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A Case of Warthin’s Tumor Together with IgG4-Related Sialadenitis

Open Journal of Pathology 2024年第3期14卷 81-89页

作者： Ryogo Aoki Risa Ito Asuka Ohashi Riyoko Niwa Masashi Matsuyama Sachiko Oka Naomi Kawaguchi Toshimasa Sakakima Daichi Kodama naoki watanabe Daisuke Okamoto Takafumi Naiki Takuji Tanaka Department of Diagnostic Pathology (DDP) & Research Center of Diagnostic Pathology (RC-DiP) Gifu Municipal Hospital Gifu Japan Department of Central Clinical Laboratory Gifu Municipal Hospital Gifu Japan Department of Hematology Gifu Municipal Hospital Gifu Japan

Warthin’s tumor is the second most frequent neoplasm next to pleomorphic adenoma in the salivary gland. The tumor contains the epithelial oncocyte cells with the presence of rich-mitochondria and their surrounding abundant lymphocytes. A relatively new disease entity of IgG4-related disease frequently occurs in the salivary gland. However, the coexistence of Warthin’s tumor and IgG4-related disease is scarcely observed. We have recently experienced a rare case of Warthin’s tumor with IgG4-related sialadenitis. A 51-year-old man presented to our hospital, complaining of a mass with right submandibular tenderness and spontaneous pain. A computed tomography scan of the cervical region revealed a suspicion of lymph node proliferative disease, including malignant lymphoma. Elevated serum levels of IL-2R: 1843 U/ml (reference value 122 - 496 U/ml), IgG: 3430 mg/dl (reference value 861 - 1747 mg/dl), and IgG4: 3140 mg/dl (reference value 11 - 121 mg/dl) were observed. Other laboratory data showed within normal ranges. The cervical tumor was diagnosed as Warthin’s tumor by the findings of fine-needle aspiration cytology and biopsy examination. Immunohistochemistry revealed numerous IgG4- and IgG-positive cells with fibrosis surrounding the epithelial component of Warthin’s tumor, suggesting IgG4-rerated sialadenitis. Finally, we diagnosed the cervical tumor as Warthin tumor with IgG4-related sialadenitis. This is the second report describing a case of Warthin’s tumor with possible involvement of IgG4-related sialadenitis.

关键词： Warthin’s Tumor Sialadenitis IgG4-Related Disease Immunohistochemistry

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Characteristics of multiple nodules in a patient with pulmonary Langerhans cell histiocytosis: A case report

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World Journal of Clinical Cases 2019年第17期7卷 2519-2525页

作者： Nobuhiro Kanaji Yoshimasa Tokunaga Ryou Ishikawa naoki watanabe Norimitsu Kadowaki Department of Internal Medicine Division of HematologyRheumatology and Respiratory MedicineFaculty of MedicineKagawa UniversityKagawa 761-0793Japan Department of General Thoracic Surgery Breast and Endocrinological SurgeryFaculty of MedicineKagawa UniversityKagawa 761-0793Japan Department of Diagnostic Pathology Faculty of MedicineKagawa UniversityKagawa 761-0793Japan

BACKGROUND The common computed tomography findings of pulmonary Langerhans cell histiocytosis (PLCH) are multiple cysts and micronodules predominantly in middle to upper lung ***-cystic nodules and large nodules are atypical findings of *** SUMMARY The patient was a 48-year-old Japanese man with a smoking history (20 cigarettes/d,28 years) and no *** nodules existed in all lung lobes,predominantly in the right lower *** nodules seemed to be distributed randomly,and others were adjacent to *** nodules were solid;some small ones were *** largest nodule was 22 mm in *** metastatic lung tumors were suspected,thoracoscopic lung biopsy led to the diagnosis of *** 6 months after he quit smoking,all nodules had almost *** investigated the characteristics of nodules at diagnosis in *** 349 nodules in total,116 were in upper and 199 were in lower ***-six (27.5%) were cystic;the remaining 253 (72.5%) were *** prevalence of cystic nodules was higher in upper lobes than in lower lobes (right upper 37.5% vs lower 18.2%,P = 0.0068;left upper 48.1% vs lower 24.4%,P = 0.0078).The average size (dia.) of cystic nodules was smaller than that of noncystic nodules (5.03 mm vs 7.40 mm,respectively,P < 0.0001).CONCLUSION Although multiple non-cystic nodules including large nodules (over 20 mm) are atypical,PLCH should be included in differential *** presence of small cystic nodules predominantly in upper lobes and asymptomatic situation are also important for differential diagnoses to distinguish from metastatic cancers.

