Explanipedia

Postoperative recurrence of pancreatic cancer controlled for 9 months solely by severe carbohydrate restriction: ketogenic diet Open

Takahiro Einama, Naoto Yonamine, Masaki Hatakeyama, Sho Ogata, Kazuki Kobayashi , et al. · 2025

Comparison of gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid-enhanced MRI and contrast-enhanced CT evaluation of liver tumors: a prospective study Open

Yoji Kishi, Hiromi Edo, Ayako Mikoshi, Kousuke Okano, Takazumi Tsunenari , et al. · 2025

Gd-EOB-MRI was superior to CE-CT for detecting liver lesions. The false-positive rate was low for both modalities. Equivocal lesions were encountered frequently, but routine use of alternate modalities and evaluation by 2 or more radiologi…

Gadoxetic acid-enhanced magnetic resonance imaging to predict pathologic complete response of colorectal liver metastases in preoperative chemotherapy Open

Yukio Noguchi, Takahiro Einama, Mayuko Ohara, Koki Ichio, Kazuki Kobayashi , et al. · 2025

Recent advances in chemotherapy have expanded the opportunity for curative resection of colorectal liver metastases (CRLMs). Disappearing liver metastases (DLMs) are often encountered following chemotherapy. This study aimed to determine w…

Comparison of gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid-enhanced MRI and contrast-enhanced CT evaluation of liver tumors: A prospective study Open

Yoji Kishi, Hiromi Edo, Ayako Mikoshi, Kousuke Okano, Takazumi Tsunenari , et al. · 2025

Purpose This prospective study aimed to evaluate the outcomes of hepatic lesions detected by contrast-enhanced computed tomography (CE-CT) and gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging …

Spontaneous rupture during observation for degenerated uterine leiomyoma revealing uterine leiomyosarcoma: a case report Open

Masaki Tsuda, Hiromi Edo, Yuki Arai, Kohei Shikata, Ryo Tanaka , et al. · 2025

This case report describes a 47-year-old premenopausal woman who presented with abdominal discomfort and had been previously monitored for a suspected uterine leiomyoma. MRI revealed a 15 cm mass within the uterine body and slight intratum…

Malignant Ossifying Fibromyxoid Tumor With Lung Metastasis: A Case Report and Literature Review Open

Kaya Ijiri, Sho Ogata, Kosuke Miyai, Ayano Matsunaga, Chikako Sato , et al. · 2025

A Case of Intravascular Myopericytoma: A Painful Subcutaneous Tumor With an Intraosseous Lesion Open

Chikako Sato, Oh Takahashi, Sho Ogata, Mai Fujisaku, Hiromi Edo , et al. · 2024

Myopericytoma is a rare perivascular myoid neoplasm that typically arises in the dermis or subcutaneous tissue, with an intravascular variant also reported. We present a case of an elderly man with a subcutaneous nodule in his lower leg th…

Gadoxetic acid-enhanced magnetic resonance imaging to predict pathologic complete response of colorectal liver metastases in preoperative chemotherapy Open

Yukio Noguchi, Takahiro Einama, Mayuko Ohara, Kouki Ichio, Kazuki Kobayashi , et al. · 2024

Background Recent advances in chemotherapy have expanded the opportunity for curative resection of colorectal liver metastases (CRLMs). Disappearing liver metastases (DLMs) are often encountered following chemotherapy. This study aimed to …

Implanted cartilaginous grafts following rhinoplasty: A retrospective histopathological study Open

Susumu Matsukuma, Ayano Matsunaga, Sho Ogata · 2024

To describe histopathological features of rhinoplasty-related implanted cartilages, 83 cartilages surgically removed from 42 patients (2 men and 40 women) with a median age of 28.0 years (range, 21-47 years) following correction/revision r…

Ischemic fasciitis in a mobile elderly patient: A case report Open

Ayano Matsunaga, Yae Sasaki, Sho Ogata, Shogo Kariya, Michiro Susa , et al. · 2024

Ischemic fasciitis (IF) is a rare pseudosarcomatous lesion usually occurring in physically debilitated or immobilized, elderly patients. The current case presents a 76-year-old mobile man with IF on his back. The 33-mm subcutaneous lesion,…

Concurrent intestinal plasmablastic lymphoma and diffuse large B-cell lymphoma with a clonal relationship: a case report and literature review Open

Nao Imuta, Kosuke Miyai, Motohiro Tsuchiya, Mariko Saito, T. Sone , et al. · 2024

Herein, we report a case of plasmablastic lymphoma (PBL) and diffuse large B-cell lymphoma (DLBCL) that occurred concurrently in the large intestine. An 84-year-old female presented with a palpable rectal tumor and ileocecal tumor observed…

