To the Editor:

We published the article “Usefulness of Systemic CT Scanning in the Detection of Malignant Lymphadenopathy” in the November 2011 issue of Medicine.¹ It has come to our attention that we made an error, and 143 cases of the 339 cases analyzed did not fit the criteria for patient selection described in the Patients and Methods section. In addition to the 143 cases without complete data, 5 cases originally categorized in the benign group because of benign pathologic results turned out to have active malignancies.

When we re-evaluated the corrected data in logistic regression analysis, we found that only 2 of the 6 covariates identified in the paper as independently predicting malignancy were significant. As a result, we wish to retract this article. We regret any problems our article and actions may have caused and we retract this article from the literature.

Kunimoto Ichikawa, MD

Koichi Sugimoto, MD, PhD

Yasushi Isobe, MD, PhD

Ryohei Kuwatsuru, MD, PhD

Makoto Sasaki, MD, PhD

Itsuko Horiguchi, DDS, PhD

Norio Komatsu, MD, PhD

Juntendo University School of Medicine

Tokyo, Japan

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