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  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. Segmental absence of intestinal musculature (SAIM) is a partial defect of the intrinsic muscular layer of the intestinal tract. In this report, we describe a case of perforation of the sigmoid colon due to SAI...

    Authors: Kosuke Funaki, Tomonori Akagi, Hidefumi Shiroshita, Yusuke Itai, Kiminori Watanabe, Takashi Shuto, Yoshitake Ueda, Tsuyoshi Etoh, Shinji Miyamoto, Tsutomu Daa and Masafumi Inomata
    Citation: Surgical Case Reports 2023 9:138
  31. Squamous cell carcinoma (SCC) of the breast is a rare form of breast cancer, accounting for approximately 0.1% of all breast cancers. It is known for its rapid tumor growth and poor prognosis with no establish...

    Authors: Misato Araki, Koshi Matsui, Kohji Takagi, Emi Kanaya, Shinichi Sekine, Shiho Nagasawa, Toru Watanabe, Takeshi Miwa, Katsuhisa Hirano, Takamichi Igarashi, Haruyoshi Tanaka, Kazuto Shibuya, Isaya Hashimoto, Shozo Hojo, Isaku Yoshioka, Tomoyuki Okumura…
    Citation: Surgical Case Reports 2023 9:137
  32. Pancreatic lipomas (PLs) arising from the adipose tissue in the pancreatic parenchyma are rare among pancreatic tumors. Coexisting pancreatic ductal adenocarcinoma (PDAC) and PLs have not been previously repor...

    Authors: Seiji Nakahara, Shunsuke Doi, Satoshi Nishiwada, Satoshi Yasuda, Minako Nagai, Kota Nakamura, Yasuko Matsuo, Taichi Terai, Yuichiro Kohara, Takeshi Sakata, Yuji Nitta, Kohei Morita and Masayuki Sho
    Citation: Surgical Case Reports 2023 9:136
  33. Solitary fibrous tumor of the pleura (SFTP) is a mesenchymal tumor. Patients with SFTP generally have only one lesion. We herein report an extremely rare case of multiple SFTPs that were multicentric and unila...

    Authors: Takuya Watanabe, Eriko Suzuki, Naoko Yoshii, Takuya Kohama, Kensuke Iguchi, Suiha Takeuchi, Minori Nakamura, Takumi Endo and Masayuki Tanahashi
    Citation: Surgical Case Reports 2023 9:134
  34. Myxoid liposarcoma (MLS), with its risk factors, tends to spread to the lungs and extraperitoneally, with intraperitoneal metastases occurring rarely. We present an unusual case of a myxoid liposarcoma that me...

    Authors: Fumika Kamehama, Tatsuya Kinjo, Yoshihiro Miyagi, Tomonori Furugen, Takao Teruya, Tomoko Tamaki, Naoki Wada and Mitsuhisa Takatsuki
    Citation: Surgical Case Reports 2023 9:133
  35. In Japan, about 6% of esophageal cancers are adenocarcinomas, although most of them arise from Barrett’s epithelium. Adenocarcinoma arising from heterotopic gastric mucosa (HGM) is very rare. Due to its rarity...

    Authors: Shohei Nogi, Kazuhiro Noma, Masashi Hashimoto, Takuya Kato, Naoaki Maeda, Shunsuke Tanabe, Yasuhiro Shirakawa and Toshiyoshi Fujiwara
    Citation: Surgical Case Reports 2023 9:132
  36. Foreign body (FB) ingestion is a common event in children. The management of the ingested FB depends on the location, type, number, size of the FBs, patient age, and symptoms. Although most FBs pass spontaneou...

    Authors: Michiaki Ikegami, Yuichiro Miyaki, Takashi Hamano, Yurina Taira and Toshiaki Takahashi
    Citation: Surgical Case Reports 2023 9:131
  37. The surgical strategy for thoracic esophageal cancer that invades the lungs is controversial. In particular, invasion of the pulmonary vein is often regarded unresectable. We successfully applied bilateral vid...

