vomiting accompanied by abdominal pain. Upper gastrointestinal examination via a long tube found intestinal obstruction caused by a tumor of the small intestine. Laparotomy revealed a hard mass, 160 cm distal to the Treitz ligament. Pathological examinations of the resected tumor confirmed a diagnosis of adenomyoma originating in the small intestine. To our knowledge, this is only the second report of an adenomyoma of small intestine causing intestinal obstruction in an adult.

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Three-dimensional CT is a useful modality to visualize the vessel anatomy around the stomach, and it improves clinical effectiveness and reduces the invasiveness of surgery.

Conversion surgery has been reported but few cases have undergone surgical R0 resection after second-line chemotherapy. We report a case of an unresectable locally advanced gastric cancer in a patient who finally underwent the operation (R0) after second-line chemotherapy. The 77-year-old male was diagnosed with gastric cancer (cT4 [SI; Skin, Liver] N0M0 c Stage IIIA) with invasion to the skin of the abdominal wall, and chemotherapy was initially performed because of his poor performance status and due to the large defect in the abdominal wall that might occur if an operation was performed. Partial response (PR) was observed after S-1+CDDP (SP) therapy, which was then stopped after which progressive disease (PD) was observed. Ramucirumab+Paclitaxel (RAM/PTX) therapy was chosen as second-line therapy, and PR was obtained again, following which total gastrectomy was performed (D2 dissection of lymph nodes, Roux-en-Y reconstruction, and combined resection of the partial skin and the affected region of the liver). At 30 months postoperatively, no recurrence has occurred and the patient is alive after the operation without chemotherapy.

Highlights We describe the PD strategies we used in three patients who strategy for three patients who had previously undergone distal gastrectomy for gastric cancer treatment. PD after gastrectomy requires more attention during surgery than ordinary PD due to anatomical variation with different types of gastrointestinal anastomoses, the complication of anatomical dissection, and the extent of adhesions present, so the optimal method for reconstruction after PD should be considered on a case-by-case basis.

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