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Pathol Int. 2001 May;51(5):396-401.

Intravenous leiomyomatosis of the uterus with multiple pulmonary metastases associated with large bullae-like cyst formation.

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  • 1Divisions of Pathology, Second Hospital of Nippon Medical School, Kanagawaken, Japan.


We present a case of uterine intravenous leiomyomatosis associated with multiple pulmonary metastases with bullae-like cystic change. A 53-year-old woman who had undergone hysterectomy 5 years previously underwent an operation for multiple pulmonary nodules with bullae formation. After resection of several large bullae, a subsequent extirpation of the pulmonary nodules was performed, and a pathological examination showed multiple leiomyomatous nodules with occasional cystic change. A review of the previous slides of the uterus and immunohistochemical analysis of the proliferating ability using anti-Ki-67 and anti-proliferating cell nuclear antigen (PCNA) antibodies were performed. Proliferating cells of the uterus had very few mitotic figures for their high cellularity, and the labeling indices of Ki-67 and PCNA indicated very low levels in both uterine neoplasm and pulmonary nodules. From these findings, an intravenous leiomyomatosis associated with multiple pulmonary metastases was diagnosed.

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