The maximum tumor diameter, mitotic index, and Ki-67 labeling index were useful as an index of malignancy for gastric stromal tumor. The efficacy of surgical resection alone may be insufficient in patients with disseminated metastasis to the peritoneum.
Thrombocytopenia is a frequent finding following living donor hepatectomy. It appears more pronounced in right graft donors than in left graft donors. This study analyzed postoperative thrombocytopenia in 20 living liver donors and examined the change of endogenous thrombopoietin (TPO) in its recovery. Platelet count, TPO level, fibrinogen degradation product (FDP), and D-Dimer were measured before surgery and on postoperative days (PODs) 1, 2, 3, 5, 7, and 14. Concurrently, liver and spleen volumes were calculated by computed tomography. Platelet count on POD 3 was significantly lower in right graft donors than in left graft donors (13.0 Ϯ 3.7 ϫ 10 4 / L vs. 16.8 Ϯ 4.0 ϫ 10 4 / L, P ϭ 0.039) but recovered by POD 7 in all donors. Postoperative elevations of FDP and D-Dimer were significantly higher in right graft donors than in left graft donors. TPO level rose immediately after surgery, peaked on POD 5 in left graft donors and on POD 7 in right graft donors, and fell nearly to preoperative levels by POD 14. Postoperative TPO level per liver volume was significantly higher in right graft donors than in left graft donors. In conclusion, thrombocytopenia following living donor hepatectomy resolved within the first week regardless of graft type and was mainly associated with increasing consumption of circulating platelets, possibly due to intrahepatic and splenic congestion. With a reduced number of circulating platelets, TPO level rapidly increases. Also, with reduced consumption of platelets related to recovery from surgery, thrombocytopenia should resolve. As a consequence, TPO level would be expected to fall.
Intraperitoneal cyst occurring in the lesser omentum is extremely rare entity. Because of the absence of abdominal symptoms, omental cyst is occasionally found accidentally in imaging examination performed during health screening. We experienced a case of cystic lymphangioma that occurred in the lesser omentum, which was successfully resected under complete laparoscopic procedure. A 50-year-old Japanese woman was admitted to our hospital because a cystic mass was found in the abdomen. Abdominal computed tomography scan was performed because she had a traffic accident, despite complaining no abdominal symptoms. The abdominal computed tomography scan and magnetic resonance imaging revealed a large cystic mass in the lesser omentum adjacent to the lesser curvature of the stomach, which was resected with a complete laparoscopic procedure. As the cystic wall was closely attached to the lesser curvature of the gastric wall, an ultrasonic coagulating shear was quite helpful to entirely mobilize the cyst from the surrounding structure such as lesser curvature of the stomach. After placing clips to the feeding vessels to the cyst branched from the accessory hepatic vessels, the entire cyst was mobilized without leakage of cystic content. The postoperative course was uneventful with slight delayed gastric emptying due to partial denervation of the lesser curvature of the stomach. The patient was discharged on eighth day after surgery without any postoperative complications. This is the first case of cyst of lesser omentum resected under complete laparoscopic procedure and certainly highlights advantage and feasibility of laparoscopic approach for cases with abdominal cystic lesions. Laparoscopic excision of cystic lymphangioma in the lesser omentum provides all the advantage of minimally invasive procedure.
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