[Use of endoscopy for sacral resection: a clinical case].

A case of clinical application of endoscopy in the course of surgery for sacral resection is discussed. Video-assisted frontal approach was used to ligate internal ileac vessels and to detach the fore end of tumor. Subsequently, the sacrum was removed via back access. Unlike standard methods using trans- or extraperitoneal frontal approach, our procedure involved less trauma and was followed by a shorter rehabilitation period.

[Use of the carcinoembryonic antigen in the gastric juice for diagnosing pretumorous stomach diseases]. / Ispol'zovanie rakovo-émbrional'nogo antigena v zheludochnom soke dlia diagnostiki predopukholevykh zabolevanii zheludka.

Radioimmunologic procedures were employed in comparing the levels of carcino-embryonic antigen in the gastric juice, blood plasma and saliva in cases of stomach cancer, gastritis, polyposis and gastric ulcer. No correlation between the antigen levels in different biological fluids was established. It was found, however, that the assay of carcino-embryonic antigen level in gastric juice may be instrumental in detecting precancerous lesions of the stomach.