M. Katsumata

ORCID: 0009-0003-3626-0111
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About
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Research Areas
  • Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
  • Sarcoma Diagnosis and Treatment
  • Cancer and Skin Lesions
  • Sarcoidosis and Beryllium Toxicity Research
  • Inflammatory Myopathies and Dermatomyositis
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Genetic and rare skin diseases.
  • Lung Cancer Diagnosis and Treatment
  • Drug-Induced Adverse Reactions
  • Chemotherapy-related skin toxicity
  • Polyomavirus and related diseases
  • Respiratory and Cough-Related Research
  • Tumors and Oncological Cases
  • Pneumothorax, Barotrauma, Emphysema
  • Skin Diseases and Diabetes
  • Occupational exposure and asthma
  • Inhalation and Respiratory Drug Delivery
  • Pulmonary Hypertension Research and Treatments
  • Urologic and reproductive health conditions
  • Atomic and Subatomic Physics Research
  • Ocular Diseases and Behçet’s Syndrome
  • Dysphagia Assessment and Management
  • Advanced Radiotherapy Techniques
  • Myeloproliferative Neoplasms: Diagnosis and Treatment
  • Hydrogen's biological and therapeutic effects

Chiba University
2021-2024

Seirei Hamamatsu General Hospital
2020-2023

Hamamatsu University School of Medicine
1989-2022

Toho University
2021

Toho University Omori Medical Center
2021

Yokohama City University
2021

Tokyo Medical and Dental University
1989-1990

Tokyo Teishin Hospital
1990

The histological features of accessory tragi from 13 patients were analyzed. All the lesions showed numerous tiny mature hair follicles in various phases, while presence cartilage was not essential. Of importance prominent connective tissue framework subcutaneous fat that seemed to be one diagnostic criteria for tragi.

10.1111/j.1600-0560.1990.tb00086.x article EN Journal of Cutaneous Pathology 1990-08-01

We report a rare case of intraepidermal sebaceous carcinoma which occurred on the left upper arm an old woman. Light-microscopic findings revealed that almost all histopathological lesions were in epidermis and showed pagetoid spread. The tumor was well differentiated consisted germinative, transitional cells. Mitosis mild moderate pleomorphism observed. Ultrastructural lipid droplets cells although Sudan III staining failed to show any positive materials.

10.1159/000248026 article EN Dermatology 1990-01-01

Radiation-induced organizing pneumonia is a rare complication of radiation therapy for thoracic cancer. Carbon-ion radiotherapy, an emerging treatment modality early-stage lung cancer treatment, can also cause injuries. However, as cases radiation-induced caused by carbon-ion radiotherapy have not been reported, its clinical features remain unclear. A 69-year-old woman was referred to our hospital 11 months after being diagnosed with early due refractory pneumonitis induced radiotherapy. She...

10.1016/j.radcr.2023.11.012 article EN cc-by-nc-nd Radiology Case Reports 2023-11-22

To date, there is limited evidence on the effects of bronchodilators respiratory dynamics in chronic obstructive pulmonary disease (COPD). Dynamic chest radiography (DCR) a novel radiographic modality that provides real-time, objective and quantifiable kinetic data, including changes lung area (Rs), tracheal diameter, diaphragmatic kinetics ventilation during respiration, at lower radiation dose than used by fluoroscopic or CT imaging. However, therapeutic effect dual kinetics, such as wall...

10.1136/bmjresp-2024-002374 article EN cc-by-nc BMJ Open Respiratory Research 2024-08-01

A new follicular cyst was reported. The lower part of the wall composed both basophilic and shadow cells as seen in pilomatricoma, whereas upper consisted clear cells. Our case apparently derives from hair matrix outer root sheath.

10.1111/j.1600-0560.1989.tb00019.x article EN Journal of Cutaneous Pathology 1989-04-01

A 48-year-old woman was admitted to our hospital with acute respiratory failure. Chest computed tomography showed ground-glass opacity and patchy emphysematous lesions in both lungs. Corticosteroid therapy effective; however, the disease worsened tapering of corticosteroids. Bronchoalveolar lavage revealed hemosiderin-laden macrophages, video-assisted thoracic surgery diffuse interstitial fibrosis alveolar hemorrhage (DAH). There no evidence vasculitis nor autoimmune diseases. This patient...

10.2169/internalmedicine.1663-23 article EN Internal Medicine 2023-05-23

<b>Rationale:</b> Although lung macrophages (Mφ) correlate with pulmonary fibrosis (PF) pathogenesis, the effect of Mφ transplantation (PMT) on PF remains unclear. <b>Aim:</b> This study aimed to evaluate PMT PF. <b>Methods:</b> Bone marrow (BM) mononuclear cells wild-type (WT) mice were cultured <i>in vitro</i> prepare BM-derived Mφs (BMDM). BMDM or PBS administered intratracheally 7 days after bleomycin (BLM) administration in WT mice. The four defined groups P(PBS)+P, P+M(BMDM), B(BLM)+P,...

10.1183/13993003.congress-2023.pa2358 article EN 2023-09-09

<b>Rationale:</b> To date, there is limited evidence of the effects bronchodilators on respiratory dynamics in chronic obstructive pulmonary disease (COPD). Dynamic chest radiography (DCR) a novel radiographic modality that provides real-time, objective, and quantifiable kinetic data, including changes lung area, diaphragm kinetics, ventilation during respiration, at lower radiation dose than fluoroscopic or computed tomography imaging. <b>Aim:</b> This study aims to evaluate bronchodilator...

10.1183/13993003.congress-2023.pa2281 article EN cc-by-nc Imaging 2023-09-09

inhalation oxygen partial pressure), high-resolution CT, and treatment methods were compared in each group.Results: Ninety-seven patients (mean age 74.3 years) evaluated.All received pulsed corticosteroid therapy; 63 of 97 diagnosed with acute or subacute idiopathic interstitial pneumonia.In stepwise multivariate analysis, CCI (hazard ratio (HR), 1.377; 95% confidence interval (CI), 1.193 to 1.588; P < 0.01), serum lactate dehydrogenase (HR, 1.004; CI, 1.002 1.006; macrolide use 0. Mortality...

10.1111/resp.14150_966 article EN Respirology 2021-11-01
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