A visualization system includes an obturator assembly and an endoscope. The obturator assembly includes two body halves defining a longitudinal split line. Each of the two body halves includes a housing portion and an elongate member portion extending distally from the housing portion. The two body halves define a longitudinal bore extending between proximal and distal ends thereof. The endoscope is configured for insertion into the longitudinal bore of the obturator assembly, wherein at least a portion of the obturator assembly is transparent to permit visualization of tissue with the endoscope.