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Resorption of calcification in primary pulmonary tuberculosis
  1. J. B. Morrison
  1. Abergele Chest Hospital, North Wales


    During a long-term follow-up of 10 to 17 years on 383 children aged 2 months to 15 years suffering from primary pulmonary tuberculosis with consolidation-collapse of lung segments, apparent calcification was noted to have disappeared in whole or in part from the lungs and/or lymph nodes of 68 children. This finding was most common in those under 6 years of age on entry to the study, 23·4% compared with 4·5% over six years.

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