Twenty-year-old patient with polyarthritis since childhood showing cysts and ground glass attenuation on HRCT.

Fagundes MDC, Bianco T, Nunes DP, Ostroski TKD, Bridi GDP, Kawassaki AM, Barbas CSV, Mendonça LO, Barros SF, Kalil J, Shum AK, Escuissato DL