Japanese Journal of Clinical Oncology, Vol 28, Issue 11 705-708, Copyright © 1998 by Foundation for Promotion of Cancer Research
J Horiguchi, Y Iino, S Aiba, H Itoh, Y Tanahashi, T Ikeya, H Shiozaki, T Yokoe and Y Morishita
A phyllodes tumor often grows rapidly and occasionally contains microcysts;
however, the tumor rarely shows a morphologically intracystic pattern. We
experienced a rare case of a phyllodes tumor with a solid mass growing into
the cyst. A 62-year-old female noticed a tumor in her right breast in
January 1995. The tumor grew rapidly and she visited our out-patient clinic
in February 1995. On physical examination, a 10 x 8 cm, well defined and
movable mass with a smooth surface was palpated in the upper outer quadrant
of the right breast. Mammography showed a large tumor shadow in the upper
outer quadrant of the right breast without any microcalcification.
Ultrasonography revealed a large cystic shadow with a low echoic lesion and
solid component with heterogeneous internal echo in the cyst. Under general
anesthesia, the tumor was widely excised. The resected specimen was 11.5 x
11 x 11 cm in size and the tumor was not invasive to surrounding tissues.
Old bloody fluid was contained within the cyst. The gross appearance showed
papillary process protrusions into a central cystic cavity. Histological
examination revealed a borderline case of phyllodes tumor. Two years after
the operation, she is doing well without any recurrence.
ORIGINAL ARTICLE
Phyllodes tumor showing intracystic growth: a case report
Second Department of Surgery, Gunma University School of Medicine, Maebashi, Japan.
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