Pleomorphic adenoma of the lacrimal gland

Case contributed by A.Prof Frank Gaillard

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Case Discussion

MRI through the orbits demonstrates an extraconal mass in the upper outer quadrant which is of intermediate T1 and T2 signal, and enhances brightly following administration of contrast. 

The mass is pushing the globe inferomedially and importantly is distorting the globe (best seen on coronal image) which indicates the mass is firm. 

Features are strongly suggestive of a lacrimal gland tumour and pleomorphic adenoma is the most likely entity. Differential includes:

  • lacrimal gland tumours
  • nerve sheath tumours
  • metastases : usually less well defined
  • lymphoma : usually softer (do not distort the globe)
  • orbital haemangioma : more commonly intraconal

Pleomorphic adenoma of the lacrimal gland was histologically proven on resection. 

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Case information

rID: 9064
Case created: 15th Mar 2010
Last edited: 24th Nov 2015
System: Head & Neck
Inclusion in quiz mode: Included

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