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  1. Small bowel cancer is very rare, accounting for less than 5% of all gastrointestinal cancers, and small bowel adenocarcinoma accounts for approximately 40% of all small bowel cancers. Small bowel adenocarcinom...

    Authors: Yuri Nishioka, Yasunori Matsumoto, Shunsuke Imanishi, Satoshi Endo, Takeshi Toyozumi, Yoshihiro Kurata, Takuma Sasaki, Gaku Ohira, Koichi Hayano and Hisahiro Matsubara
    Citation: Surgical Case Reports 2023 9:188
  2. Spontaneous regression of malignant tumors is a rare phenomenon, especially in primary lung cancer. The underlying mechanisms remain unclear, but they may often involve immunological mechanisms.

    Authors: Madoka Goto, Koichi Fukumoto, Yasuhisa Ichikawa, Hideki Tsubouchi, Mika Uchiyama and Shoichi Mori
    Citation: Surgical Case Reports 2023 9:187
  3. Few cases of traumatic pneumothorax complicated by thoracic empyema have been reported. The indication of antibiotic prophylaxis administration for traumatic pneumothorax during tube thoracostomy remains contr...

    Authors: Teppei Tokumaru, Hideaki Kurata, Jin Mitsui and Joji Tomioka
    Citation: Surgical Case Reports 2023 9:185
  4. Edwardsiella tarda (E. tarda) is a Gram-negative facultative anaerobe belonging to Enterobacteriales and is commonly isolated from fishes and reptiles. Infection due to E. tarda is uncommon among humans, with a r...

    Authors: Chisato Hara, Tetsuya Tanaka, Satoshi Nishiwada, Yuki Kirihataya and Atsushi Yoshimura
    Citation: Surgical Case Reports 2023 9:184
  5. Familial gastrointestinal stromal tumors (GISTs) are mesenchymal tumors of the digestive tract caused by germline gain-of-function mutations in the KIT gene or platelet-derived growth factor receptor alpha gene (

    Authors: Asami Arita, Tsuyoshi Takahashi, Kiyokazu Nakajima, Yukinori Kurokawa, Seiichi Hirota, Toshirou Nishida, Kotaro Yamashita, Takuro Saito, Koji Tanaka, Tomoki Makino, Makoto Yamasaki, Kunihiko Kawai, Yuichi Motoyama, Eiichi Morii, Hidetoshi Eguchi and Yuichiro Doki
    Citation: Surgical Case Reports 2023 9:183
  6. Gastric cancer metastatic to the extrahepatic bile duct or accompanied by portal vein tumor thrombus (PVTT) is rare. To our knowledge, there have been no cases complicated with both of these factors.

    Authors: Naohiko Otsuka, Yasuhiko Nakagawa, Hiroshi Uchinami, Yuzo Yamamoto and Junichi Arita
    Citation: Surgical Case Reports 2023 9:182
  7. Although metastatic spread of breast cancer to the gastrointestinal tract is very rare, it is more likely to occur in invasive lobular carcinoma (ILC) than in ductal carcinoma. Colonic metastasis is particular...

    Authors: Shinya Otsuka, Kazuteru Komuro, Masato Suzuoki, Shuhei Hayasaka, Momoko Tsuda, Kimitoshi Kubo, Tomone Ueki, Yumi Moriya, Noriko Kimura and Masanori Ohara
    Citation: Surgical Case Reports 2023 9:181
  8. Anastomotic recurrence of colorectal cancer is rare, but reoperation improves prognosis. However, there is no clear evidence regarding the extent of dissection, and there are few reports on the details of surg...

    Authors: Keita Sato, Yosuke Yamauchi and Koji Takahashi
    Citation: Surgical Case Reports 2023 9:180
  9. Appendiceal bleeding is very rare, accounting for about 0.4% of all lower gastrointestinal bleeding. We present a case of laparoscopic appendectomy in a patient with a diagnosis of appendiceal bleeding.

