Primary extraskeletal osteosarcoma of the mesentery: A case report

Primary extraskeletal osteosarcoma of the mesentery: A case report

•Extraskeletal osteosarcoma is a rare malignant soft tissue tumor without attachment to the bone.•This is the first report of a single incisional laparoscopic resection.•Its diagnosis should be taken into consideration also when a soft tissue mass of the mesentery is found. Extraskeletal osteosarcom...

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Veröffentlicht in:International journal of surgery case reports 2019-01, Vol.60, p.111-114
Hauptverfasser: Ito, Shingo, Terado, Yuichi, Shimojima, Reiko, Hara, Yoshiaki, Narita, Kazuhiro, Tachimori, Yuji, Goto, Manabu
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Extraskeletal osteosarcoma
Laparoscopic surgery
Mesentery
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container_issue
container_start_page 111
container_title International journal of surgery case reports
container_volume 60
creator Ito, Shingo
Terado, Yuichi
Shimojima, Reiko
Hara, Yoshiaki
Narita, Kazuhiro
Tachimori, Yuji
Goto, Manabu
description •Extraskeletal osteosarcoma is a rare malignant soft tissue tumor without attachment to the bone.•This is the first report of a single incisional laparoscopic resection.•Its diagnosis should be taken into consideration also when a soft tissue mass of the mesentery is found. Extraskeletal osteosarcoma is a rare malignant soft tissue tumor without attachment to the bone. To the best of our knowledge, we present here the first report of a primary extraskeletal osteosarcoma of the mesentery in Japan. A 46-year-old female underwent a health examination, with no complaint. Following an ultrasonography a solid mass was detected in the abdominal cavity. Computed tomography showed a 38 × 25 mm heterogeneously enhancing mass. The latter was characterized by the presence of mottled calcifications and a cystic portion. The tumor was resected with a single incisional laparoscopic curative resection. Histopathological examination revealed the presence of a primary extraskeletal osteosarcoma arising from the mesentery. Postoperative course was uneventful. The patient did not receive chemotherapy during follow-up. She was recurrence free 10 months post-surgery. Patients with extraskeletal osteosarcoma generally have a poor prognosis. A tumor size
doi_str_mv 10.1016/j.ijscr.2019.05.058
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subjects Extraskeletal osteosarcoma
Laparoscopic surgery
Mesentery
title Primary extraskeletal osteosarcoma of the mesentery: A case report
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