[Cervicofacial actinomycosis. Apropos of 2 atypical locations].

Cervico-facial actinomycosis is a chronic bacterial disease caused by actinomycetes. The diagnosis may be made on the specific anatomo-pathological appearance of the granulomas and be confirmed by anaerobic culture of the germs. The authors report two atypical cases: the first is a case of a thyroglossal pseudocyst, the second that of adenoidal vegetations in an adult. Treatment with Penicillin G or V for six weeks produced a favourable response. The various clinical forms of the condition described in the literature, should encourage the physician to include bacteriological testing for actinomycetes among his investigations.