All Stories

  1. Differentiation of Oral Spindle Cell and Pleomorphic Lipomas From Their Mimics via Retinoblastoma Status Through Immunohistochemistry and Fluorescence In Situ Hybridization

    Article • Journal of Oral Pathology and Medicine, June 2025, Wiley

    Hiromasa Hasegawa

  2. A Rare Case of Lipidized Fibrous Histiocytoma of the Oral Cavity

    Article • Cureus, April 2025, Springer Science + Business Media

    Hiromasa Hasegawa

  3. The Expression of Neuroendocrine Markers in a Small Subset of Ameloblastoma with Implications of Clusterin

    Article • Cells, February 2025, MDPI AG

    Hiromasa Hasegawa

  4. Primary intraosseous squamous cell carcinoma with pagetoid spread arising in periapical odontogenic epithelium of the maxilla

    Article • Medical Molecular Morphology, January 2025, Springer Science + Business Media

    Hiromasa Hasegawa

  5. Tenosynovitis with psammomatous calcification—Analysis by scanning electron microscopy and energy‐dispersive x‐ray spectroscopy

    Article • Pathology International, December 2024, Wiley

    Hiromasa Hasegawa

  6. Developmental Anomalies in Human Teeth: Odontoblastic Differentiation in Hamartomatous Calcifying Hyperplastic Dental Follicles Presenting with DSP, Nestin, and HES1

    Article • Journal of Developmental Biology, January 2024, MDPI AG

    Hiromasa Hasegawa

  7. Sclerosing Odontogenic Carcinoma With a Prominent Clear Cell Component Mimicking Odontogenic Clear Cell Carcinoma: An Extremely Rare Case With a Fatal Clinical Outcome

    Article • Cureus, January 2024, Springer Science + Business Media

    Hiromasa Hasegawa

  8. An unusual case of hobnail hemangioma mimicking pyogenic granuloma

    Article • Journal of Oral and Maxillofacial Surgery Medicine and Pathology, January 2024, Elsevier

    Hiromasa Hasegawa

  9. Comprehensive cornified envelope protein profile of odontogenic keratocysts clarifies the characteristics of non‐keratinized oral epithelium

    Article • Journal of Oral Pathology and Medicine, July 2023, Wiley

    Hiromasa Hasegawa

  10. Carcinoma Cuniculatum of the Maxilla Arising From Oroantral Fistula: A Report of an Extremely Rare Case

    Article • Cureus, April 2023, Springer Science + Business Media

    Hiromasa Hasegawa

  11. Physico-Mechanical Properties of a Newly Developed Base Material Containing Mineral Trioxide Aggregate

    Article • Coatings, March 2023, MDPI AG

    Hiromasa Hasegawa

  12. Maxillary extraskeletal Ewing sarcoma concurrent with non-small cell lung cancer: A case report and review of the literature

    Article • Journal of Oral and Maxillofacial Surgery Medicine and Pathology, January 2023, Elsevier

    Hiromasa Hasegawa

  13. Composite hemangioendothelioma in the cervical spine with kaposiform hemangioendothelioma features in an elderly patient: a case report

    Article • BMC Geriatrics, December 2022, Springer Science + Business Media

    Hiromasa Hasegawa

  14. Peripheral dentinogenic ghost cell tumor in the mandibular anterior region

    Article • Journal of Oral and Maxillofacial Surgery Medicine and Pathology, July 2022, Elsevier

    Hiromasa Hasegawa

  15. A Case of Oral Glomeruloid Hemangioma Without Systemic Conditions

    Article • Cureus, January 2022, Springer Science + Business Media

    Hiromasa Hasegawa

  16. Contribution of transglutaminases and their substrate proteins to the formation of cornified cell envelope in oral mucosal epithelium

    Article • European Journal Of Oral Sciences, January 2021, Wiley

    Hiromasa Hasegawa

  17. Lymphoepithelioma-like cholangiocarcinoma with Epstein–Barr virus infection treated by radiofrequency ablation

    Article • Clinical Journal of Gastroenterology, January 2021, Springer Science + Business Media

