A surgical access assembly (100) is disclosed that is configured and dimensioned for positioning within an opening in tissue providing access to and internal body cavity to facilitate the passage of a surgical instrument into an internal work site. The surgical access assembly includes first and second arms (110,112) and third and fourth arms (138,140). The first and second arms and the third and fourth arms are configured and dimensioned for relative movement such that the surgical access assembly is reconfigurable between a first configuration, wherein a first transverse dimension (W1) is defined, and a second configuration wherein a second transverse dimension (W2) is defined. The first transverse dimension is smaller than the second transverse dimension.