    Authors: Takuya Nakashima, Bun Sano, Aiko Ikawa, Kakeru Tawada, Tomohito Shinoda, Shinya Ohno and Reo Tachikawa
    Citation: Surgical Case Reports 2023 9:179
  10. Internal hernias are relatively rare and difficult to diagnose. Diagnostic delays lead to the progression of strangulation. In particular, pararectal fossa hernias are extremely rare. We encountered a case in ...

    Authors: Kozue Matsuishi, Seiya Saito, Mayuko Ohuchi, Yuki Kiyozumi, Jiro Nasu, Norihisa Hanada and Hideo Baba
    Citation: Surgical Case Reports 2023 9:178
  11. Extremely low birth weight (< 1000 g) still influences postsurgical prognosis in the neonatal and infantile periods. Additionally, the life expectancy of neonates with trisomy 18 is extremely poor owing to var...

    Authors: Mitsumasa Okamoto, Sachiyo Fukushima, Satoshi Okada, Yudai Tsuruno, Hiroaki Fukuzawa, Tomoaki Ioroi and Masaaki Kugo
    Citation: Surgical Case Reports 2023 9:177
  12. Pulmonary sequestration is a rare pulmonary malformation, with intralobar pulmonary sequestration being the most common subtype. Lobectomy has generally been performed for its treatment, owing to unclear bound...

    Authors: Chiaki Kanno, Yujin Kudo, Ryosuke Amemiya, Jun Matsubayashi, Hideyuki Furumoto, Satoshi Takahashi, Sachio Maehara, Masaru Hagiwara, Masatoshi Kakihana, Toshitaka Nagao, Tatsuo Ohira and Norihiko Ikeda
    Citation: Surgical Case Reports 2023 9:176
  13. The prognosis of hepatocellular carcinoma (HCC) with vascular invasion is extremely poor, especially in patients with tumor thrombus (TT) of the inferior vena cava (IVC), which is an oncological emergency with...

    Authors: Hiroki Kushiya, Yoshiyasu Ambo, Minoru Takada, Takahiko Masuda, Shuichi Naraoka and Satoshi Hirano
    Citation: Surgical Case Reports 2023 9:175
  14. Pulmonary extended segmentectomy is an optional surgical treatment for early-stage non-small cell lung cancer that helps to achieve optimal surgical margins. Here, we describe a challenging instance of extende...

    Authors: Masahiro Yanagiya, Ami Wada, Nobuyasu Awano, Takehiro Izumo and Yoshiaki Furuhata
    Citation: Surgical Case Reports 2023 9:174
  15. Liver metastasis of pure squamous cell carcinoma (SCC) from pancreatic ductal adenocarcinoma has not been previously reported.

    Authors: Yohei Mano, Keishi Sugimachi, Tomonari Shimagaki, Takahiro Tomino, Emi Onishi, Lingaku Lee, Terumasa Hisano, Yutaka Koga, Kenichi Taguchi, Masaru Morita and Yasushi Toh
    Citation: Surgical Case Reports 2023 9:173
  16. Postoperative recurrence is frequently encountered in the management of patients with Crohn’s disease and is most often found at the anastomotic site. A novel technique, the Sasaki-W anastomosis, is an antimes...

    Authors: Takahiro Asai, Hiroharu Shinozaki, Satoshi Shinozaki, Akitsugu Makino, Masashi Nakagawa, Kenji Kobayashi, Alan Kawarai Lefor, Seigo Yukisawa and Yoshiro Ogata
    Citation: Surgical Case Reports 2023 9:172
  17. Thoracic duct cysts are extremely rare mediastinal tumors. We report a case of a thoracic duct cyst extending from the caudal aspect of the left main bronchus to the left renal artery that was safely and compl...

    Authors: Hironari Miyamoto, Shigeru Lee, Takemi Ishidate, Kenji Kuroda, Hiroaki Kasashima, Yuichiro Miki, Mami Yoshii, Tatsunari Fukuoka, Tatsuro Tamura, Masatsune Shibutani, Takahiro Toyokawa and Kiyoshi Maeda
    Citation: Surgical Case Reports 2023 9:171
  18. Indocyanine green (ICG) fluorescence imaging is widely used in gastrointestinal surgery and is considered useful for reducing anastomotic leakage; however, because ICG remains in the tissue for a certain amoun...

