Antibody-dependent cell-mediated cytotoxicity (ADCC) exhibited by peripheral blood leukocytes was used as a criterion for assessing immune competence of groups of noncancerous individuals and of treated and untreated cancer patients. The results show that, as a group, leukocytes of nontreated cancer patients exhibited significantly lower ADCC than that exhibited by leukocytes of noncancerous individuals. However, the ADCC of leukocytes from cancer patients under treatment approximated that of normals. Thus, using ADCC as criterion, the results indicate that as a group, cancer patients under treatment tend to exhibit restored immune competence.

This report deals with a consecutive series of 156 mandibular fractures that were managed during a three-year period. The age and sex incidence are presented and the causative factors of the trauma are discussed. The fractures are classified according to anatomic site and laterality. The majority of the patients were treated with closed reduction techniques and the reasons for open reduction are tabulated. The results and complications of the treatment are enumerated. A conservative technique is described for open reduction of fracture-dislocations of the condylar head.

• Fractures of the orbital floor are frequently accompanied by diplopia. There are other bony injuries that may produce similar symptoms; however, these are rare. We will describe a case in which a fracture of the roof of the orbit, essentially involving the anterior cranial fossa, produced entrapment with diplopia. A six-month follow-up demonstrated excellent surgical and functional results.