An unusual case of severe cervicofacial actinomycosis masquerading as pseudosarcomatous tumour of soft tissues of the head.

An unusual case of severe facial and scalp actinomycosis is described. A Papuan man presented with an ulcerative tumour that was progressively spreading on the left face and scalp. Biopsy reported pseudotumour on two occasions and just granulation tissue once. Non-operative treatment was frustrating until a discharge of sulphur granules led to the diagnosis of actinomycosis. The final diagnosis was made histologically after a careful search. This report highlights the usual and unusual points in the diagnosis and management of a case of actinomycosis.