Significance of detection of EBV-encoded mRNA on bone marrow biopsy tissues of hemophagocytic syndrome

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Author:
HE Yao-xin(Hematopathology Research Lab, Department of Pathology, Peking University Health Science Center, Beijing 100191, China)
HUANG Xir(Hematopathology Research Lab, Department of Pathology, Peking University Health Science Center, Beijing 100191, China)
ZHOU Chun-ju()
SUN Lin(Hematopathology Research Lab, Department of Pathology, Peking University Health Science Center, Beijing 100191, China)
LI Min(Hematopathology Research Lab, Department of Pathology, Peking University Health Science Center, Beijing 100191, China)
XUE Xue-min(Hematopathology Research Lab, Department of Pathology, Peking University Health Science Center, Beijing 100191, China)
D UA N Ze-jun(Hematopathology Research Lab, Department of Pathology, Peking University Health Science Center, Beijing 100191, China)
ZHOU Li(Hematopathology Research Lab, Department of Pathology, Peking University Health Science Center, Beijing 100191, China)
GAO Zi-fen(Hematopathology Research Lab, Department of Pathology, Peking University Health Science Center, Beijing 100191, China)
Journal Title:
Journal of Leukemia & Lymphoma
Issue:
Volume 20, Issue 09, 2011
DOI:
10.3760/cma.j.issn.1009-9921.2011.09.007
Key Word:
Lymphohistiocytosis, hemophagocytic;Bone marrow examination;Biopsy;EBER

Abstract: Objective To investigate the diagnostic significance of different pathology techniques (Immunohistochemistry and ISH) to detect EBV on bone marrow biopsy tissues of hemophagocytic syndrome. Methods Histological,immunohistochemical and in situ hybridization were used to study the hemophagocytic features and expression of LMP-1, EBER and other markers. Results 25 out of 51 cases (49.0 %) showed an active proliferation growth pattern while other 12 cases (23.5 %) demonstrated a deterioration morphological character compared with their same age group. The left 14 cases (27.5 %) showed a normal myeloproliferative pattern. 91.4 % (32/35) expressed CD68/KP-1 and 89.5 % (17/19) cases expressed CD68/PG-M1, which showed an abnormal increase of monocytes. 26 out of 51 cases (51.0 %) were positive for EBER, while EBER and immunohistochemistry on LMP-1 were detected simultaneously in 41 cases. The EBER were positive in 19 cases (46.3 %) but none for LMP-1 (P =0.000). Conclusion Hypoplasia or hemophagocytic features could be detected on bone marrow biopsy tissues of hemophagocytic syndrome, which might be slightly difficult to diagnose. So immunohistochemistry would be essential. Meanwhile, the detection of EBER is more helpful than LMP-1 for diagnosis.

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