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Case Reports in Pathology
Volume 2015 (2015), Article ID 135684, 6 pages
http://dx.doi.org/10.1155/2015/135684
Case Report

Occult Breast Lobular Carcinoma with Numerous Circulating Tumor Cells in Peripheral Blood

1Department of Diagnostic Pathology, Juntendo University Nerima Hospital, Tokyo 177-8521, Japan
2Department of Radiology, Juntendo University Nerima Hospital, Tokyo 177-8521, Japan
3Department of Breast Surgery, Juntendo University Nerima Hospital, Tokyo 177-8521, Japan

Received 2 April 2015; Revised 20 May 2015; Accepted 4 June 2015

Academic Editor: Janina Kulka

Copyright © 2015 Kanako Ogura et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We experienced a very rare case of occult breast lobular carcinoma with numerous circulating tumor cells in peripheral blood. The diagnosis was very difficult because there were no symptoms of breast cancer and the preceding chief complaints such as general fatigue and weight loss or abnormality of peripheral blood findings were suggestive of a hematological disease. We could make a correct diagnosis of this case by checking the findings of complete blood count and bone marrow biopsy at the same time using immunohistochemistry.