Abstract: An endoscope device particularly useful as an anoscope, includes three sections each of the configuration of a segment of a cylinder. Two of the sections are pivotable to each other to a tubular position wherein the three sections define a tubular endoscope insertable into a body cavity for examination, or to an open position wherein the two pivotable sections define a retractor for retracting tissue in the body cavity to facilitate performing a clinical treatment therein. The device further includes a mandrel receivable within the sections of the endoscope when in their tubular positions to facilitate the insertion of the endoscope into the body cavity.