The following specimen is taken from the lacrimal gland.
(Note: Answer the questions before clicking the picture for labels) 

• What are the visible features?
  Answer

  Presence of inflammatory cells with non-caseating
  granulomas and Langharn's giant cells between the 
  ductules of the lacrimal gland. Click on the picture for
  the labels.

  What is the most likely diagnosis?

  
  a
  Answer

  Sarcoidosis.