Instrument and apparatus systems for medical diagnostic and treatment use consisting of electromagnetic sensors and related computer hardware and data management software sold as a unit; Computerized medical recording and analysis apparatus for the diagnosis and treatment of cancer and diseases of the lung, liver, kidney, and other thoracic anatomy; Medical device and surgical instruments for use in diagnosis and surgery of lungs, liver, kidney, and other thoracic anatomy; Computer displays and computer monitors and controllers therefor used in direct association with medical diagnosis apparatus during the process of diagnosis of a condition of an individual; Medical apparatus, namely, forceps, needles, brushes for endoscopic procedures, sheaths for endoscopic procedures, and steerable curettes; Endobronchial and transthoracic pulmonary navigation instruments that employ electromagnetic localizers for virtual fly-throughs and navigation on three-dimensional and four-dimensional datasets, which are used to diagnose and treat lung cancer and diseases; Medical and surgical catheters