Freitas, A.C.Barbosa, T.Macedo, F.2014-02-192014-02-192013-09Nascer e Crescer 2013; 22(3): 189-1900872-0754http://hdl.handle.net/10400.16/1573We present a case of a 6-year-old child in whom a chest x-ray is performed for a respiratory infection. An inverted comma opacity was seen in the right upper lobe, typical of an azygos fissure. This is one of the numerous anatomic variants of the azygos vein.porAzygos fissureazygos lobejournal article