A Case of Pheochromocytoma With Coagulation Necrosis Due to Hypertensive Crisis Aggravated by Contrast-Enhanced CT Scan and Negative 123I-Metaiodobenzylguanidine (MIBG) Scintigraphy Open

Ai Kobayashi, Yuki Ishinoda, Asuka Uto, Sho Ogata, Naoki Oshima · 2024

¹²³I-metaiodobenzylguanidine (¹²³I-MIBG) scintigraphy is a highly sensitive and specific imaging test for the diagnosis of pheochromocytoma. Typical pheochromocytomas are positive on ¹²³I-MIBG scintigraphy;…

<span>IgG4</span>‐related retroperitoneal fibrosis induced by nivolumab and ipilimumab in a patient with non‐small cell lung cancer: A case report Open

Masashi Nishimura, Yoshifumi Kimizuka, Takunori Ogawa, Motohiro Tsuchiya, Yoshiki Kato , et al. · 2023

IgG4‐related diseases are adverse events that occur after receiving treatment with immune checkpoint inhibitors (ICI). This study reports the first case of IgG4‐related retroperitoneal fibrosis after the administration of chemotherapy with…

A case of low-grade endometrial stromal sarcoma presented as an intramyometrial mass mimicking uterine leiomyoma on MRI Open

Soichiro Tamada, Hiromi Edo, Taishi Sakima, Ryo Tanaka, Kohei Shikata , et al. · 2023

A low-grade endometrial stromal sarcoma (ESS) has a pattern of presenting as an intramyometrial mass and is often misdiagnosed as cellular leiomyoma or degenerative uterine leiomyoma. A low-grade ESS is a malignant tumour that requires tot…

Lipomembranous fat necrosis: A distinctive and unique morphology (Review) Open

Susumu Matsukuma, Ayano Matsunaga, Oh Takahashi, Sho Ogata · 2022

Lipomembranous fat necrosis (LFN) is an uncommon but distinct form of fat necrosis, which is characterized by eosinophilic, crenulated and/or serpiginous membranes. LFN exhibits macrocystic, microcystic and/or crushed features. LFN is rout…

Can Echocardiography Adjust Corrected Contrast Injection Condition in Coronary CT Angiography? Open

Sho Ogata, Daisuke Nagatomo, Kouji Mizoguchi, Toshihiro Teshima, Atsushi Hotta · 2022

The best correlation was obtained between the CT value of coronary arteries and SV. The contrast medium injection conditions were corrected for cardiac function in addition to body weight. As a result, we were able to control the CCTA targ…

Mucosal eosinophilic infiltration may be a characteristic of human intestinal spirochetosis Open

Sho Ogata, Ken Shimizu, Susumu Tominaga, Susumu Matsukuma · 2021

In vivo diffuse reflectance spectroscopic analysis of fatty liver with inflammation in mice Open

Yasuhiro Takihata, Satoko Kawauchi, Sho Ogata, Izumi Nishidate, Shunichi Sato , et al. · 2021

Mucosal eosinophilic infiltration may be a characteristic of human intestinal spirochetosis Open

Sho Ogata, Ken Shimizu, Susumu Tominaga, Susumu Matsukuma · 2021

Background: Human intestinal spirochetosis (HIS) is an infectious disease of large intestines caused by Brachyspira species, and most HIS cases are asymptomatic or exhibit mild intestinal symptoms. The host reaction to HIS remains unclear,…

Different role of MSLN and CA125 co-expression as a prognostic predictor between perihilar and distal bile duct carcinoma Open

Yasuhiro Takihata, Takahiro Einama, Kazuki Kobayashi, Takafumi Suzuki, Naoto Yonamine , et al. · 2021

Recent studies have suggested that the interaction of mesothelin (MSLN) and cancer antigen 125 (CA125) enhances tumor metastases. The aim of the present study was to clarify the impact of MSLN and CA125 co-expression on the prognosis of pa…

A Case of Pancreatic Cancer that Recurred as Skin and Muscle Metastases Open

Hiroki Abe, Takahiro Einama, Sho Ogata, Hironori Tsujimoto, Hideki Ueno , et al. · 2021

49歳，女性．膵頭部癌の診断で亜全胃温存膵頭十二指腸切除術を施行．術後補助化学療法としてgemcitabine （GEM）投与を7サイクル実施．術後3年5カ月，左胸壁に疼痛を伴う30mm大の腫瘤が出現しFDG-PET/CTを施行したところ，右上腕皮下，右臀部・大腿皮下，左前腕筋肉内，左大腿筋肉内，左胸壁，左脊柱背側筋群内にFDGの集積を認め，膵癌皮膚転移および筋転移を疑われた．胸壁病変の切除生検の結果，膵癌の皮膚転移・筋転移と確定診断した．再度GEM単剤で治療を再開し，一時…

