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  1. With the introduction of dose-dense therapy, the use of primary pegfilgrastim (PEG-G) has been increasing in breast cancer treatment. A rare side effect of PEG-G is aortitis. We describe a case of PEG-G-induce...

    Authors: Yoichi Koyama, Kayo Adachi, Mio Yagi, Yoko Go, Kyoko Orimoto, Saori Kawai, Natsuki Uenaka, Miki Okazaki, Mariko Asaoka, Saeko Teraoka, Ai Ueda, Kana Miyahara, Takahiko Kawate, Hiroshi Kaise, Kimito Yamada and Takashi Ishikawa
    Citation: Surgical Case Reports 2021 7:23
  2. Repeat pulmonary metastasectomy (PM) considerably improves the prognosis of patients with pulmonary metastases of osteosarcoma. Reports have demonstrated a significantly improved prognosis in patients who have...

    Authors: Satoshi Takamori, Hiroyuki Oizumi, Jun Suzuki and Katsuyuki Suzuki
    Citation: Surgical Case Reports 2021 7:22
  3. Mediastinal branching of the A7a from the right main pulmonary artery (PA) is extremely rare. Herein, we report a patient with an aberrant mediastinal A7a who underwent right basal segmentectomy for lung cancer.

    Authors: Yoshiaki Takase, Hiroyoshi Tsubochi, Ei Yamaki and Osamu Kawashima
    Citation: Surgical Case Reports 2021 7:21
  4. Teratoma is a true neoplasm and originates from the three germ cell layers and it can contain any tissue derived from these layers. The location of teratoma is variable according to the age group. In adults, s...

    Authors: Ziyad Alyousef, Maryam Aleissa, Ohood Alaamer and Nahar Alselaim
    Citation: Surgical Case Reports 2021 7:20
  5. Sickle cell disease (SCD) is a monogenic disease characterized by sickle hemoglobin (HbS). Patients homozygous for HbS experience symptoms resulting from sickled erythrocytes no later than adolescence. However...

    Authors: Toshimitsu Iwasaki, Satoshi Nara, Yuuki Nishimura, Hiroki Ueda, Yoji Kishi, Minoru Esaki, Kazuaki Shimada and Nobuyoshi Hiraoka
    Citation: Surgical Case Reports 2021 7:19
  6. Bile duct tumor thrombus (BDTT) is one of the features of advanced hepatocellular carcinoma (HCC). In the resection of HCC with BDTT, it is important to detect the BDTT tip to decide the appropriate point of b...

    Authors: Masaru Matsumura, Yasuji Seyama, Hiroyuki Ishida, Satoshi Nemoto, Keigo Tani and Jun Imamura
    Citation: Surgical Case Reports 2021 7:18
  7. Idiopathic myointimal hyperplasia of the mesenteric veins (IMHMV) is a rare ischemic bowel disease with venous occlusion resulting from the proliferation of smooth muscles in the venous intima. In most patient...

    Authors: Kohei Yamada, Masatsugu Hiraki, Toshiya Tanaka, Daisuke Mori, Futoshi Tanaka, Tatsuya Manabe, Hitoshi Aibe, Kenji Kitahara and Hirokazu Noshiro
    Citation: Surgical Case Reports 2021 7:17
  8. Fibromatosis-like metaplastic carcinoma (FLMCa), classified as a metaplastic carcinoma of the breast, is a very rare type of metaplastic carcinoma. We report a case of FLMCa that was difficult to diagnose.

    Authors: Daiki Takatsuka, Hiroyuki Ogura, Yuko Asano, Akiko Nakamura, Kei Koizumi, Norihiko Shiiya and Satoshi Baba
    Citation: Surgical Case Reports 2021 7:16
  9. Type I gastric neuroendocrine tumors (GNETs) originate from hyperplasia of enterochromaffin­like (ECL) cells and are commonly detected in patients with chronic atrophic gastritis, including autoimmune gastriti...

