[B-cell differential factor (IL-6) in peripheral mononuclear cells in viral hepatitis B infections]

B-cell differential factor (BCDF) activities were determined in 58 patients with various types of hepatitis B. In comparison with normal subjects, BCDF activities were significantly increased in patients with FH and CAH (P less than 0.01), markedly decreased in HBsAg carriers (P less than 0.01) and presented no change in patients with CPH and AH. It is interesting that there was a significant positive correlation between BCDF activity and serum titer of anti-HBC or serum globulin levels. No correlation was observed between BCDF activity and serum anti-HBs levels. It is suggested that abnormal BCDF activity might attribute to aberration of immunoregulation of HBV infections.

[Treatment of 100 patients with small cell lung cancer]

100 patients with small cell lung cancer were treated in Peking Union Medical College Hospital from 1963 through 1987. The five year survival rate in patients received combined treatment (resection + chemotherapy+radiotherapy, resection+chemotherapy or resection+radiotherapy,) was 18.52% (5/27). It was better than patients received nonsurgical treatment (chemotherapy,radiotherapy or chemotherapy+radiotherapy, 58 patients). And also it was better than patients received surgical resection only (11 patients). This advantage was especially marked in patients with lesion of IIIa stage. The five year survival rate in this group was 26.31%(5/19). It was suggested that combined method (resection+chemotherapy+radiotherapy) is the first choice for the treatment of small cell lung cancer.

Computed tomography of rounded atelectasis

High resolution CT of a fixed-inflated air-dried lung was obtained from a patient with rounded atelectasis. The dense periphery of the mass was shown to correspond to an invagination of the pleura, and the central lucency to slightly aerated atelectatic lung parenchyma.