Related Experiment Video
Updated: Jan 12, 2026

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
Published on: March 1, 2015
Familial Bell's Palsy: Patient With Facial Synkinesis and Bilateral Recurrence of Facial Palsy
Karen Inzirillo1, Roxana M Dragomir2, Marc A Swerdloff1,2
1Neurology, Marcus Neuroscience Institute, Boca Raton Regional Hospital, Baptist Health South Florida, Boca Raton, USA.
Abstract:
We present a case of Bell's palsy involving bilateral recurrence in a family history of multiple affected individuals. Bell's palsy, also referred to as facial palsy (FP), has been associated with infectious, ischemic, and familial cluster occurrences, yet its etiology remains largely unclear. Familial clustering, also referred to as familial Bell's palsy, may indicate an underlying anatomical abnormality of the facial canal or an immune-mediated mechanism contributing to a hereditary predisposition. However, this potential link remains understudied. Regardless of the underlying cause, the diagnosis and management of FP follow standardized protocols. Our patient contributes to the growing body of evidence suggesting that familial FP may be a more prevalent cause than previously recognized. Therefore, obtaining a detailed family history is essential when evaluating cases of FP to identify any hereditary component. Familial FP tends to have a higher likelihood of recurrence and may lead to synkinesis.
Related Concept Videos
Prosopagnosia
Muscles for Facial Expressions
Somatic Spinal Reflexes
One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
Cranial Nerves: Types Part I
Olfactory Nerve (Cranial Nerve I)
The olfactory nerve, or cranial nerve I, is unique as it is purely sensory and dedicated to the sense of smell. This nerve originates in the olfactory epithelium of the...
Accessory Structures of the Eye
Muscles of the Eye
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and...

