Invasive radiology in the diagnosis of mediastinal masses. Use of fine needle for aspiration biopsy.

A review is presented of the radiological and surgical procedures used for diagnosing mediastinal masses. The radiological examinations evaluate the size, shape and site of the mediastinal lesion, whereas the surgical methods provide tissue diagnosis. Fine needle aspiration biopsy which is an invasive radiological procedure has the advantage of obtaining cytological diagnosis. The method is described and the results of 56 biopsies in 38 patients are discussed in detail. The success rate is 76% and increasing steadily as further experience is gained. The complications are of a light nature and with the exception of one patient no treatment was necessary.