[Giant mucocele of the maxillary sinus. Apropos of a case]

A young woman presented with a very large primary mucocele of the right maxillary sinus having a tumoral appearance as it had destroyed the bony walls of the sinus. The various proposed etiopathogenic theories fort these mucoceles are discussed, emphasis being placed mainly on their possible inflammatory origin. The contribution of computed tomography for differential diagnosis is stressed, the quality of the images obtained and the data supplied being of invaluable assistance.