PT - JOURNAL ARTICLE AU - Nino-Murcia, M AU - Rao, V M AU - Mikaelian, D O AU - Som, P TI - Acute sinusitis mimicking antrochoanal polyp. DP - 1986 May 01 TA - American Journal of Neuroradiology PG - 513--516 VI - 7 IP - 3 4099 - http://www.ajnr.org/content/7/3/513.short 4100 - http://www.ajnr.org/content/7/3/513.full SO - Am. J. Neuroradiol.1986 May 01; 7 AB - Three cases of antral sinusitis that presented in an unusual fashion are reported. In each case, the inflamed, swollen sinus mucosa became redundant and prolapsed into the nasal cavity through a widened sinus ostium, mimicking the findings of an antrochoanal polyp. The cases represent the first report in the radiographic literature of this unusual manifestation of maxillary sinusitis.