    Authors: Junya Kitadani, Toshiyasu Ojima, Keiji Hayata, Masahiro Katsuda, Shinta Tominaga, Naoki Fukuda, Hideki Motobayashi, Shotaro Nagano, Masaki Nakamura and Hiroki Yamaue
    Citation: Surgical Case Reports 2021 7:15
  10. De Garengeot hernia, wherein the appendix is present within a femoral hernia, is a rare disease; therefore, the clinicopathological features remain to be clarified. This study aimed to reveal the clinicopathol...

    Authors: Shigeaki Tsuruta, Hideo Miyake, Hidemasa Nagai, Yuichiro Yoshioka, Norihiro Yuasa and Masahiko Fujino
    Citation: Surgical Case Reports 2021 7:14
  11. A sigmoid volvulus occurs when a segment of the colon twists upon its mesentery. This infliction is associated with old age, multiple co-morbidities, and the male sex. We present a rare case of sigmoid volvulu...

    Authors: Mohammad Saba, Joshua Rosenberg, Gregory Wu and Gudata Hinika
    Citation: Surgical Case Reports 2021 7:13
  12. A pigmented carcinoid is an extremely rare variant of carcinoid characterized by melanin pigmentation of the tumor, with only five cases described in the literature. In addition, thymic carcinoids are rare in ...

    Authors: Yasushi Sakamaki, Ryo Tanaka, Daisuke Ishida, Hiromi Tsuji, Asako Mike and Hironao Yasuoka
    Citation: Surgical Case Reports 2021 7:12
  13. A communicating bronchopulmonary foregut malformation (CBPFM) group IB is very rare congenital malformation. Group IB is associated with tracheoesophageal fistula and esophageal atresia (TEF-EA) and a portion ...

    Authors: Toshio Harumatsu, Tatsuru Kaji, Ayaka Nagano, Mayu Matsui, Masakazu Murakami, Koshiro Sugita, Makoto Matsukubo and Satoshi Ieiri
    Citation: Surgical Case Reports 2021 7:11
  14. Spontaneous regression (SR) is a rare phenomenon in which a cancer disappears or remits without treatment. We report a case of breast cancer that showed spontaneous tumor regression in the surgical specimen af...

    Authors: Masahiro Ohara, Yumiko Koi, Tatsunari Sasada, Keiko Kajitani, Seishi Mizuno, Ai Takata, Atsuko Okamoto, Ikuko Nagata, Mie Sumita, Kaita Imachi, Mayumi Watanabe, Yutaka Daimaru and Shingo Kawamura
    Citation: Surgical Case Reports 2021 7:10
  15. Congenital pyloric atresia (CPA) is a rare gastrointestinal anomaly frequently associated with epidermolysis bullosa (EB). Although the complications of familial isolated CPA are minor, delays in diagnosis can...

    Authors: Ryuta Saka, Dan Yamamoto, Seika Kuroda, Souji Ibuka, Tasuku Kodama and Toshimichi Hasegawa
    Citation: Surgical Case Reports 2021 7:9
  16. Knowledge of anatomical abnormalities and variations in pulmonary vessels and bronchi is critical for patients requiring a lung segmentectomy. To the best of our knowledge, this is the first case of a tumor ex...

    Authors: Hiroki Matsumoto, Hidemi Suzuki, Takahide Toyoda, Terunaga Inage, Kazuhisa Tanaka, Yuichi Sakairi, Fumihiro Ishibashi, Takahiro Nakajima and Ichiro Yoshino
    Citation: Surgical Case Reports 2021 7:8
  17. Bariatric surgery is effective for the treatment of patients with morbid obesity and type 2 diabetes mellitus (T2DM), for body weight loss and glycemic control. However, in Japan, there has been no previous re...

    Authors: Hidetaka Ichikawa, Hirofumi Imoto, Naoki Tanaka, Hiroaki Musha, Shojiro Sawada, Takeshi Naitoh, Takashi Kamei and Michiaki Unno
    Citation: Surgical Case Reports 2021 7:7
  18. The indication of surgical resection for liver metastasis from gastric cancer (GC) is still limited and controversial because of its more aggressive oncological characteristics than liver metastasis from color...

