Aspergillosis of the paranasal sinuses.

Aspergillosis of the paranasal sinuses is a well-established clinical entity which has recently been classified into non-invasive and invasive forms with distinct sub-divisions of both types. Two cases are described, both highlighting potential serious complications of the disease as well as the importance of adequate medical and surgical treatment in effecting a favourable outcome. The disease is reviewed and the question as to whether cases necessarily fall into previously-defined clinical and pathological categories is also discussed.