    Authors: Masakazu Fujii, Naoya Okada, Hiroaki Kato, Satoshi Ishihara, Masaru Abe, Takumi Yamabuki, Kentaro Kato, Minoru Takada, Yoshiyasu Ambo, Takeshi Yokoyama and Yoshihiro Kinoshita
    Citation: Surgical Case Reports 2023 9:129
  38. Owing to recurrent aspiration pneumonia and airway stenosis secondary to thoracic deformities, tracheostomy or laryngotracheal separation are often necessary in children with severe motor and intellectual disa...

    Authors: Tsuyoshi Iwanaka, Takeshi Shiraishi, Ryuichiro Hirose and Toshihiko Sato
    Citation: Surgical Case Reports 2023 9:128
  39. Musculocutaneous (MC) flaps are more resistant to infection than implants, but no clinical results have been reported so far about the grafting of MC flap to the overtly infected sites.

    Authors: Yuki Ishii, Hitomi Matsuki, Nozomi Uozumi and Shoji Oura
    Citation: Surgical Case Reports 2023 9:127
  40. A few cases of small omphalocele with umbilical evagination of the bladder have been reported. However, its embryology is yet to be elucidated. Only a few reports have indicated the existence of urachal anomal...

    Authors: Haruka Kobayashi, Tokuro Baba, Masaaki Kuda, Satoshi Ieiri and Mitsuhisa Takatsuki
    Citation: Surgical Case Reports 2023 9:126
  41. Follicular cholangitis (FC) is a benign bile duct disease that was first reported 2003. Pathologically, it is characterized by lymphoplasmacytic infiltration with multiple lymphoid follicle formations under th...

    Authors: Kenji Koneri, Takanori Goi, Hokahiro Katayama, Noriyuki Tagai, Michiaki Shimada, Hidetaka Kurebayashi, Katsuji Sawai, Mitsuhiro Morikawa, Masato Tamaki, Yasuo Hirono, Satomi Hatta, Yoshiaki Imamura and Makoto Murakami
    Citation: Surgical Case Reports 2023 9:124
  42. Low-grade fibromyxoid sarcoma (LGFMS) is an uncommon neoplasm generally affecting muscle tissue. It presents rarely in abdominal viscera and even more rarely occurs in the pancreas. All types of pancreatic sar...

    Authors: Eric J. Weiler, Thomas Murickan, Crystal N. Drayer, Sajjaad H. Samat and Michael A. Kia
    Citation: Surgical Case Reports 2023 9:123
  43. Mixed acinar-neuroendocrine carcinoma (MANEC) of the pancreas is a rare tumor. We report a case of successful surgical resection of expansively growing MANEC of the pancreas with microsatellite instability (MS...

    Authors: Kenji Yoshino, Yosuke Kasai, Manabu Kurosawa, Atsushi Itami and Kyoichi Takaori
    Citation: Surgical Case Reports 2023 9:122
  44. Palliative endoscopic stent placement may be considered in patients with malignant gastrointestinal obstruction. Stent migration is a potential complication, particularly for those placed at a surgical anastom...

    Authors: Kiwa Son, Koji Shindo, Kenoki Ouchida, Taiki Moriyama, Koji Tamura, Kinuko Nagayoshi, Yusuke Mizuuchi, Naoki Ikenaga, Kohei Nakata and Masafumi Nakamura
    Citation: Surgical Case Reports 2023 9:121
  45. Hepatic pseudoaneurysm (HPA) is a rare complication that can occur after liver trauma and carries a high risk of rupture. HPA is usually asymptomatic until rupture, so performing routine surveillance of liver ...

    Authors: Tomoyuki Sugi, Tsunehiko Maruyama, Reiji Nozaki, Masato Kawahara, Megumi Kamoshida, Sakura Narita, Hideya Takaku, Kazuaki Azuma, Yoshiro Chiba and Tatsuya Oda
    Citation: Surgical Case Reports 2023 9:120
  46. Intramural metastasis (IM) of esophageal cancer is classified as distant metastasis according to the Japanese Classification of Esophageal Cancer, and it is well-known to be associated with a poor prognosis. W...

    Authors: Ayako Wakasugi, Yasue Kimura, Keita Natsugoe, Tomonori Nakanoko, Kentaro Nonaka, Sho Nambara, Qingjiang Hu, Ryota Nakanishi, Mitsuhiko Ota, Eiji Oki, Yoshinao Oda and Tomoharu Yoshizumi
    Citation: Surgical Case Reports 2023 9:118

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