Supported by the Savannah and Barry French Poodle Memorial Fund
University of Pennsylvania School of Veterinary Medicine
Last Modified: August 21, 2005
Michael H. Goldschmidt, MSc, BVMS, MRCVS, Diplomate ACVP Professor and Head, Laboratory of Pathology and Toxicology Chief, Surgical Pathology Department of Pathobiology
Frances S. Shofer, PhD, Adjunct Associate Professor of Epidemiology and Biostatistics
Meibomian glands are also known as tarsal glands. They are modified sebaceous glands which are located on the inner surface of the eye. These holocrine glands have a duct which opens at the eyelid margin.
The histologic classification of Meibomian tumors includes the following:
The vast majority of Meibomian gland tumors are benign. Carcinomas are uncommon. Only information of Meibomian adenomas will be discussed below.
|Female Spayed||1201||36% (33%)|
|Male Castrated||831||24% (21%)|
|(Normal Population %)|
| Breeds at
|German Shorthaired Pointer||37||0.0020||1.8||1.3||2.4|
|West Highland White Terrier||54||0.0003||1.7||1.3||2.2|
| Breeds at
|Jack Russell Terrier||7||0.0166||0.43||0.20||0.89|
Clinical Presentation/Physical Exam Findings
Meibomian adenomas, ductal adenomas and epitheliomas are normally slow growing and easily recognized because of their location. Wide surgical excision may be curative, but recurrence may occur due to incomplete excision.
Meibomian gland carcinomas are very rare. When they do occur, they are locally destructive and may metastasize via the lymphatics to regional lymph nodes.
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