Affiliations: [a] Department of General Surgery, Hanyang University Medical Center 222, Wangsimni-ro, Seongdong-gu, Seoul, Korea | [b] Department of Pathology, Hanyang University Medical Center 222, Wangsimni-ro, Seongdong-gu, Seoul, Korea
Correspondence:
[*]
Corresponding author: Min Sung Chung,
Department of General Surgery, Hanyang University Medical Center 222, Wangsimni-ro, Seongdong-gu, Seoul, Korea. E-mail:
[email protected]
Abstract: Idiopathic granulomatous mastitis (IGM) and Tuberculosis mastitis (TM) are rare inflammatory diseases of the breast that can clinically mimic
malignancy causing misdiagnosis as breast cancer. We present a rare case of
bilateral granulomatous mastitis with a different etiology. An initial
lesion developed in the right breast was diagnosed as IGM, which was treated
with antibiotics and surgery. A subsequent lesion developed in the
contralateral breast 5 months later and was diagnosed as TM, which also
completely responded to antituberculosis medication without surgical
excision. Differential diagnosis was made using the results of the
polymerase chain reaction for tuberculosis (TBC-PCR) of both of the breast
lesions in addition to typical pathologic findings of IGM in the right
breast and an antituberculosis medication response in the left breast. To
the best of our knowledge, this is the first case of bilateral granulomatous
mastitis with a different etiology.