    Authors: Tomohiro Kako, Masahiro Kimura, Ryo Nomura, Shuhei Uehara, Hiroshi Uematsu, Seiichi Nakaya, Yuzo Maeda, Ken Tsuboi, Koshiro Harata and Shuji Takiguchi
    Citation: Surgical Case Reports 2023 9:170
  19. An esophageal anastomotic stricture (EAS) after an esophageal atresia surgery occurs in approximately 4–60% of the cases, and its first-line therapy includes balloon dilatation. Oral balloon dilatation cannot ...

    Authors: Yoichi Nakagawa, Hiroo Uchida, Akinari Hinoki, Chiyoe Shirota, Wataru Sumida, Satoshi Makita, Kazuki Yokota, Hizuru Amano, Akihiro Yasui, Daiki Kato, Yousuke Gohda and Takuya Maeda
    Citation: Surgical Case Reports 2023 9:169
  20. Fibrolamellar hepatocellular carcinoma (HCC) (FL-HCC) is rare in Japan. FL-HCC develops in young patients with no history of cirrhosis and tends to manifest lymphatic metastasis with clinical features similar ...

    Authors: Akira Watanabe, Norifumi Harimoto, Hideyuki Saito, Reika Kawabata-Iwakawa, Takaomi Seki, Ryo Muranushi, Kouki Hoshino, Kei Hagiwara, Norihiro Ishii, Mariko Tsukagoshi, Takamichi Igarashi, Kenichiro Araki, Hayato Ikota, Takashi Ishige, Koshi Mimori and Ken Shirabe
    Citation: Surgical Case Reports 2023 9:168
  21. Tumor-associated sarcoid reactions have been observed with various tumors; however, they have not been reported with uterine cancer. We present two cases of splenic sarcoid reactions that mimicked metastases a...

    Authors: Kei Kitamura, Toshiro Ogura, Ryoichi Miyamoto, Hiroyuki Ishida, Shinichi Matsudaira, Amane Takahashi, Hiroaki Kanda and Takashi Fukuda
    Citation: Surgical Case Reports 2023 9:167
  22. Undifferentiated pleomorphic sarcoma is an uncommon sarcoma and its presence in the spleen is even rarer, with only a handful of cases reported in English literature. It is typically only diagnosed following h...

    Authors: Raphael Gatt, Luca Casingena, David Pisani, Rachel Agius and Noel Cassar
    Citation: Surgical Case Reports 2023 9:166
  23. An alpha-fetoprotein (AFP)-positive neuroendocrine tumor of the thymus is a rare thoracic malignancy. Few cases of AFP-positive thymic large cell neuroendocrine carcinoma have been reported, with no known prev...

    Authors: Masao Kobayashi, Soichiro Funaki, Eriko Fukui, Eiichi Morii and Yasushi Shintani
    Citation: Surgical Case Reports 2023 9:165
  24. Intrahepatic cholangiocarcinoma (ICC) is frequently associated with precursor lesions, and biliary intraepithelial neoplasia (BilIN) may play a significant role in the development of ICC. However, the exact se...

    Authors: Haruna Kubota, Yasushi Hashimoto, Kazuhiro Toyota, Raita Yano, Hironori Kobayashi, Yujiro Yokoyama, Yoshihiro Sakashita, Kiyomi Taniyama, Katsunari Miyamoto and Yoshiaki Murakami
    Citation: Surgical Case Reports 2023 9:164
  25. The use of extracorporeal membrane oxygenation (ECMO) as a bridge to lung transplantation is an uncommon strategy in Japan owing to the severe donor shortage and absence of urgent allocation policy. Moreover, ...

