Related Experiment Video
Updated: Mar 13, 2026

Surgical Treatment of an Endolymphatic Sac Tumor
Published on: May 26, 2023
A Rare Cause of Hemifacial Spasm: Papillary Oncocytic Cystadenoma
1Department of Otorhinolaryngology, Başkent University School of Medicine, Ankara, Turkey.
Background:
Hemifacial spasm is a sudden, involuntary and synchronous spasm of the facial muscles. The most frequent cause of this condition is compression of the facial nerves due to vascular pathologies. The most commonly used method of treatment is Botulinum toxin injection. However, the gold standard treatment is surgical treatment.
Case Report:
A 64-year-old male patient with hemifacial spasms, which had occurred due to a rare parotid mass that had been surgically treated, is presented in this case.
Conclusion:
This case report demonstrates that longstanding parotid gland masses may compress the facial nerves and cause demyelination in the nerve and thus may cause spasms in the facial muscles.
More Related Videos
Related Concept Videos
Papillary Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen...
Vascular Spasm

