Abstract
A 27-year-old woman noticed a left breast tumor in June 1998 and visited our hospital on July 1, 1998. A 2.0×2.0cm left breast mass in the A area was palpable and suggestive of fibroadenoma. Three months later, the tumor had grown, and was obtained by aspiration cytology biopsy, determined class III therefore, excisional biopsy was performed to rule out malignancy on December 14, 1998. The tumor was surrounded by thin capsule and consisted of relatively dense small round tubules. The connective tissue was scarce, however, mature collagen fibers were present. The tubules did not exhibit the complete two-cell layer pattern, and attenuated myoepithelium was seen. Also, mitosis and lactating changes were not observed, and the background mammary gland was normal. The pathological diagnosis was tubular adenoma. Cases of tubular adenoma of the breast are very rare and only 36 cases including ours have been reported in Japan. Since tubular adenoma of the breast is a benign disease, excisional biopsy is adequate for curative therapy, and no recurrence has been reported.
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Schedule a callMore From: Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association)
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