Haissan Iftikhar, Shabbir Akhtar.
Ectopic cervical thymic cyst in a seven year old: a diagnostic challenge.
J Pak Med Assoc Jan ;68(5):797-800.

Cervical thymus cyst is a rare entity and resembles lymphangioma or branchial cleft cyst therefore, presents as a diagnostic challenge. It has a slight male predominance and presents on the left side of the neck in up to 70% of cases. It is a painless mass that progressively increases. We present a case of a seven year old child with a right sided neck swelling that would increase on phonation therefore, adding to the complexity of the case. Surgical excision was performed and final histopathology revealed an ectopic thymic cyst.

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