    Authors: Naosuke Nakamichi, Masahiro Tsujiura, Tomohiro Matsui, Taiga Yamamoto, Ayana Yoshioka, Hidekazu Hiramoto, Yoshimi Ouchi, Takeshi Ishimoto, Toshiyuki Kosuga, Satoshi Mochizuki, Susumu Nakashima, Masamichi Bamba, Mamoru Masuyama and Eigo Otsuji
    Citation: Surgical Case Reports 2021 7:6
  19. Endoscopic submucosal dissection (ESD) is gaining ground as a minimally invasive treatment for early gastric cancer (EGC) that has a negligible risk of lymph node metastasis. According to the 5th edition of Ja...

    Authors: Ayako Kamiya, Hitoshi Katai, Kenichi Ishizu, Takeyuki Wada, Tsutomu Hayashi, Sho Otsuki, Yukinori Yamagata, Takaki Yoshikawa, Shigeki Sekine, Tomohiko Nishi, Yuka Kawasaki, Takafumi Ito and Hideharu Domoto
    Citation: Surgical Case Reports 2021 7:5
  20. The management of large abdominal wall defects, such as omphalocele or gastroschisis, remains a challenge for pediatric surgeons. Though several techniques have been described to repair those conditions, there...

    Authors: Miki Toma, Toshihiro Yanai and Shiho Yoshida
    Citation: Surgical Case Reports 2021 7:4
  21. Vascular invasion involving a tumor thrombus in the inferior vena cava and/or right atrium is an unfavorable prognostic factor after intrahepatic cholangiocarcinoma resection. We report an intrahepatic cholang...

    Authors: Genya Hamano, Shigekazu Takemura, Shogo Tanaka, Hiroji Shinkawa, Takanori Aota, Hiromichi Fujii, Takashi Murakami, Yuko Kuwae and Shoji Kubo
    Citation: Surgical Case Reports 2021 7:3
  22. Acute obstruction of the hepatic vein (HV) or the portal vein (PV), particularly when it occurs during liver surgery, is potentially fatal unless repaired swiftly. As surgical interventions for this problem ar...

    Authors: Yutaro Kato, Atsushi Sugioka, Masayuki Kojima, Junichi Yoshikawa, Yoshinao Tanahashi, Sanae Nakajima, Akira Yasuda, Gozo Kiguchi, Yuichiro Uchida, Toshihiro Yasui, Tatsuya Suzuki, Hokuto Akamatsu, Ryota Hanaoka, Hiroyuki Nagata, Ryoichi Kato and Ichiro Uyama
    Citation: Surgical Case Reports 2021 7:2
  23. Erythropoietic protoporphyria (EPP) is a rare disorder of heme synthesis. Patients with EPP mainly show symptoms of photosensitivity, but approximately 20% of EPPs are associated with the liver-related complic...

    Authors: Akiko Shimazaki, Takuma Hashimoto, Masaya Kai, Tetsuzo Nakayama, Mai Yamada, Karen Zaguirre, Kentaro Tokuda, Makoto Kubo, Ken Yamaura and Masafumi Nakamura
    Citation: Surgical Case Reports 2021 7:1
  24. Biliary atresia in very low birth weight (VLBW) and extremely low birth weight (ELBW) infants is rarely reported, and the optimal timing of Kasai portoenterostomy (KPE) in these cases remains unclear.

    Authors: Yuki Kawano, Koichiro Yoshimaru, Yasuyuki Uchida, Keisuke Kajihara, Yukihiro Toriigahara, Takeshi Shirai, Yoshiaki Takahashi and Toshiharu Matsuura
    Citation: Surgical Case Reports 2020 6:321
  25. Tumor thrombus in the superior mesenteric vein secondary to colon cancer is rare. We report a case of tumor thrombus in the superior mesenteric vein and liver metastasis due to advanced colon cancer that was t...

