Related to pit: A preauricular pit is part of a range of congenital conditions that are related to embryological development of the first and second branchial clefts. They can range from small "pits" or dimples to longer tracts known as "sinuses" or to abnormal communications called "fistulas" when these longer passages get " pinched off" or occluded, they can form a cyst which looks like a sebaceous cyst
Answered 9/29/2016
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