A case of lung adenocarcinoma with high CT number, high calcium concentration but no calcification
Kubota, K.; Furuse, K.; Yasui, K.; Kawahara, M.; Inada, K.; Yamamoto, S.
Nihon Kyobu Shikkan Gakkai Zasshi 31(1): 65-68
1993
ISSN/ISBN: 0301-1542 PMID: 8468822 Document Number: 406608
A 36-year-old woman with lung adenocarcinoma is reported. Chest X-ray film showed a high CT number, but no calcified lesion was detected. Histologic examination demonstrated no bone formation, calcification, or psammoma bodies. Calcium staining with Kossa method was negative. An elementary analysis with penetrating type electron microscopy and energy dispersion type analyzer showed high calcium concentration in the tumor. It was thought that the tumor showed a high CT number because of masked soluble calcium.
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