x ray and or other imaging means for one month to six months or even longer turning now to the drawings fig1 a depicts a tissue marker made in accordance with the teachings of the first incorporated disclosure it is provided in the form of a solid rod 10 its interior is filled with a contrast agent or other pharmaceutical agent fig1 b depicts marker 10 in solid rod form fig1 c depicts a hydrogel based sealant 12 made in accordance with the teachings of the second incorporated disclosure in this embodiment it is of hollow cylindrical or tubular construction and is made of hydrogels fig1 d depicts sealant 12 in solid rod form fig1 e and 1f depict the basic conception behind the present disclosure which teaches the combination of marker 10 and sealant 12 of the incorporated disclosures the combination marker and sealant member 14 of fig1 e has an interior 10 formed of the fig1 b solid rod marker and an exterior housing 12 formed of the fig1 c sealant in fig1 e marker 10 is co extensive with sealant 12 in fig1 f interior marker 10 is again formed in the solid rod structure of fig1 b but said solid rod 10 has an extent less than that of sealant 12 so that it is encapsulated therein.