Background. Periosteal fasciitis is rare in the head and neck. We beli
eve only two cases of fasciitis-induced erosion through the mandibular
cortical plate have previously been reported. Results. Management of
a case of periosteal fasciitis with bone erosion at the mandibular ang
le is reported in a 38-year-old man. Conclusions. Misdiagnosis of fasc
iitis in the past has led to inappropriate management and unnecessary
morbidity. The principles of diagnosis and management of this unusual
and confusing disorder are highlighted. (C) 1994 John Wiley & Sons, In
c.