Distribution of intrapulmonary megakaryocytes.

The distribution of intrapulmonary megakaryocytes is equal in healthy persons, but altered in diseased persons, the highest counts being found in superior lobes (p = 0.0027). This may be explained by the altered blood supply to the lungs of diseased persons lying in bed. We recommend that lung sections should be taken from central areas of the superior lobes in order to standardize the sections and to compare results of future investigations on intrapulmonary megakaryocytes.