neck lump

Branchial cleft cyst

A branchial cleft cyst is a fluid-filled sac that forms on the side of the neck, usually just in front of the ear or under the jaw. It develops from tissues in the neck that didn’t fully form during embryonic development. These cysts are typically benign (non-cancerous) and can appear at any age, though they …
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Thyroglossal duct cyst

A thyroglossal duct cyst is a fluid-filled pocket in the front of the neck, typically in the midline. It forms along the pathway that the thyroid gland follows during its early development. Normally, the thyroglossal duct disappears after the thyroid gland reaches its final position in the neck, but in some cases, part of the …
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