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Congenital, Normal variants, eLearning, Ultrasound, MR, CT, Head and neck
S. M. Tochetto, O. C. Saito, J. D. Zavariz, M. C. Chammas; São Paulo/BR
Cervical thymic anomalies are uncommon and are rarely considered in the differential of a neck mass.
They are often identify during childhood and usually presents as asymptomatic nodule or neck swelling on routine examination.
The thymus has a unique appearance at ultrasound allowing for an accurate diagnosis in most of the cases.
Familiarity with the spectrum of imaging appearance of the cervical thymic anomalies may help minimize invasive procedures,
especially in children.
If ectopic thymus causes symptoms,
due to compression or pressure in the neighboring structures,
surgery might be recommended.
In this situation,
it is important to confirm the presence of thymic tissue in the upper mediastinum.