
J Neuropsychiatry Clin Neurosci 20:302-308, August 2008
doi: 10.1176/appi.neuropsych.20.3.302
© 2008 American Neuropsychiatric Association
Hippocampal and Amygdalar Volumes in Breast Cancer Survivors with Posttraumatic Stress Disorder
Eriko Hara, M.D.,
Yutaka Matsuoka, M.D., Ph.D.,
Yuko Hakamata, Ph.D.,
Mitsue Nagamine, D.Sc., Ph.D.,
Masatoshi Inagaki, M.D., Ph.D.,
Shigeru Imoto, M.D., Ph.D.,
Koji Murakami, M.D., Ph.D.,
Yoshiharu Kim, M.D., Ph.D. and
Yosuke Uchitomi, M.D., Ph.D.
Received March 20, 2007; revised May 16, 2007; accepted May 18, 2007. Dr. Hara is affiliated with the Section of Psychiatry and Behavioral Science at Tokyo Medical and Dental University Graduate School in Tokyo. Drs. Hara, Matsuoka, Hakamata, Nagamine, and Kim are affiliated with the Department of Adult Mental Health at NIMH, National Center of Neurology and Psychiatry, in Tokyo. Drs. Hara, Matsuoka, Hakamata, Nagamine, Inagaki, and Uchitomi are affiliated with the Psycho-Oncology Division at the Research Center for Innovative Oncology, National Cancer Center Hospital East, in Chiba, Japan. Dr. Inagaki is affiliated with the Center for Suicide Prevention at NIMH, National Center of Neurology and Psychiatry, in Tokyo. Dr. Imoto is affiliated with the Department of Surgery at Kyorin University School of Medicine in Tokyo. Dr. Murakami is affiliated with the PET Center at Dokkyo University School of Medicine in Tochigi, Japan. Address correspondence to Yosuke Uchitomi, M.D., Ph.D., Psycho-Oncology Division, Research Center for Innovative Oncology, National Cancer Center Hospital East, 6-5-1, Kashiwanoha, Kashiwa, Chiba 277-8577, Japan; yuchitom{at}east.ncc.go.jp (e-mail).
Although smaller hippocampi and amygdalae were found in cancer survivors with intrusions, associations between cancer-related posttraumatic stress disorder (PTSD) and these volumes are unknown. The authors performed MRI volumetric analyses of these regions in 15 cancer survivors with PTSD, 15 cancer survivors without PTSD, and 15 healthy comparison subjects. The authors also examined the correlation between PTSD symptom scores of the Impact of Event Scale and these volumes in the PTSD group. These volumes were not significantly different among the groups, but the intrusion score was inversely associated with the hippocampal volume. Results suggest intrusions, not PTSD diagnosis, might be associated with hippocampal volume.
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