Benign lymphoepithelial lesion or Mikulicz' disease is a type of benign enlargement of the parotid and/or lacrimal glands.

Historically, bilateral parotid and lacrimal gland enlargement was characterized by the term Mikulicz's disease if the enlargement appeared apart from other diseases.

If it was secondary to another disease, such as tuberculosis, sarcoidosis, lymphoma, and Sjögren's syndrome, the term used was Mikulicz's syndrome.

Both names derive from Jan Mikulicz-Radecki, the Polish surgeon best known for describing these conditions.

[1][2] In more recent times, the terms "Mikulicz's disease" and "Mikulicz's syndrome" were viewed as ambiguous and outdated by some sources.