[Polyvinylpyrrolidone granuloma--differential diagnosis of rare soft tissue tumors in the area of the maxilla].

A 68 year old woman with a polyvinylpyrrolidone-granuloma is presented. This rare tumour was seen after local injections of Depot-Impletol. Since we learned that PVP can produce such local tumours we have seen six cases. The clinical and histological diagnosis is very difficult, and may easily be confused with malignancy.