    Authors: Yasuaki Tomioka, Kentaroh Miyoshi, Shin Tanaka, Seiichiro Sugimoto, Rie Kanai, Tetsuro Nikai, Shinichi Toyooka and Masaomi Yamane
    Citation: Surgical Case Reports 2023 9:163
  26. Double inferior vena cava (DIVC) is rare and usually detected incidentally. DIVC may be associated with several anatomical variants of the retroperitoneal and pelvic veins. These variants can pose a clinical p...

    Authors: Mikio Kawamura, Shinji Yamashita, Hiroki Imaoka, Tadanobu Shimura, Takahito Kitajima, Yoshinaga Okugawa, Yoshiki Okita, Masaki Ohi and Yuji Toiyama
    Citation: Surgical Case Reports 2023 9:162
  27. Although most duodenal carcinomas are pathological adenocarcinomas, a small number of cases have been reported of adenosquamous carcinoma, characterized by variable combinations of two malignant components: ad...

    Authors: Arimasa Miyama, Yuko Chikaishi, Daigo Kobayashi, Kazuhiro Matsuo, Takayuki Ochi, Kenichi Nakamura, Tomoyoshi Endo, Kenji Kikuchi, Hidetoshi Katsuno, Aki Nishijima and Zenichi Morise
    Citation: Surgical Case Reports 2023 9:161
  28. Tracheal necrosis, which is rare because the trachea has rich in blood supply, can be a serious condition. Herein, we report the case of extensive tracheal necrosis that developed after right apical segmentect...

    Authors: Norifumi Tsubokawa, Takeshi Mimura, Kazuki Tadokoro and Yoshinori Yamashita
    Citation: Surgical Case Reports 2023 9:160
  29. A long-standing (over 10 years) anal fistula is considered a fundamental cause of fistula-associated mucinous adenocarcinoma (FAMC). Perianal abscesses and anal fistulas are two sequential phases of the same a...

    Authors: Michihiro Koizumi, Akihisa Matsuda, Takeshi Yamada, Koji Morimoto, Itaru Kubota, Yawara Kubota, Shuzo Tamura, Kenta Tominaga, Takashi Sakatani and Hiroshi Yoshida
    Citation: Surgical Case Reports 2023 9:159
  30. Synovial sarcoma is an uncommon soft tissue malignancy that mainly occurs near tendon sheath and bone joints. Primary intra-abdominal location is exceedingly rare and characterized by non-specific clinical signs.

    Authors: Nihed Abdessayed, Malek Barka, Samiha Mabrouk, Zeineb Nfikha, Zeineb Maatoug, Yosra Fejji, Mohamed Salah Jarrar, Sabri Youssef and Moncef Mokni
    Citation: Surgical Case Reports 2023 9:158
  31. Malignant peripheral nerve sheath tumors (MPNSTs) are malignancies that arise or differentiate from or infiltrate peripheral nerves and account for approximately 5% of soft-tissue malignancies. Approximately h...

    Authors: Rika Ono, Tetsuro Tominaga, Takashi Nonaka, Yuma Takamura, Kaido Oishi, Toshio Shiraishi, Shintaro Hashimoto, Keisuke Noda, Terumitsu Sawai and Takeshi Nagayasu
    Citation: Surgical Case Reports 2023 9:157
  32. The hinotori™ Surgical Robot System was approved for use in colorectal cancer surgery in Japan in 2022. This robot has advantages, such as an operation arm with eight axes, an adjustable arm base, and a flexib...

    Authors: Ryo Miura, Koichi Okuya, Emi Akizuki, Masaaki Miyo, Ai Noda, Masayuki Ishii, Momoko Ichihara, Takahiro Korai, Maho Toyota, Tatsuya Ito, Tadashi Ogawa, Akina Kimura and Ichiro Takemasa
    Citation: Surgical Case Reports 2023 9:156
  33. Transcatheter valve replacement is contraindicated in patients with active infective endocarditis. However, few reports suggest that it could be beneficial for high-risk surgical patients with healed infective...

