Extremely Well Differentiated Papillary Adenocarcinoma of the Lung with Prominent Cilia Formation |
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| Authors: | Shigeo Nakamura Takashi Koshikawa Tsuneko Sato Kayoko Hayashi Taizan Suchi |
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| Affiliation: | Department of Pathology and Clinical Laboratories, Aichi Cancer Center Hospital, Nagoya.;Institute for Medical Sci-ence of Aging, Aichi Medical University, Aichi. |
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| Abstract: | We describe a 54-year-old woman with primary pulmonary adenocarcinoma showing a characteristic papillary architecture and prominent cilia formation. Immunohistochemically, the tumor cells were positive for carcinoembryonic antigen (CEA), epithelial membrane antigen (EMA) and Leu Ml, and negative for lactoferrin and surfactant apoprotein. An ultrastructural study also indicated differentiation toward bronchial surface epithelial cells. To our knowledge, this type of neoplasm has not been reported as peripheral-type adenocarcinoma of the lung. Acta Pathol Jpn 42: 745–750, 1992. |
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| Keywords: | Lung Peripheral-type adenocarcinoma Cilia Electron microscopy |
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