A non-chromaffin paraganglioma of the lung.

Abstract

Paraganglioma occurs approximately as frequently in the suprarenal glands as in other sites. In the neck these tumours originate most frequently in the carotid or the jugular body, and in the ear from the tympanic ganglion. In the chest they grow from the aortic or the vagal bodies. They arise in the abdominal cavity in the para-aortal chromaffin tissue and the remnants of the organs of Zuckerkandl. Besides these usual sites they may exceptionally appear elsewhere-namely, in the femoral region, in the orbit, in the tongue muscles, in the diaphragm, and in the jugular vein (Pryse-Davies, Dawson, and Westbury, 1964; Hepple-ston, 1958; Smithers and Gowing, 1965). Genetically and functionally paragangliomata