45 Result(s)
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Article
Yoshiaki Imamura
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Analysis of peripheral immune markers to predict liver injury during COVID-19
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Open AccessImproved artificial intelligence discrimination of minor histological populations by supplementing with color-adjusted images
Despite the dedicated research of artificial intelligence (AI) for pathological images, the construction of AI applicable to histopathological tissue subtypes, is limited by insufficient dataset collection owi...
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Open AccessPerivascular epithelioid cell tumors (PEComas) of the bone and soft tissue: a Japanese Musculoskeletal Oncology Group (JMOG) multi-institutional study
Perivascular epithelioid cell tumors (PEComas) of the bone and soft tissues are rare mesenchymal neoplasms, some of which are malignant. However, their clinical and pathological characteristics remain unclear....
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Open AccessFollicular cholangitis mimicking a common bile duct cancer: a case report
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...
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Histology and cytokine levels in hepatic injury accompanying a case of non-severe COVID-19
The pathogenesis of liver dysfunction that complicates coronavirus disease 2019 (COVID-19) remains unclear, especially in mild to moderate severity cases. In this case, a novel coronavirus infection was detect...
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Successful early diagnosis of monomorphic epitheliotropic intestinal T-cell lymphoma manifesting as chronic diarrhea and hypokalemia using video capsule endoscopy and double-balloon enteroscopy
Monomorphic epitheliotropic intestinal T-cell lymphoma (MEITL), formerly known as enteropathy-associated T-cell lymphoma (EATL) type II, is a rare disease with a poor prognosis that is often diagnosed when pat...
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A rare case of eosinophilic gastritis induced by nivolumab therapy for metastatic melanoma
Cancer immunotherapy using immune checkpoint inhibitors can cause immune reactions at various sites as a side effect called immune-related adverse events (irAEs). The gastrointestinal tract is susceptible to i...
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Pembrolizumab-induced autoimmune side effects of colon and pancreas in a patient with lung cancer
Immune checkpoint inhibitors have been shown to be effective for treating many carcinomas. However, the activated immune response may lead to the development of multiple immune-related adverse events, includin...
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Gastrointestinal AA amyloidosis secondary to chronic pyelonephritis presenting with refractory diarrhea and severe hypoalbuminemia
Secondary amyloidosis is a rare complication of chronic inflammatory diseases, such as collagen diseases, and is often difficult to treat. In addition, the gastrointestinal tract is frequently involved in amyl...
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A case of immune checkpoint inhibitor-related colitis with a distinctive endoscopic finding of colonic pseudolipomatosis
A man in his 70s received anticancer chemotherapy with the anti-programmed cell death protein–ligand 1 antibody atezolizumab for non-small cell lung cancer. Ten days later, he developed diarrhea and skin rash,...
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Advanced primary adenosquamous carcinoma of the liver with a small cell carcinoma component: an autopsy case report
Primary adenosquamous carcinoma (ASC) of the liver is a rare subtype of cholangiocarcinoma that comprises both adenocarcinoma and squamous cell carcinoma components. We report a 48-year-old woman with advanced...
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A case of idiopathic portal hypertension accompanying multiple hepatic nodular regenerative hyperplasia in a patient with systemic sclerosis
Idiopathic portal hypertension (IPH) is one of the background diseases causing nodular regenerative hyperplasia (NRH). Furthermore, IPH patients accompanied with autoimmune diseases, such as systemic lupus ery...
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A case of eosinophilic fasciitis without skin manifestations: a case report in a patient with lupus and literature review
Eosinophilic fasciitis (EF) is a rare connective tissue disease that causes inflammation and fibrosis of the fascia, inducing pain and motor dysfunction. Characteristic skin manifestations, such as edema, eryt...
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Open AccessHeterotopic ossification in lymph node metastasis after rectal cancer resection: a case report and literature review
Heterotopic ossification (HO) is the formation of osseous tissue outside the skeleton. HO in malignant tumors of the digestive tract is extremely rare, as is ossification in metastatic lesions from HO-negative...
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Comparison of diagnostic accuracy between [18F]FDG PET/MRI and contrast-enhanced MRI in T staging for oral tongue cancer
Integrated PET/MRI with [18F]FDG is advantageous in that it enables simultaneous PET and MR imaging with higher soft-tissue contrast, multiplanar image acquisition, and functional imaging capability without using...
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Open AccessA typical case of resected pancreatic hamartoma: a case report and literature review on imaging and pathology
Pancreatic hamartomas are rare entities and difficult to diagnose before resection. We report a case of resected pancreatic hamartoma and literature review of typical characteristics of the lesion.
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Pseudo-continuous arterial spin labeling MR images in Warthin tumors and pleomorphic adenomas of the parotid gland: qualitative and quantitative analyses and their correlation with histopathologic and DWI and dynamic contrast enhanced MRI findings
We investigated the correlation between tumor blood flow (TBF) and histopathologic features of Warthin tumors (WTs) and pleomorphic adenomas (PAs) to determine the TBF in the differential diagnosis of these tu...
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Open AccessCase report: IgG4-related mass-forming thyroiditis accompanied by regional lymphadenopathy
It has been recently accepted that IgG4-related thyroiditis is comparable to the Hashimoto and Riedel thyroiditis and Graves disease which are rich in IgG4-secreting plasma cells. Many physicians believe that ...
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A case of protein-losing enteropathy caused by sclerosing mesenteritis diagnosed with capsule endoscopy and double-balloon endoscopy
A 75-year-old man presented with abdominal distension, hypoproteinemia, ascites and a 35-mm mass in the small bowel mesentery. Laparotomy was performed, and he was diagnosed with sclerosing mesenteritis. His c...
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Acinar cell carcinoma of the pancreas in childhood
A 12-year-old Japanese girl with pancreatic acinar cell carcinoma is presented. She was referred to our hospital with upper abdominal pain on exercise. Computed tomography scan showed a 17 × 17 × 12 cm heterog...