关键词： Langerhans cell histiocytosis Multiple Non-cystic Nodule Distribution Size Case report

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Recent advances in treatment of follicular lymphoma: efficacy of PI3Kα/δ inhibitor (TQ-B3525)

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2341-2343页

作者： Takuya watanabe Department of Internal Medicine and Gastroenterology Watanabe Internal Medicine Aoyama ClinicNiigata-city 9502002Japan

The commented study reports the results of monotherapy using TQ-B3525,a novel phosphatidylinositol-3 kinase(PI3K)inhibitor developed in China,in patients with refractory/relapsed follicular lymphoma(r/r FL).

关键词： PI3K lymphoma treatment

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Paraneoplastic syndromes associated with lung cancer

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World Journal of Clinical Oncology 2014年第3期5卷 197-223页

作者： Nobuhiro Kanaji naoki watanabe Nobuyuki Kita Shuji Bandoh Akira Tadokoro Tomoya Ishii Hiroaki Dobashi Takuya Matsunaga Department of Internal Medicine Division of Endocrinology and Metabolism Hematology Rheumatology and Respiratory MedicineFaculty of MedicineKagawa University

Paraneoplastic syndromes are signs or symptoms that occur as a result of organ or tissue damage at locations remote from the site of the primary tumor or metastases. Paraneoplastic syndromes associated with lung cancer can impair various organ functions and include neurologic, endocrine, dermatologic, rheumatologic, hematologic, and ophthalmological syndromes, as well as glomerulopathy and coagulopathy(Trousseau's syndrome). The histological type of lung cancer is generally dependent on the associated syndrome, the two most common of which are humoral hypercalcemia of malignancy in squamous cell carcinoma and the syndrome of inappropriate antidiuretic hormone secretion in small cell lung cancer. The symptoms often precede the diagnosis of the associated lung cancer, especially when the symptoms are neurologic or dermatologic. The proposed mechanisms of paraneoplastic processes include the aberrant release of humoral mediators, such as hormones and hormone-like peptides, cyto-kines, and antibodies. Treating the underlying cancer is generally the most effective therapy for paraneoplastic syndromes, and treatment soon after symptom onset appears to offer the best potential for symptom improvement. In this article, we review the diagnosis, potential mechanisms, and treatments of a wide variety of paraneoplastic syndromes associated with lung cancer.

关键词： Paraneoplastic syndrome Small cell lung cancer Non-small cell lung cancer Symptom Diagnosis Treatment Endocrine Neurologic Hematologic Trousseau’s syndrome

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Field induced Chern insulating states in twisted monolayer–bilayer graphene

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Chinese Physics B 2024年第6期33卷 69-73页

作者：王政文韩英卓 Kenji watanabe Takashi Taniguchi 姜宇航毛金海 School of Physical Science and CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of SciencesBeijing 100049China College of Materials Science and Optoelectronic Technology Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China Advanced Materials Laboratory National Institute for Materials ScienceTsukuba 305-0044Japan

Unraveling the mechanism underlying topological phases, notably the Chern insulators(Ch Is) in strong correlated systems at the microscopy scale, has captivated significant research interest. Nonetheless, Ch Is harboring topological information have not always manifested themselves, owing to the constraints imposed by displacement fields in certain experimental configurations. In this study, we employ density-tuned scanning tunneling microscopy(DT-STM) to investigate the Ch Is in twisted monolayer–bilayer graphene(t MBG). At zero magnetic field, we observe correlated metallic *** under a magnetic field, a metal–insulator transition happens and an integer Ch I is formed emanating from the filling index s = 3 with a Chern number C = 1. Our results underscore the pivotal role of magnetic fields as a powerful probe for elucidating topological phases in twisted Van der Waals heterostructures.