    Hiromasa Hasegawa

  18. Mammaglobin protein localization and gene expression in the salivary glands

    Article • Journal of Oral Science, January 2021, Nihon University School of Dentistry

    Hiromasa Hasegawa

  19. Homeobox transcription factor engrailed homeobox 1 is a possible diagnostic marker for adenoid cystic carcinoma and polymorphous adenocarcinoma

    Article • Pathology International, December 2020, Wiley

    Hiromasa Hasegawa

  20. Pharyngeal Deposits Comprising Salivary Mucin in Tube-fed Elderly Patients: MUC2 and MUC7 Immunoreactivity

    Article • Dysphagia, November 2020, Springer Science + Business Media

    Hiromasa Hasegawa

  21. Loss of Basal Cell Character in Regenerating Oral Squamous Epithelium with Altered Expression of Desmoglein 1, Desmocollin 3 and Keratin 19

    Article • Journal of Hard Tissue Biology, January 2019, Society for Hard Tissue Regenerative Biology

    Hiromasa Hasegawa

  22. Histopathological evaluation of oral membranous substance in bedridden elderly persons without oral intake in Japan

    Article • Gerodontology, November 2018, Wiley

    Hiromasa Hasegawa

  23. A case of adenomatoid odontogenic tumor with unusual presentation extending from gingiva to periodontal space

    Article • Journal of Oral and Maxillofacial Surgery Medicine and Pathology, November 2018, Elsevier

    Hiromasa Hasegawa

  24. Ectopic transglutaminase 1 and 3 expression accelerating keratinization in oral lichen planus

    Article • Journal of International Medical Research, September 2018, SAGE Publications

    Hiromasa Hasegawa

  25. Phenotypic alteration of basal cells in oral lichen planus; switching keratin 19 and desmoglein 1 expression

    Article • Journal of Oral Science, January 2018, Nihon University School of Dentistry

    Hiromasa Hasegawa

  26. A retrospective multi-institutional study on the clinical categorization and diagnosis of oral lichen planus

    Article • Journal of Oral and Maxillofacial Surgery Medicine and Pathology, September 2017, Elsevier

    Hiromasa Hasegawa

  27. Cell division cycle 34 is highly expressed in hepatitis C virus-positive hepatocellular carcinoma with favorable phenotypes

    Article • Biomedical Reports, May 2017, Spandidos Publications

    Hiromasa Hasegawa

  28. Characteristics of Clinical and Imaging Findings of Epidermoid Cysts under the Skin of the Mental Region

    Article • Journal of Hard Tissue Biology, January 2017, Society for Hard Tissue Regenerative Biology

    Hiromasa Hasegawa

  29. Migration and Differentiation of GFP-transplanted Bone Marrow-derived Cells into Experimentally Induced Periodontal Polyp in Mice

    Article • International Journal of Medical Sciences, January 2016, Ivyspring International Publisher

    Hiromasa Hasegawa

  30. Onset of Tuberculosis from a Pulmonary Latent Tuberculosis Infection during Antiviral Triple Therapy for Chronic Hepatitis C

    Article • Internal Medicine, January 2016, Japanese Society of Internal Medicine

    Hiromasa Hasegawa

  31. Pathological Analysis of Cell Differentiation in Cholesterol Granulomas Experimentally Induced in Mice

    Article • International Journal of Medical Sciences, January 2016, Ivyspring International Publisher

    Hiromasa Hasegawa

  32. Role of extracytoplasmic function sigma factors in biofilm formation of Porphyromonas gingivalis

    Article • BMC Oral Health, January 2015, Springer Science + Business Media

    Professor Kazuyuki Ishihara, Hiromasa Hasegawa

  33. Notch as a Possible Cell Differentiation Factor in Pleomorphic Adenomas

    Article • International Journal of Medical Sciences, January 2015, Ivyspring International Publisher