    Authors: Yusuke Takei, Ryujiro Suzuki, Ikuko Shibasaki, Michiaki Tokura, Takahisa Nasuno, Hiroko Yazawa, Mayo Wada, Fumiya Saito, Shigeru Toyoda and Hirotugu Fukuda
    Citation: Surgical Case Reports 2023 9:155
  34. Ventriculoperitoneal (VP) shunt placement is commonly performed to treat hydrocephalus and complications are not uncommon. We report here a case of generalized peritonitis caused by migration of the abdominal ...

    Authors: Takeshi Morinaga, Osamu Nakahara, Akira Tsuji, Kunitaka Kuramoto, Masayoshi Iizaka, Shintaro Hayashida, Yuki Ohya, Yasuyuki Hitoshi and Yukihiro Inomata
    Citation: Surgical Case Reports 2023 9:154
  35. Pancreas divisum (PD), the most common pancreatic anomaly, is caused by the failure of pancreatic bud fusion in the embryo. Although most cases are asymptomatic, it can cause pancreatitis or epigastric pain. W...

    Authors: Tokuro Baba, Toru Yamazaki, Masato Sakai, Koichiro Matshuda, Koji Amaya, Mitsuhisa Takatsuki and Yasuhiro Okada
    Citation: Surgical Case Reports 2023 9:153
  36. Few reports of inflammatory myofibroblastic tumor (IMT) of the breast have been published worldwide. Furthermore, primary anaplastic lymphoma kinase (ALK)-positive IMT of the breast is extremely rare. To date,...

    Authors: Yasutaka Kawakita, Keisei Anan, Kanako Kurata, Kenichiro Koga, Michiyo Saimura, Sadafumi Tamiya, Kazuyoshi Nishihara, Shoshu Mitsuyama and Toru Nakano
    Citation: Surgical Case Reports 2023 9:152
  37. Early-stage colorectal cancer (CRC) is often treated endoscopically, but additional surgical resection may be considered depending on pathological findings.

    Authors: Yumeto Mikuni, Michio Tani, Nobuki Ichikawa, Hiroki Matsui, Shin Emoto, Tadashi Yoshida, Takuya Otsuka, Shigenori Homma, Takahashi Norihiko and Akinobu Taketomi
    Citation: Surgical Case Reports 2023 9:151
  38. Intestinal duplication and ectopic pancreas are two rare independent congenital anomalies. Few reports describe cases of patients with ectopic pancreas in an intestinal duplication causing acute peritonitis.

    Authors: Chihiro Yoshikawa, Kazuhiro Migita, Ichiro Yamato, Masato Ueno, Hisanori Kashizuka, Koichi Murakami and Hirofumi Ishikawa
    Citation: Surgical Case Reports 2023 9:150
  39. As the number of patients with inflammatory bowel disease (IBD) increases, the incidence of IBD-related colorectal cancer (CRC) is also on the rise. Crohn’s disease (CD)-related CRC has been reported to have a...

    Authors: Daisuke Kaneshiro, Yuusuke Sanechika, Kazuki Kishi, Daichi Sakai, Kazuya Iwamoto, Mitsunobu Takeda, Yujiro Nakahara, Tomofumi Ohashi, Atsushi Naito, Kenta Furukawa, Jeongho Moon, Mitsunobu Imasato, Tadafumi Asaoka and Tsunekazu Mizushima
    Citation: Surgical Case Reports 2023 9:149
  40. Duplicated left gastric artery (LGA) is a rare anomaly. With an incidence of only 0.4%, its clinical significance remains largely unrecognized.

    Authors: Hikota Hayashi, Noriyuki Hirahara, Takeshi Matsubara, Satoshi Takao, Hiroki Okamura, Kosuke Nakamura, Takashi Kishi, Takahito Taniura, Hitomi Zotani, Kazunari Ishitobi and Yoshitsugu Tajima
    Citation: Surgical Case Reports 2023 9:148
  41. Acinar cell carcinoma of the pancreas is a rare exocrine malignancy representing less than 1% of all pancreatic neoplasms. It has been reported that it responds to treatment differently from pancreatic ductal ...