Intracholecystic papillary neoplasm arising in a patient with pancreaticobiliary maljunction: a case report Open

T Iwasaki, Yasuhiro Otsuka, Yoichi Miyata, Takahiro Einama, Hironori Tsujimoto , et al. · 2020

Intracholecystic papillary neoplasm arising in a patient with pancreaticobiliary maljunction: A case report Open

T Iwasaki, Yasuhiro Otsuka, Yoichi Miyata, Takahiro Einama, Hironori Tsujimoto , et al. · 2020

Background: Pancreaticobiliary maljunction (PBM) is a congenital abnormality in which the pancreatic and biliary ducts join anatomically outside the duodenal wall resulting in the regurgitation of pancreatic juice into the biliary tract (p…

Intracholecystic Papillary Neoplasm Arising in A Patient with Pancreaticobiliary Maljunction: A Case Report Open

T Iwasaki, Yasuhiro Otsuka, Yoichi Miyata, Takahiro Einama, Hironori Tsujimoto , et al. · 2020

Background: Pancreaticobiliary maljunction (PBM) is a congenital abnormality in which the pancreatic and biliary ducts join anatomically outside the duodenal wall resulting in the regurgitation of pancreatic juice into the biliary tract (p…

A patient with a pancreatic neuroendocrine tumor and multiple liver metastases achieved a long-term partial response to third-line streptozocin treatment Open

Hiromi Nagata, Takahiro Einama, Mayumi Hoshikawa, Toshimitsu Iwasaki, Yoichi Miyata , et al. · 2019

Successful resection of a granulocyte colony‑stimulating factor‑producing carcinoma of the pancreas: A case report Open

Takayuki Akasaki, Takahiro Einama, Keita Tashiro, Hiromi Nagata, Kenji Yamazaki , et al. · 2019

Granulocyte colony-stimulating factor (G-CSF) is a naturally occurring glycoprotein that stimulates the proliferation of precursor cells in the bone marrow and their maturation into fully differentiated neutrophils. G-CSF-producing cancers…

Pathomorphological features of metastatic lymph nodes as predictors of postoperative prognosis in pancreatic cancer Open

Mayumi Hoshikawa, Sho Ogata, Makoto Nishikawa, Akifumi Kimura, Takahiro Einama , et al. · 2019

To investigate the pathological features of metastatic lymph nodes (LN) in pancreatic ductal adenocarcinoma (PDAC) and to determine factors with prognostic implications. Metastatic LN status is a proven significant factor for predicting po…

A Case of Retroperitoneal Extrarenal Angiomyolipoma Associated with a Huge Hematoma and Coagulopathy Open

Mayumi Hoshikawa, Suefumi Aosasa, Sho Ogata, Hiroshi Shinmoto, Hironori Tsujimoto , et al. · 2019

64歳，女性．易疲労感，腹部膨隆の精査で，貧血と血小板，PT活性低下に加え，CTで右腎を下方に，右肝を上方に圧排する25cm大の境界明瞭な腫瘤性病変を認めた．腫瘍は分葉状で内部は斑状の低吸収を示し，大部分は造影不良で一部漸増性の造影効果を示し，MRIでは腫瘤内部にT2WIで著明な低信号～高信号域が斑状に混在し，時相の異なる出血が疑われた．PET-CTで悪性所見を認めず，後腹膜chronic expanding hematoma （CEH）と診断し，腫瘤切除術を施行した．周囲…

A case of metastatic adenocarcinoma in the urinary bladder from primary lung cancer Open

Kenichi Kawamura, Teruhiko EHARA, Hiroe Matsui, Shingo TSURUOKA, Ken Shimizu , et al. · 2019

背景 : 転移性膀胱腫瘍は全膀胱腫瘍の 0.5〜2%を占める. 一方腺癌は膀胱腫瘍の 2%以下で, 半分は転移性が占める. 今回化学療法中に, 自然尿中に腫瘍細胞を認めた肺原発腺癌膀胱転移を経験した.

A case of intrahepatic cholangiocarcinoma that was difficult to diagnose prior to surgery: A case report Open

K Nagata, Takahiro Einama, Akifumi Kimura, Michinori Murayama, Hiroteru Takeo , et al. · 2018

The present study reports a case of mass-forming intrahepatic cholangiocarcinoma (ICC), which mimicked cholangiocellular carcinoma (CoCC) during imaging and a needle biopsy examination. A 51-year-old female with no relevant medical history…

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