FIELD: medicine.
SUBSTANCE: method involves determining tumor topometric values, introducing puncture needle to the tumor and taking cytological material. The puncture needle is fixed and cytological material is taken using syringe. Then, syringe containing the cytological material is substituted for syringe containing viscoelastic material from methylcellulose derivative and slowly introduced into the puncture canal gradually withdrawing the needle.
EFFECT: reduced risk of hemorrhagic complications; prevented puncture canal tissue against insemination with tumor cells.
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