Pseudomelanosis duodeni: report of eight cases.

K. Wang, H. J. Lin, C. L. Perng, H. Chiang, C. T. Lee, F. Y. Chang, S. D. Lee

研究成果: 雜誌貢獻文章同行評審

7 引文 斯高帕斯(Scopus)


Pseudomelanosis duodeni is an uncommon endoscopic sign characterized by diffuse small black spots on the first and second portions of the duodenum. It occurs predominantly in female and elderly patients and is linked to chronic illnesses and related medications. Between 1988 and 1994, the authors saw eight patients with pseudomelanosis duodeni. To evaluate the nature of the pigments, special staining was performed in seven cases. Iron stain was strongly positive in three cases. Electron microscopy was performed in two cases. This revealed amorphous bodies within macrophage lysosomes in one case and angular crystals in another case. These tests suggest that in pseudomelanosis duodeni iron metabolism may be impaired and iron is pooled within macrophages.

頁(從 - 到)632-634
期刊Journal of the Formosan Medical Association = Taiwan yi zhi
出版狀態已發佈 - 10月 1995

ASJC Scopus subject areas

  • 醫藥 (全部)


深入研究「Pseudomelanosis duodeni: report of eight cases.」主題。共同形成了獨特的指紋。