Abstract: particularly a kit (K), which consists basically of a syringe (1), filled with silicone gel (2) (PMDS), which is supplied with or without a needle (3), and is appropriate for the stereotaxy procedure, showing an excellent radiological contrast and macroscopic locator in a histopathological test. The kit is completely sterile, without any type of negative or harmful interference in the nuclear medicine techniques, radiological localization of wounds and routine histological tests, and is packed in a pre-shaped recipient (4) or in a plastic blister pack (5). The kit may contain other components for use, such as gloves, cotton, gauze and similar (not demonstrated), everything made of disposable material.