    Authors: Shuhei Yamada, Haruka Motegi, Yoshiki Kurihara, Tomonori Shimbo, Isao Kikuchi, Toshiki Wakabayashi and Tsutomu Sato
    Citation: Surgical Case Reports 2023 9:147
  42. Postoperative sternal infection caused by Mycobacterium abscessus (M. abscessus) is rare, but associated with a high 2-year mortality rate of 40%. Decision-making around treatment strategy is challenging. Here, w...

    Authors: Takahiro Yanagihara, Tomoyuki Kawamura, Kenji Minagi, Yasuharu Sekine, Kazuto Sugai, Hideo Ichimura and Yukio Sato
    Citation: Surgical Case Reports 2023 9:146
  43. Small bowel cancer (SBC) is a rare malignancy that is often diagnosed at an advanced stage. Palliative chemotherapy is the standard treatment for patients with metastatic SBC. The relevant literature on conver...

    Authors: Miku Obayashi, Shimpei Otsuka, Ryo Ashida, Katsuhisa Ohgi, Mihoko Yamada, Takeshi Kawakami, Katsuhiko Uesaka and Teiichi Sugiura
    Citation: Surgical Case Reports 2023 9:145
  44. Nonocclusive mesenteric ischemia (NOMI), an ischemic bowel disease without a disruption of the mesenteric blood flow or strangulation of the mesentery or intestine, may cause a lethal clinical course. We repor...

    Authors: Koichi Okamoto, Hiroto Saito, Mari Shimada, Takahisa Yamaguchi, Toshikatsu Tsuji, Hideki Moriyama, Jun Kinoshita, Keishi Nakamura, Itasu Ninomiya, Hiroyuki Takamura and Noriyuki Inaki
    Citation: Surgical Case Reports 2023 9:144
  45. After orthotopic liver transplantation (OLT), complications such as hepatic artery stenosis, thrombosis, and bleeding are possible. Hepatic artery pseudoaneurysms (HAP) are prone to rupture, rupture hemorrhage...

    Authors: Kazuki Sasaki, Tadafumi Asaoka, Shogo Kobayashi, Yoshifumi Iwagami, Daisaku Yamada, Yoshito Tomimaru, Takehiro Noda, Hiroshi Wada, Kunihito Gotoh, Hidenori Takahashi, Noboru Maeda, Yasushi Kimura, Yusuke Ono, Yuichiro Doki and Hidetoshi Eguchi
    Citation: Surgical Case Reports 2023 9:143
  46. Type 1 gastric neuroendrine tumor (NET) is usually associated with chronic atrophic gastritis and forms multiple lesions. While most cases of type 1 gastric NET are generally slowly growing, some develop regio...

    Authors: Nozomi Funatsu, Kentaro Hara, Maki Takagi, Atsushi Onodera, Kohdai Ueno, Kazuya Endo and Haruhiko Cho
    Citation: Surgical Case Reports 2023 9:142
  47. Duplication of the alimentary tract can occur in any of its parts. For duodenal duplication, complete resection is particularly difficult when the ampulla of Vater is on the duplicated lumen and a deliberate m...

    Authors: Naruki Higashidate, Saki Sakamoto, Nobuyuki Saikusa, Yoshinori Koga, Daisuke Masui, Hirotomo Nakahara, Misa Nakamura, Mamoru Saikusa, Masahiro Kinoshita and Tatsuru Kaji
    Citation: Surgical Case Reports 2023 9:141
  48. Trastuzumab-based chemotherapy is a standard treatment regimen for human epithelial growth factor 2 (HER2)-positive gastric cancer. This is a case of a patient who has survived 12 years after being diagnosed w...

    Authors: Satoshi Yoshioka, Naoto Takahashi, Muneharu Fujisaki, Kenji Takeshita, Yuta Takano, Fumiaki Yano, Naoki Toya and Ken Eto
    Citation: Surgical Case Reports 2023 9:139

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