3.6 Rhinosinusitis
To our knowledge, hardly anything is known about rhinosinusitis in athletes. Gelardi mentions in his study that 3 % of swimmers had an acute rhinosinusitis 38 and one other study describes sinonasal mucosal hypertrophy in divers, possibly due to pressure differences 49. However, to our knowledge, no study has investigated the presence of chronic rhinosinusitis (CRS) in the athletic population, although this lies within the line of expectation since infection and atopy are considered to be risk factors for the development of CRS 21.