    Hiromasa Hasegawa

  34. Carcinoma in-situ of the oral mucosa: Its pathological diagnostic concept based on the recognition of histological varieties proposed in the JSOP Oral CIS Catalog

    Article • Journal of Oral and Maxillofacial Surgery Medicine and Pathology, July 2014, Elsevier

    Hiromasa Hasegawa

  35. Heterogeneous and abnormal localization of desmosomal proteins in oral intraepithelial neoplasms

    Article • Journal of Oral Science, January 2014, Nihon University School of Dentistry

    Hiromasa Hasegawa

  36. Wnt Signaling as a Possible Promoting Factor of Cell Differentiation in Pleomorphic Adenomas

    Article • International Journal of Medical Sciences, January 2014, Ivyspring International Publisher

    Hiromasa Hasegawa

  37. An Aberrant Parotid Gland Duct With a Cutaneous Orifice, Accompanied by Sialolithiasis

    Article • Journal of Oral and Maxillofacial Surgery, January 2013, Elsevier

    Hiromasa Hasegawa

  38. Heat Shock Protein27 Expression and Cell Differentiation in Ameloblastomas

    Article • International Journal of Medical Sciences, January 2013, Ivyspring International Publisher

    Hiromasa Hasegawa

  39. Primary Intraosseous Odontogenic Carcinoma Arising from a Dentigerous Cyst

    Article • Journal of Hard Tissue Biology, January 2013, Society for Hard Tissue Regenerative Biology

    Hiromasa Hasegawa

  40. Subcutaneous Basic FGF-Injection Accelerates the Development of Mandibular Condyle of Newborn Mice during Lactation Period

    Article • Journal of Hard Tissue Biology, January 2013, Society for Hard Tissue Regenerative Biology

    Hiromasa Hasegawa

  41. Factors affecting the formation of membranous substances in the palates of elderly persons requiring nursing care

    Article • Gerodontology, November 2012, Wiley

    Hiromasa Hasegawa

  42. Primary Giant Cell Tumor of Soft Tissue in the Mental Region

    Article • Journal of Hard Tissue Biology, January 2012, Society for Hard Tissue Regenerative Biology

    Hiromasa Hasegawa

  43. Immunohistochemical localization of notch signaling molecules in ameloblastomas

    Article • European Journal of Medical Research, January 2011, Springer Science + Business Media

    Hiromasa Hasegawa

  44. Expression of Chromogranin A in the Mouse Dental Pulp and Periodontal Tissues

    Article • Journal of Hard Tissue Biology, January 2011, Society for Hard Tissue Regenerative Biology

    Hiromasa Hasegawa

  45. High TSC22D3 and low GBP1 expression in the liver is a risk factor for early recurrence of hepatocellular carcinoma

    Article • Experimental and Therapeutic Medicine, January 2011, Spandidos Publications

    Hiromasa Hasegawa

  46. Immunohistochemical Observation of HSP27 in Ameloblastomas

    Article • Journal of Hard Tissue Biology, January 2011, Society for Hard Tissue Regenerative Biology

    Hiromasa Hasegawa

  47. Advanced Alveolar Bone Resorption Treated With Implants, Guided Bone Regeneration, and Synthetic Grafting: A Case Report

    Article • Implant Dentistry, December 2010, Wolters Kluwer Health

    Hiromasa Hasegawa

  48. Measurement of Enamel Width Diameter as Basis of Stripping in Orthodontic Treatment

    Article • Journal of Hard Tissue Biology, January 2010, Society for Hard Tissue Regenerative Biology

    Hiromasa Hasegawa

  49. Roles of the Primary Cilium Component Polaris in Synchondrosis Development

    Article • Journal of Dental Research, June 2009, SAGE Publications

    Hiromasa Hasegawa

  50. Low Frequency of bcl-2 Expression in Large Non-Polypoid Colonic Neoplasms

    Article • Journal of International Medical Research, August 2004, SAGE Publications

