start-ver=1.4 cd-journal=joma no-vol=59 cd-vols= no-issue=2 article-no= start-page=46 end-page=47 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=20190628 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Highlights: Focus on Immunodeficiency-Associated Lymphoproliferative Disorders en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=SatoYasuharu en-aut-sei=Sato en-aut-mei=Yasuharu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil=Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University kn-affil= en-keyword=EBV-positive mucocutaneous ulcer kn-keyword=EBV-positive mucocutaneous ulcer en-keyword=Immunodeficiency-associated LPD kn-keyword=Immunodeficiency-associated LPD en-keyword=MTX kn-keyword=MTX en-keyword=immunosuppressive drugs kn-keyword=immunosuppressive drugs en-keyword=spontaneous regression kn-keyword=spontaneous regression END start-ver=1.4 cd-journal=joma no-vol=59 cd-vols= no-issue=2 article-no= start-page=64 end-page=6471 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=20190628 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=A review of EBV-positive mucocutaneous ulcers focusing on clinical and pathological aspects en-subtitle= kn-subtitle= en-abstract= kn-abstract=Epstein-Barr virus (EBV)-positive mucocutaneous ulcers (EBVMCUs) were first described as a lymphoproliferative disorder in 2010. Clinically, EBVMCUs are shallow, sharply circumscribed, unifocal mucosal or cutaneous ulcers that occur in immunosuppressed patients, including those with advanced age-associated immunosenescence, iatrogenic immunosuppression, primary immune disorders, and HIV/AIDS-associated immune deficiencies. In general, patients exhibit indolent disease progression and spontaneous regression. Histologically, EBVMCUs are characterized by the proliferation of EBV-positive, variable-sized, atypical B-cells. According to conventional histopathologic criteria, EBVMCUs may diagnosed as lymphomas. However, EBVMCUs are recognized as pseudomalignant lesions because they spontaneously regress without anti-cancer treatment. Therefore, overtreatment must be carefully avoided and multilateral differentiation is important. In this article, we reviewed previously reported EBVMCUs focusing on their clinical and pathological aspects in comparison with other EBV-positive B-cell neoplasms. en-copyright= kn-copyright= en-aut-name=IkedaTomoka en-aut-sei=Ikeda en-aut-mei=Tomoka kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=GionYuka en-aut-sei=Gion en-aut-mei=Yuka kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=YoshinoTadashi en-aut-sei=Yoshino en-aut-mei=Tadashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=SatoYasuharu en-aut-sei=Sato en-aut-mei=Yasuharu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= affil-num=1 en-affil=Department of Pathology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=2 en-affil=Division of Pathophysiology, Okayama University Graduate School of Health Sciences kn-affil= affil-num=3 en-affil=Department of Pathology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=4 en-affil=Department of Pathology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= en-keyword=EBV-positive mucocutaneous ulcer kn-keyword=EBV-positive mucocutaneous ulcer en-keyword=clinical features kn-keyword=clinical features en-keyword=immunosuppression kn-keyword=immunosuppression en-keyword=pathological features kn-keyword=pathological features END start-ver=1.4 cd-journal=joma no-vol=59 cd-vols= no-issue=4 article-no= start-page=168 end-page=174 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=20191222 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Are there primary intraocular lymphomas that do not develop into central nervous system lymphomas? en-subtitle= kn-subtitle= en-abstract= kn-abstract=Primary intraocular lymphomas frequently develop into central nervous system lymphomas and vice versa. This study reviewed 22 consecutive patients with primary intraocular lymphoma diagnosed by immunostaining of vitrectomy cell blocks, and examined whether they developed central nervous system lymphoma. Seventeen patients developed central nervous system lymphoma: 3 patients developed intraocular and central nervous system lymphoma simultaneously, 9 patients developed central nervous system lymphoma 1 month to 5 years (median, 3 months) after intraocular lymphoma, and 5 patients developed central nervous system lymphoma preceding the diagnosis of intraocular lymphoma by 3 months to 9 years and 8 months (median, 1.5 years). In contrast, 5 patients did not develop central nervous system lymphoma: 2 patients did not develop local recurrence or central nervous system lymphoma in the follow-up period of 5 years and 11 years, respectively, after vitrectomy alone without additional local or systemic treatment. The remaining 3 patients with intraocular lymphoma had insufficient follow-up periods to determine the prognosis. The results of CD5 immunostaining of vitrectomy specimens were found in pathology reports of 8 patients: 3 patients with CD5-positive large cells and 4 patients with CD5-negative large cells developed central nervous system lymphoma. In summary, only a small number of patients did not develop central nervous system lymphoma based on long-term follow-up after vitrectomy alone. CD5 was not a marker of central nervous system involvement in this study population. en-copyright= kn-copyright= en-aut-name=MatsuoToshihiko en-aut-sei=Matsuo en-aut-mei=Toshihiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=TanakaTakehiro en-aut-sei=Tanaka en-aut-mei=Takehiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= affil-num=1 en-affil=Ophthalmology, Okayama University Hospital and Okayama University Medical School kn-affil= affil-num=2 en-affil=Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= en-keyword=Intraocular lymphoma kn-keyword=Intraocular lymphoma en-keyword= central nervous system lymphoma kn-keyword= central nervous system lymphoma en-keyword=CD5 kn-keyword=CD5 en-keyword=vitrectomy cell block kn-keyword=vitrectomy cell block en-keyword=diffuse large B-cell lymphoma kn-keyword=diffuse large B-cell lymphoma END