关键词： Chern insulators strong correlation effects two-dimensional van der Waals heterostructure density-tuned scanning tunneling microscopy(DT-STM)

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Clinical Utility of Tumor Markers

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Open Journal of Pathology 2021年第2期11卷 38-57页

作者： Taro Mizuno Takayuki Goto Kota Shimojo naoki watanabe Takuji Tanaka Department of Medical Oncology Nagoya Medical Center Nagoya Japan Department of Hematology Gifu Municipal Hospital Gifu City Japan Department of Internal Medicine Gifu Municipal Hospital Gifu City Japan Department of Diagnostic Pathology & Research Center of Diagnostic Pathology Gifu Municipal Hospital Gifu City Japan Center of Genomic Medicine Gifu Municipal Hospital Gifu City Japan

Tumor markers comprise a wide spectrum of biomacromolecules excessively synthesized by a variety of neoplastic cells. These markers can be endogenous products of highly active metabolites from malignant neoplastic cells or the products of newly activated genes. Ideally, tumor markers should be highly sensitive, specific, and reliable with a high prognostic value and organ specificity. In addition, they should reflect the tumor stage. However, no tumor markers identified thus far have all of these characteristics. Nevertheless, most tumor markers show excellent clinical relevance for monitoring the efficacy of a variety of therapies. We herein review how to use the recommended tumor markers to diagnose malignancies, such as gastrointestinal carcinoma, liver cancer, bile duct/pancreatic cancer, lung cancer, breast cancer, gynecologic cancer, and urologic cancer.

关键词： Tumor Marker Neoplastic Cells Tumor Stage Prognosis Monitor Therapeutic Effects

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Esophageal Carcinogenesis

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Open Journal of Pathology 2014年第4期4卷 151-170页

作者： naoki watanabe Masahito Shimizu Takahiro Kochi Yohei Shirakami Takuji Tanaka Department of Diagnostic Pathology (DDP) & Research Center of Diagnostic Pathology (RC-DiP) Gifu Municipal Hospital Gifu Japan Department of Internal Medicine/Gastroenterology Gifu University Graduate School of Medicine Gifu Japan Department of Tumor Pathology Gifu University Graduate School of Medicine Gifu Japan

Esophageal cancer is the sixth leading cause of cancer death and remains one of the least survivable cancers. Esophageal cancers show wide variations in incidence in different population, suggesting that environmental or lifestyle risk factors could be controlled to reduce risk of these diseases. There are two major histopathologic types (squamous cell carcinoma and adenocarcinoma) of esophageal epithelial malignancy. Recently, the rate of adenocarcinoma is increasing in developed countries: in the United States, 50% or more is adenocarcinoma and, in about 70%, the increase especially in a white male serves as adenocarcinoma. Esophageal adenocarcinoma develops in the lower esophagus. In contrast, in Japan, the increase in adenocarcinoma is not clear and most (90%) of esophageal cancers are squamous cell carcinoma. Such squamous cell carcinoma occurs onto the middle part esophagus mostly, and 60% or more of the whole esophagus cancer also develops in the middle and upper parts. These differences also influence the treatment results. The scope of this article is to discuss carcinogenesis in the esophagus by giving an overview about its histopathological characteristics and molecular mechanisms.