    Hiromasa Hasegawa

  51. Histopathological Evaluation of Subcutaneous Tissue Reaction in Mice to a Calcium Hydroxide Paste Developed for Root Canal Fillings

    Article • Journal of International Medical Research, August 2004, SAGE Publications

    Hiromasa Hasegawa

  52. Detection of Hepatitis C Virus Antibody and RNA in Hemostatic Gauze Used for Dentistry

    Article • Infection Control, February 2003, Cambridge University Press

    Hiromasa Hasegawa

  53. Clinicopathological Characteristics in Large, Non-Polypoid Colorectal Adenomas with Granule-Aggregating Appearance

    Article • Journal of International Medical Research, April 2002, SAGE Publications

    Hiromasa Hasegawa

  54. Characteristics of Bone Morphogenetic Protein-Induced Chondroid Bone: Histochemical, Immunohistochemical and in Situ Hybridization Examinations

    Article • Journal of International Medical Research, December 2001, SAGE Publications

    Hiromasa Hasegawa

  55. Evaluation of Apoptosis as a Factor Affecting the Growth of Non-Polypoid Colorectal Adenomas

    Article • Journal of International Medical Research, December 2001, SAGE Publications

    Hiromasa Hasegawa

  56. Odontogenic myxoma showing active epithelial islands with microcystic features

    Article • Journal of Oral and Maxillofacial Surgery, October 2001, Elsevier

    Hiromasa Hasegawa

  57. Phylogenetic investigation for the risk of hepatitis C virus transmission to surgical and dental patients

    Article • Journal of Viral Hepatitis, March 2001, Wiley

    Hiromasa Hasegawa

  58. A case of anaplastic large cell (Ki‐1) lymphoma of B‐cell phenotype, occurring in Waldenström’s macroglobulinemia

    Article • Pathology International, October 1999, Wiley

    Hiromasa Hasegawa

  59. Mixed‐type liposarcoma of the oral cavity: a case with unusual features and a long survival

    Article • Journal of Oral Pathology and Medicine, March 1999, Wiley

    Hiromasa Hasegawa

  60. A Case of Extracranial Atypical Meningioma Involving Maxillofacial Region.

    Article • Oral Medicine & Pathology, January 1999, The Japanese Society for Oral Pathology

    Hiromasa Hasegawa

  61. Diffuse Large B-cell Lymphoma with Multinodular Proliferation Appearing in the Parotid Lymph Node.

    Article • Oral Medicine & Pathology, January 1998, The Japanese Society for Oral Pathology

    Hiromasa Hasegawa

  62. Hyperkeratosis and atypical proliferation appearing in the lining epithelium of a radicular cyst. Report of a case

    Article • Journal of Cranio-Maxillofacial Surgery, July 1993, Elsevier

    Hiromasa Hasegawa

  63. Squalane as a possible carrier of bone morphogenetic protein

    Article • Biomaterials, January 1993, Elsevier

    Hiromasa Hasegawa

  64. Experimental study on osteoconductive properties of a chitosan-bonded hydroxyapatite self-hardening paste

    Article • Biomaterials, January 1992, Elsevier

    Hiromasa Hasegawa

  65. A rare variant of acinic cell carcinoma of the upper lip: A case report and review of the literature

    Article • Oral Surgery Oral Medicine Oral Pathology, January 1990, Elsevier

    Hiromasa Hasegawa

  66. Fate of 45Ca-labeled calcium hydroxide in a root canal filling paste embedded in rat subcutaneous tissues

    Article • Journal of Endodontics, May 1987, Elsevier

    Hiromasa Hasegawa

  67. Ultrastructural study of initial calcification in the rat subcutaneous tissues elicited by a root canal filling material

    Article • Oral Surgery Oral Medicine Oral Pathology, March 1987, Elsevier

    Hiromasa Hasegawa

  68. Ultrastructural study of calcinosis universalis with dermatomyositis

    Article • Journal of Cutaneous Pathology, April 1986, Wiley

    Hiromasa Hasegawa