Abstract: The present invention pertains to an apparatus for containing material produced by a patient. The apparatus is comprised of a container having a first portion with a first cavity within which the anatomical material is held and an opening through which the anatomical material is provided to the first cavity. The apparatus is also comprised of a second portion with a second cavity in communication with the first cavity, and a removable seal disposed between the first cavity and the second cavity. Additionally, the apparatus is comprised of an immobilizing material disposed in the first portion, which when the seal is removed between the first cavity and second cavity mixes with patient material and immobilizes it. The present invention also pertains to a method for collecting anatomical material produced by a patient. The method comprises the steps of placing or collecting the anatomical material into a first cavity of a first portion of a container.