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[A case of lung adenocarcinoma with high CT number, high calcium concentration but no calcification]
1Department of Internal Medicine, Kinki Central Hospital for Chest Diseases, Osaka, Japan.
Nihon Kyobu Shikkan Gakkai Zasshi
|January 1, 1993
Abstract:
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.