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Deep Pyriform Space: Anatomical Clarifications and Clinical Implications by Christopher K. Surek; James Vargo; Jerome Lamb is a Medicine article available to read on EtoBox.

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## Background: The purpose of this study was to define the anatomical boundaries, transformation in the aging face, and clinical implications of the ristow space. the authors propose a title of deep pyriform space for anatomical continuity. ## Methods: The deep pyriform space was dissected in 12 hemifacial fresh cadaver dissections. specimens were divided into three separate groups. for group 1, dimensions were measured and plaster molds were fashioned to evaluate shape and contour. for group 2, the space was injected percutaneously with dyed hyaluronic acid to examine proximity relationships to adjacent structures. for group 3, the space was pneumatized to evaluate its cephalic extension. ## Results: The average dimensions of the deep pyriform space are 1.1 × 0.9 cm. it is bounded medially by the depressor septi nasi and cradled laterally and superficially in a "half-moon" shape by the deep medial cheek fat and lip elevators. the angular artery courses on the roof of the space within a septum between the space and deep medial cheek fat. pneumatization of the space traverses cephalic to the level of the tear trough ligament in a plane deep to the premaxillary space. ## Conclusions:

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Author

Christopher K. Surek; James Vargo; Jerome Lamb

Published

2016

Language

EN

Field

Medicine (Health Sciences)