In the introduction the short history about the study of cavity healing was described. And the writer gave a name of fibrous cavity to the tuberculoma holding excavation in the second chapter.
The discussions were presented on the relations between cavity types, healing types and healing grades.
The writer analyzed the healing factors and inquired about the relation to the healing types.
When the cavity healing had been thought as incurable, even the excavation itself was regarded as a feature of healing. After many healed cases by encapsulation appeared, the conception of healing changed to the shunting off of the lesion. Recently the chemotherapy has greatly advanced, but the cavity healing of the most cases is still the shunting except few cases. The fact that the cavity treatment has converted to the resection by the advanced surgical technique with the aid of anaesthesiology and antiobiotics, shows also the difficulty of the healing of lesion itself. But a few cases of new healing type, the cicatric healing with carnification, appeared as seen in this paper. More the chemotherapy advances, more the healing type of cavity will change.
(I would like to express my gratitude to Dr. T. Nakazawa and Dr. T. Kojima, of the National Saitama Sanatorium, for his courtesy for the opportunity to examine the cases of S.172, S.219, and S.97 in autopsies.)
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