    Authors: Yoshitsugu Yanagida, Takahiro Amano, Ryuji Akai, Akira Toyoshima, Jotaro Kobayashi, Takuya Hashimoto, Eiji Sunami, Toshio Kumasaka and Shin Sasaki
    Citation: Surgical Case Reports 2020 6:320
  26. The standard therapeutic agent administered for portal vein thrombosis (PVT) in patients with or without cirrhosis is warfarin or low-molecular weight heparin. However, therapy with edoxaban appears to be one ...

    Authors: Hiroya Iida, Toru Miyake, Masaji Tani, Takuya Tanaka, Kayo Kawakami, Yoshihiro Ikuno, Ryoichi Mandai and Tomoharu Shimizu
    Citation: Surgical Case Reports 2020 6:319
  27. Lenvatinib is a novel tyrosine kinase inhibitor that exhibits an antitumor effect on hepatocellular carcinoma (HCC). An established strategy that involves surgery and usage of lenvatinib for advanced HCC remai...

    Authors: Yuki Ohya, Shintaro Hayashida, Akira Tsuji, Kunitaka Kuramoto, Hidekatsu Shibata, Hiroko Setoyama, Hironori Hayashi, Kazumi Kuriwaki, Masato Sasaki, Masayoshi Iizaka, Osamu Nakahara and Yukihiro Inomata
    Citation: Surgical Case Reports 2020 6:318
  28. Metastatic tumors to the breast reportedly account for 0.5% to 2.0% of all malignant breast diseases. Such metastatic tumors must be differentiated from primary breast cancer. Additionally, few reports have de...

    Authors: Yurina Harada, Makoto Kubo, Masaya Kai, Mai Yamada, Karen Zaguirre, Tatsuhiro Ohgami, Hideaki Yahata, Yoshihiro Ohishi, Hidetaka Yamamoto, Yoshinao Oda and Masafumi Nakamura
    Citation: Surgical Case Reports 2020 6:317
  29. Neuroendocrine carcinomas (NECs) of the colon are among the rarest types of colorectal cancers. Among these, large cell type neuroendocrine carcinoma (LCNEC) is particularly rare. Colorectal NEC is an aggressi...

    Authors: Kunihiko Suga, Hiroomi Ogawa, Makoto Sohda, Chika Katayama, Naoya Ozawa, Katsuya Osone, Takuhisa Okada, Takuya Shiraishi, Ryuji Katoh, Akihiko Sano, Makoto Sakai, Takehiko Yokobori, Ken Shirabe and Hiroshi Saeki
    Citation: Surgical Case Reports 2020 6:316
  30. Nodular fasciitis (NF) is a type of rare and rapidly growing tumor that affects the muscular fascial layers. Due to its locally aggressive nature and rapid growth, NF can be mistaken as a malignant process on ...

    Authors: Atsushi Yamamoto, Shinji Furuya, Koichi Takiguchi, Makoto Sudo, Katsutoshi Shoda, Hidenori Akaike, Naohiro Hosomura, Yoshihiko Kawaguchi, Hidetake Amemiya, Hiromichi Kawaida, Hiroshi Kono and Daisuke Ichikawa
    Citation: Surgical Case Reports 2020 6:315
  31. Non-occlusive mesenteric ischaemia (NOMI) is a condition in which intestinal ischaemia arises due to spasms of peripheral blood vessels; however, there is no obstruction of the main arteries. Risk factors incl...

    Authors: Yuichiro Furutani, Kaname Ishiguro, Masato Tokuraku and Hitoshi Moritomo
    Citation: Surgical Case Reports 2020 6:314
  32. Peritoneal dissemination associated with the postoperative recurrence of breast cancer is relatively low (3–6%). Although the prognosis of patients with peritoneal metastasis is generally short (7–26 months), ...

    Authors: Azusa Fuke, Isao Tabei, Tomoyoshi Okamoto and Hiroshi Takeyama
    Citation: Surgical Case Reports 2020 6:313
  33. Spontaneous regression (SR) of a malignant tumor is the partial or complete disappearance of primary or metastatic tumor tissue in the absence of treatment, which can be temporary or permanent. Here, we report...

