Kinjo Tatsuya

写真a

Title

Associate Professor

Researcher Number(JSPS Kakenhi)

50623386
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Current Affiliation Organization 【 display / non-display 】

  • Duty   University of the Ryukyus   Faculty of Medicine   School of Medicine   Associate Professor  

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External Career 【 display / non-display 】

  • 2013.04
    　
    　

    University of the Ryukyus, Faculty of Medicine, University Hospital, Instructor  

  • 2013.04
    　
    　

    University of the Ryukyus, Faculty of Medicine, University Hospital, Instructor  

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Published Papers 【 display / non-display 】

  • Primary Neuroendocrine Tumor Arising with a Retroperitoneal Mature Cystic Teratoma in an Adult: A Case Report

    Hayashi Yuki, Kinjo Tatsuya, Nishigaki Taishi, Miyagi Yoshihiro, Nakagawa Yutaka, Takatsuki Mitsuhisa

    The Japanese Journal of Gastroenterological Surgery ( The Japanese Society of Gastroenterological Surgery )  54 ( 4 ) 293 - 301   2021.04

    Type of publication: Research paper (scientific journal)

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    <p>A 10-cm pelvic tumor was incidentally detected in a 26-year-old woman in screening during pregnancy. Laparoscopy revealed a retroperitoneal tumor, which was suspected to be malignant because a solid lesion was found adjacent to the cystic lesion. She was then referred to our hospital for treatment. Abdominal contrast-enhanced CT and MRI showed a multicystic tumor with an enhanced small nodule at the dorsal side of the tumor that was found in front of the sacrum. Surgical resection was performed and the pathological findings after surgery revealed that the tumor was a retroperitoneal mature cystic teratoma and the small nodule was a neuroendocrine tumor (NET). The clinical course after surgery was unremarkable and the patient was discharged on the 7th day after surgery. Retroperitoneal mature cystic teratomas are relatively rare in adults. Since it has been reported that the frequency of malignant transformation increases with age and the prognosis is poor after this transformation, early surgery is recommended. We report this case as a very rare example of a retroperitoneal mature cystic teratoma containing a NET in an adult, and we include a literature review.</p>

  • A Case Report of Laparoscopic Resection of Primary Round Ligament Leiomyoma

    CHINEN Itaru, KINJO Tatsuya, MIYAGI Yoshihiro, TAKATSUKI Mitsuhisa

    Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) ( Japan Surgical Association )  82 ( 5 ) 972 - 976   2021

    Type of publication: Research paper (scientific journal)

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    <p>A 53-year-old woman presented to a clinic because of right lower quadrant abdominal intermittent pain once every two months for three years. An ovarian tumor was found by examinations, and she was referred to the department of gynecology in our hospital. A trans-vaginal ultrasound showed no evidence of the disease involving the uterus, bilateral ovaries and salpinx. An abdominal contrast-enhanced computed tomography (CT) scan showed an enhanced intra-pelvic ovoid tumor 3.5 cm in size which was adjacent to the small intestine. A pelvic contrast-enhanced magnetic resonance imaging (MRI) showed a high-intensity lesion with internal heterogeneous enhancement in T1 weighed fat suppression. A positron emission tomography scan showed an abnormally high FDG uptake in the tumor. She was diagnosed with GIST of the small intestine and was referred to our department. Laparoscopic surgery showed that the tumor was ovoid in shape with smooth surface and well movable and both the size and localization of the tumor accorded with those in the images. We found that the tumor had the origin of the round ligament of the uterus after the explosion of the tumor and then performed laparoscopically completely excision of the tumor. The histological findings showed that spindle-shaped tumor cells proliferated in disarray that were immunohistochemically positive for α-SMA and Desmin and negative for DOG-1. The tumor was diagnosed as leiomyoma of the round ligament of the uterus. The leiomyoma originated from the round ligament of the uterus is rare and we report this case with review of the literature.</p>

  • Elective staged proctocolectomy and living donor liver transplantation for colon cancer with sclerosing cholangitis-related ulcerative colitis: a case report.

    Miyagi Y, Kinjo T, Yoshizumi T, Harada N, Arakaki S, Kinjo T, Hokama A, Takatsuki M

    Surgical case reports   6 ( 1 ) 278   2020.11 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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  • A Case of Solitary Fibrous Tumor Originating From Mesentery of the Sigmoid Colon and Rectum

    Nishigaki Taishi, Kinjo Tatsuya, Irei Yasue, Nishimaki Tadashi

    Nihon Gekakei Rengo Gakkaishi (Journal of Japanese College of Surgeons) ( Japanese College of Surgeons )  43 ( 2 ) 229 - 234   2018.04 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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    <p>A 59-year-old woman having initially presented to a clinic with abdominal distension was referred to the gynecology department in our hospital for the treatment of a pelvic tumor Abdominal contrast-enhanced computed tomography (CT) and magnetic resonance imaging (MRI) revealed a lobulated pelvic tumor measuring 20cm in size that showed internal heterogeneous enhancement, indicating necrotic or cystic lesions. The submucosal vein of the sigmoid colon and the inferior mesenteric vein were both markedly dilated. A diagnosis of a pelvic tumor originating from the mesentery of the sigmoid colon was made, and the tumor was surgically removed. Gross inspection of the specimen revealed a solid multinodular tumor, 20×15×7cm in size and weighing 1,740g. Histologically, the tumor was composed of spindle-shaped cells with vessel growth, which were immunohistochemically positive for CD34, vimentin, and Bcl-2, and negative for c-kit, desmin, and S-100. The final diagnosis was that of a solitary fibrous tumor (SFT). The patient has been disease-free for 15 months following the surgery.</p><p>SFT originating from the mesentery of the sigmoid colon and rectum is a rare tumor, with only 31 cases, including our own, reported in the literature to date. Although the incidence of malignant SFT is low, complete resection and long-term follow-up is very important.</p>

  • Laparoscopically Resected Gastrointestinal Stromal Tumor of the Small Intestine in a 17-year-old Patient

    NISHIGAKI Taishi, KINJO Tatsuya, IREI Yasue, KOYAMA Hirofumi, MATSUMOTO Hirofumi, NISHIMAKI Tadashi

    Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) ( Japan Surgical Association )  78 ( 9 ) 2076 - 2081   2017.09 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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    A 17-year-old girl presented to an emergency room clinic of nearby hospital for abdominal pain developed after dinner. Abdominal contrast-enhanced CT scan showed a pelvic tumor. She was diagnosed as having a right ovarian tumor, and was referred to the department of gynecology in our hospital for the treatment of this tumor. Following gynecological examination, a tumor of the small intestine was diagnosed, and then she was referred to our department for surgery. Abdominal contrast-enhanced CT scan showed a 9-cm tumor with irregular margin at the pelvis. A small intestinal tumor was suspected, and laparoscopic tumor extirpation was performed. A lobulated tumor 9cm in size was found in the pelvic cavity, and it was clarified to have originated from the small intestinal wall. It was twisted clockwise by about 540 degrees at the neck without apparent ischemic changes of the small intestine. The cut surface of the tumor looked whitish and multinodular. The histological findings revealed that spindle-shaped cells composed of the tumor, which were immunohistochemically positive for c-kit. The diagnosis of this tumor was small intestinal GIST, and a mutation analysis of the c-kit gene revealed this tumor to have a mutation in exon 11. She underwent adjuvant chemotherapy with imatinib. We report small intestinal GIST in a juvenile patient, which is a very rare entity, with a review of the literature.

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