关键词： Esophageal Neoplasms Preneoplastic Lesions Squamous Cell Carcinoma Adenocarcinoma Risk Factor

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Dynamic Hand Gesture-Based Person Identification Using Leap Motion and Machine Learning Approaches

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Computers, Materials & Continua 2024年第4期79卷 1205-1222页

作者： Jungpil Shin Md.AlMehedi Hasan Md.Maniruzzaman Taiki watanabe Issei Jozume School of Computer Science and Engineering The University of AizuAizuwakamatsuFukushima965-8580Japan Department of Computer Science&Engineering Rajshahi University of Engineering&TechnologyRajshahi6204Bangladesh

Person identification is one of the most vital tasks for network security. People are more concerned about theirsecurity due to traditional passwords becoming weaker or leaking in various attacks. In recent decades, fingerprintsand faces have been widely used for person identification, which has the risk of information leakage as a resultof reproducing fingers or faces by taking a snapshot. Recently, people have focused on creating an identifiablepattern, which will not be reproducible falsely by capturing psychological and behavioral information of a personusing vision and sensor-based techniques. In existing studies, most of the researchers used very complex patternsin this direction, which need special training and attention to remember the patterns and failed to capturethe psychological and behavioral information of a person properly. To overcome these problems, this researchdevised a novel dynamic hand gesture-based person identification system using a Leap Motion sensor. Thisstudy developed two hand gesture-based pattern datasets for performing the experiments, which contained morethan 500 samples, collected from 25 subjects. Various static and dynamic features were extracted from the handgeometry. Randomforest was used to measure feature importance using the Gini Index. Finally, the support vectormachinewas implemented for person identification and evaluate its performance using identification accuracy. Theexperimental results showed that the proposed system produced an identification accuracy of 99.8% for arbitraryhand gesture-based patterns and 99.6% for the same dynamic hand gesture-based patterns. This result indicatedthat the proposed system can be used for person identification in the field of security.

关键词： Person identification leap motion hand gesture random forest support vector machine

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Aging-induced memory loss due to decreased N1-acetyl-5-methoxykynuramine,a melatonin metabolite,in the hippocampus:a potential prophylactic agent for dementia

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Neural Regeneration Research 2025年第6期20卷 1705-1706页

作者： Kazuki watanabe Atsuhiko Hattori Department of Immunobiology Institute of Development Aging and CancerTohoku UniversitySendaiMiyagiJapan Department of Sport and Wellness College of Sport and WellnessRikkyo UniversityNiizaSaitamaJapan

Melatonin(N-acetyl-5-methoxytryptamine)is known as the hormone of darkness because it is synthesized at night and involved in regulating the circadian *** hormone is primarily synthesized by the vertebrate pineal gland,but is ubiquitous among invertebrates,unicellular organisms,plants,and even cyanobacteria(Hattori and Suzuki,2024).Melatonin is well-conserved evolutionarily and possesses several physiological functions,such as immune response,bone and glucose metabolism,and memory formation besides regulating the circadian rhythm.

关键词： metabolism primarily agent

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Moving doubly heavy baryon in a strongly coupled plasma via holography

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Chinese Physics C 2024年第8期48卷 42-55页

作者： Xuan Liu Jia-Jie Jiang Xun Chen Mitsutoshi Fujita Akira watanabe School of Nuclear Science and Technology University of South ChinaHengyang 421001China School of Mathematics and Physics University of South ChinaHengyang 421001China

Gauge/gravity duality is used to study the properties of the doubly heavy baryon(QQq)at finite rapidity and temperature in heavy-ion *** investigate the impact of rapidity on string breaking and screening of QQq and compare these effects with the results for QQ¯in *** reveal that the string-breaking distances of QQq and QQ¯are close in the confined state,and the effects of rapidity and temperature on the string breaking are not *** interesting result shows that QQq cannot be determined at sufficiently high temperatures and ***,QQ¯can exist under any conditions as long as the separation distance is sufficiently ***,the screening distances of QQq and QQ¯are compared at finite rapidity and *** on the above analysis,we infer that QQ¯is more stable than QQq at finite rapidity and temperature.

关键词： holographic QCD QGP heavy quark

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