Paraganglioma with radiographic dye: an interesting histopatholological finding

Extraadrenal paraganglioma makes up a dispersed neuroendocrine system which extends fromthe base of the skull down to the pelvic floor. Paraganglioma have been found in particularlyevery site in which normal paraganglia are known to occur. Herein, we present a typical caseof carotid body paraganglioma according to both histological and immunohistochemical findings.The presence of a large ribbon-like amphophilic to basophilic amorphous material which,according to the history of angiography, must result from the precipitation of angiographic dyemakes this entity unique and the first to be reported.