    Authors: Kaoru Katano, Yutaka Yoshimitsu, Takahiro Kyuno, Yusuke Haba, Tsutomu Maeda and Seiko Kitamura
    Citation: Surgical Case Reports 2020 6:311
  34. There have been few reports on surgically treated primary lung cancer accompanied by contralateral partial anomalous pulmonary venous connection (PAPVC). In such cases, repair of the PAPVC might be necessary t...

    Authors: Koichi Fukumoto, Madoka Goto, Yasuhisa Ichikawa, Yuta Kawasumi, Mika Uchiyama, Atsuo Maekawa and Shoichi Mori
    Citation: Surgical Case Reports 2020 6:310
  35. The efficacy of resection of pancreatic cancer metastases has not been established. We here report two patients with long-term survival after resection of lung and liver metastases.

    Authors: Kei Hagiwara, Norifumi Harimoto, Kenichiro Araki, Akira Watanabe, Norio Kubo, Seshiru Nakazawa, Toshiki Yajima, Nobuyuki Uchida and Ken Shirabe
    Citation: Surgical Case Reports 2020 6:309
  36. Malignant phyllodes tumors (PTs) of the breast occur infrequently and are difficult to treat with adjuvant therapy. Here, we present a case of a female patient with a huge malignant PT with rapid progression i...

    Authors: Hajime Abe, Atsuko Teramoto, Yumiko Takei, Yoshihito Tanaka and Genichiro Yoneda
    Citation: Surgical Case Reports 2020 6:308
  37. An amendment to this paper has been published and can be accessed via the original article.

    Authors: Chikanori Tsutsumi, Toshiya Abe, Tomohiko Shinkawa, Kazuyoshi Nishihara, Sadafumi Tamiya and Toru Nakano
    Citation: Surgical Case Reports 2020 6:307

    The original article was published in Surgical Case Reports 2020 6:157

  38. Mesenteric cysts have various histological forms, including mesenteric cystadenomas and borderline cystic neoplasms. Primary cystadenocarcinoma of the mesentery is extremely rare; therefore, the clinical and r...

    Authors: Yuto Hozaka, Yuko Mataki, Hiroshi Kurahara, Kiyonori Tanoue, Tetsuya Idichi, Yota Kawasaki, Satoshi Iino, Pramod Nepal, Takaaki Arigami, Kosei Maemura, Hirotsugu Noguchi, Hiroyuki Shinchi, Akihide Tanimoto, Shoji Natsugoe and Takao Ohtsuka
    Citation: Surgical Case Reports 2020 6:306
  39. Glomus tumors (GTs) are mesenchymal neoplastic lesions arising from the glomus bodies and generally occur in the fingers and toes. Gastrointestinal GTs are rare, and most of them originate from the stomach; ho...

    Authors: Shin Sasaki, Yuko Takami, Yoshiyuki Wada, Tomoki Ryu, Hajime Imamura, Hiroki Ureshino, Minako Fujiwara and Hideki Saitsu
    Citation: Surgical Case Reports 2020 6:305
  40. Postoperative biliary strictures are commonly related to accidental bile duct injuries or occur at the site of biliary anastomosis. The first-line treatment for benign biliary strictures is endoscopic therapy,...

    Authors: Hiroki Horinouchi, Eisuke Ueshima, Keitaro Sofue, Shohei Komatsu, Takuya Okada, Masato Yamaguchi, Takumi Fukumoto, Koji Sugimoto and Takamichi Murakami
    Citation: Surgical Case Reports 2020 6:304
  41. Metastatic cancer to the stomach is relatively rare. Prostate-specific antigen (PSA) is a reliable biomarker used in the screening and management of patients with prostate cancer. However, it is difficult to d...

    Authors: Koji Shindo, Kenoki Ohuchida, Taiki Moriyama, Fumio Kinoshita, Yutaka Koga, Yoshinao Oda, Masatoshi Eto and Masafumi Nakamura
    Citation: Surgical Case Reports 2020 6:303
  42. Pancreatic cancer is a disease with a poor prognosis, requiring multidisciplinary treatment combining chemotherapy and surgery for effective management. Distal pancreatectomy with celiac axis resection (DP-CAR...

