It is disclosed a probe for use through a working channel of a bronchoscope comprising a catheter body having a proximal end and a distal end, the body having an outside diameter of less than 2.65 mm such that it may pass through a working channel of a bronchoscope, a tool lumen extending through the catheter body, an optical assembly, usable to communicate visual imagery data to a monitor of an optical scope system, and a tool passable through said tool lumen and extendable from the distal end of the catheter body.