Tohoku J. Exp. Med., 1998, 186 (1)

Failure in Detection of Epstein-Barr Virus and Cytomegalovirus in Specimen Obtained by Fine Needle Aspiration Biopsy of Thyroid in Patients with Subacute Thyroiditis

KOUKI MORI, KATSUMI YOSHIDA,1 TADAO FUNATO,1 TOMONORI ISHII,1 TAKASHI NOMURA,2 HIROSHI FUKUZAWA, NORIYO SAYAMA, HIRONOBU HORI, SADAYOSHI ITO and TAKESHI SASAKI1

The Second Department of Internal Medicine and 1Department of Clinical and Laboratory Medicine, Tohoku University School of Medicine, Sendai 980-8574, and 2Department of Medicine, Yamagata City Hospital Saiseikan, Yamagata 990-0042

  • To study the possible role of viral infection in the etiology of subacute thyroiditis (SAT), we measured serum virus-specific antibodies to measles, rubella, mumps, type I herpes, chicken pox, human parvovirus B19 and cytomegalovirus (CMV) in 10 patients with SAT during the course of illness. In spite of the presence of IgG to each virus in more than 70% of patients, no significant changes in the IgG titers were observed except those to measles, rubella, chicken pox or CMV in only 10% of patients, respectively. Then we examined the presence of virus DNA in specimens of 9 patients with SAT obtained by fine-needle aspiration biopsy (FNAB) of the thyroid. DNA was amplified to detect that of Epstein-Barr virus and CMV by polymerase chain reaction. However, none of them were detected in all the specimens. Whereas previous studies suggest the involvement of viral infection in the pathogenesis of SAT, we failed to demonstrate significant changes in serum antiviral antibody titers or to detect viral DNA in the specimens obtained by FNAB of the thyroid. Thus further studies are clearly required to establish the definite role of viral infection in the pathogenesis of SAT.
    Key words--- subacute thyroiditis; viral infection; serology; polymerase chain reaction
    © 1998 Tohoku University Medical Press

    Tohoku J. Exp. Med., 1998, 186, 13-17
    Address for reprints: Kouki Mori, M.D., The Second Department of Internal Medicine, Tohoku University School of Medicine, 1-1 Seiryomachi, Aoba-ku, Sendai 980-8574, Japan.

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