Labial gland biopsy--a simple diagnostic procedure for Sjogren's syndrome.

Sjogren's syndrome is a collagen vascular disorder with multisystem. Its presentation may be similar to other diseases from which it can be differentiated by certain investigations--one of the most important being the labial salivary gland biopsy. A case report of Sjogren's syndrome is presented and the technique of the labial salivary gland biopsy is described.