Preauricular sinus is formed due to
Correct Answer: Improper fusion of auricular tubercles
Description: Preauricular appendages form due to development of accessory hillocks where as preauricular sinus/pits occur due to abnormal development of auricular tubercles/hillocks(six mesodermal thickenings) REFERENCE: TEXTBOOK OF CLINICAL EMBRYOLOGY... VISHRAM SINGH SECOND EDITION..PAGE NO:312
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