[Pathohistology of necrotizing sialometaplasia in parotid glands (author's transl)].

Under the descriptive term necrotizing sialometaplasia a lesion (infarct) is described in the minor salivary glands of the mouth, mucous glands in the nose and in the maxillary sinus. Identical changes are seen in the parotid gland after surgical treatment. In the German literature there is no report on necrotizing sialometaplasia or infarction of salivary gland. In this paper 6 infarcts of the parotid gland are reported. The pathohistologic picture is described, the proposed etiopathogenic factors are discussed. The diagnostic problems between the infarct of salivary glands and squamous carcinoma and low grade mucoepidermoid tumours were pointed out.