UNASSIGNED: The @entity4802 are the embryological precursors of the face, neck and pharynx. Anomalies of the @entity4802 are the second most common congenital lesions of the head and neck in @entity1 , with second @entity6127 by far the most common. Clinically, these @entity154 may present as cysts, sinus tracts, fistulae or cartilaginous remnants with typical clinical and radiological findings. We review the normal embryological development of the @entity4802 and the anatomical structures of the head and neck that derive from each arch. The typical clinical and radiological appearances of both common and uncommon @entity6127 are discussed with an emphasis on @entity5816 . KEY POINTS:     Anomalies of the @entity4802 usually present as cysts, sinuses or fistulae.     Second @entity6127 account for approximately 95  % of cases.     There are no pathognomonic imaging features so diagnosis depends on a high index of suspicion and knowledge of typical locations.     Persistent cysts, fistulae or recurrent @entity281 may be due to @entity6127 .     Surgical excision of the cyst or tract is the most common curative option.

XXXX : a pictorial review of embryological development and spectrum of imaging findings.

@entity1 :: ('9606', 'Species') :: ['children'] @entity154 :: ('MESH:D000013', 'Disease') :: ['congenital anomalies'] @entity4802 :: ('MESH:D006053', 'Disease') :: ['branchial arches'] @entity281 :: ('MESH:D007239', 'Disease') :: ['localised infection'] @entity5816 :: ('MESH:C562384', 'Disease') :: ['branchial cleft anomalies'] @entity6127 :: ('MESH:D007569', 'Disease') :: ['branchial arch anomalies', 'branchial arch abnormalities']
@entity5816 :: (MESH:C562384,Disease) :: ['Branchial cleft anomalies']