    Authors: Yoshiki Murase, Daisuke Ban, Aya Maekawa, Shuichi Watanabe, Yoshiya Ishikawa, Keiichi Akahoshi, Kosuke Ogawa, Hiroaki Ono, Atsushi Kudo, Toshifumi Kudo, Shinji Tanaka and Minoru Tanabe
    Citation: Surgical Case Reports 2020 6:302
  43. The mainstay treatment for arteriovenous malformation in the pancreatic head (Ph-AVM) is standard pancreatectomy, especially pancreaticoduodenectomy (PD), or interventional endovascular treatment. We report th...

    Authors: Takahiro Korai, Yasutoshi Kimura, Masafumi Imamura, Minoru Nagayama, Ayumi Kanazawa, Ryo Miura, Takeshi Murakami, Daisuke Kyuno, Hiroshi Yamaguchi, Kotomi Terai, Shintaro Sugita, Takayuki Nobuoka, Tadashi Hasegawa and Ichiro Takemasa
    Citation: Surgical Case Reports 2020 6:301
  44. Adult intussusception is recognized as an abdominal emergency. More than 90% of adult patients with intussusception have distinct causes that are related to benign or malignant tumors. In contrast, idiopathic ...

    Authors: Kyota Tatsuta, Mayu Sakata, Kosuke Sugiyama, Toshiya Akai, Katsunori Suzuki, Yuhi Suzuki, Takafumi Kawamura, Yoshifumi Morita, Hirotoshi Kikuchi, Yoshihiro Hiramatsu, Kiyotaka Kurachi and Hiroya Takeuchi
    Citation: Surgical Case Reports 2020 6:300
  45. Solitary fibrous tumor (SFT), a mesenchymal fibroblastic tumor with a hypervascular nature, rarely develops in the pelvis. Resection of a giant SFT occupying the pelvic cavity poses an increased risk of develo...

    Authors: Kizuki Yuza, Jun Sakata, Hiroki Nagaro, Takuya Ando, Yuki Hirose, Kohei Miura, Kazuyasu Takizawa, Takashi Kobayashi, Hiroshi Ichikawa, Takaaki Hanyu, Yoshifumi Shimada, Masayuki Nagahashi, Shin-Ichi Kosugi and Toshifumi Wakai
    Citation: Surgical Case Reports 2020 6:299
  46. Chemotherapy has been considered the main treatment for stage IV gastric cancer (GC). However, advances in chemotherapy have provided new clinical approaches, permitting conversion surgery with the aim of R0 r...

    Authors: Satoshi Toyota, Hiroshi Naito, Saki Motoyoshi, Ryota Nakanishi, Eiji Oki, Hiroyuki Orita and Daisuke Korenaga
    Citation: Surgical Case Reports 2020 6:298
  47. Although the primary treatment for malignant phyllodes tumor (PT) is complete surgical excision with either breast-conserving surgery or total mastectomy, recent technical advances have led to the adoption of ...

    Authors: Emi Morioka, Masakuni Noguchi, Miki Noguchi, Masafumi Inokuchi, Ken-ichi Shimada, Akihiro Shioya, Akane Aikawa, Hiroshi Minato and Mitsuharu Earashi
    Citation: Surgical Case Reports 2020 6:297
  48. Paroxysmal sympathetic hyperactivity (PSH) may occur in patients with traumatic brain injury. Heterotopic ossification (HO) has frequently been observed in patients with PSH and has been found to impair patien...

    Authors: Takeaki Sato, Mayo Watanabe, Yoshito Onoda, Taku Oyanagi and Shigeki Kushimoto
    Citation: Surgical Case Reports 2020 6:293
  49. Gastric inflammatory fibroid polyp (IFP) is a rare polypoid lesion of the stomach that is characterized pathologically by the presence of spindle cells, a prominent network of blood vessels, and inflammatory i...

    Authors: Akimasa Kawai, Hideo Matsumoto, Ken Haruma, Tomoko Kanzaki, Yuji Sugawara, Takashi Akiyama and Toshihiro Hirai
    Citation: Surgical Case Reports 2020 6:292

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