BackgroundMarcus Gunn jaw-winking synkinesis (MGJWS) is characterized by eyelid ptosis. which disappears during jaw movement. Familial MGJWS is an extremely rare condition. Some authors suggested that MGJWS is due to neural misdirection in the brainstem whereas others suggested that aberrant reinnervation or ephapse may be responsible for synkinetic activity. https://danddcollectiblers.shop/product-category/balloon-spinner/