[1st report on indirect lymphography using iotasul in the head and neck region].

The early results in 29 patients with tumours in the head and neck are described, on whom indirect lymphography with the water-soluble contrast medium Iotasul had been carried out (experimental contrast medium, Schering AG). After careful sub-epidermal injection of about 12 ml contrast, either lateral to the eye or in the region of the chin, lymph vessels were seen in 25 patients and lymph nodes in 20. These were demonstrated by conventional radiography or by xero-radiography. There were no local or generalised reactions.