Specimen collection cassette for retrieving tissue samples from a fluid stream generated during a medical/surgical procedure

A specimen collection cassette for a medical fluid collection system. A housing defines a first void space and a second void space, and an outlet opening in fluid communication with the first and second void spaces. An aperture may be within a wall separating the first and second void spaces with the aperture providing fluid communication between the first and second void spaces. First and second fittings receive a suction line for drawing fluid into the first and second void spaces, respectively. A fluid communication path is established from the first fitting to the outlet opening through the first void space, aperture, and the second void space, and a bypass fluid communication path is established from the second bore to the outlet opening through the second void space. The cassette is operable in one or both of a tissue sample collection mode and a bypass mode.