Sonographic findings in ectopic cervical thymus in an infant

We present the case of a 28‐day‐old boy with ectopic thymic tissue in the neck. Sonography showed a well‐delineated, homogeneous lesion in the left submandibular region that was isoechoic relative to the mediastinal thymus. The lesion had angular margins and lacked a mass effect despite its large si...

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Bibliographic Details
Published in:Journal of clinical ultrasound 2001-11, Vol.29 (9), p.523-526
Main Authors: Fitoz, Suat, Atasoy, Çetin, Türköz, Erdem, Gümüş, Derya, Erden, İlhan, Akyar, Serdar
Format: Article
Language:English
Subjects:
Biological and medical sciences
Choristoma - diagnostic imaging
color Doppler ultrasonography
Diagnosis, Differential
ectopic thymus
Humans
Infant, Newborn
Male
Medical sciences
MRI
neck
Neck - diagnostic imaging
Neck - pathology
Pneumology
Respiratory system : syndromes and miscellaneous diseases
Thymus Gland
Ultrasonography, Doppler
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Description
Summary:We present the case of a 28‐day‐old boy with ectopic thymic tissue in the neck. Sonography showed a well‐delineated, homogeneous lesion in the left submandibular region that was isoechoic relative to the mediastinal thymus. The lesion had angular margins and lacked a mass effect despite its large size (3 × 2 cm). On power Doppler imaging, arteries with an intermediate‐impedance flow pattern were seen entering the lesion from the inferior and lateral margins. On both T1‐ and T2‐weighted MR images, the lesion was isointense relative to the mediastinal thymus and had higher and lower signal intensity than muscle and fat, respectively. A sonographically guided needle biopsy confirmed the diagnosis of ectopic thymus. © 2001 John Wiley & Sons, Inc. J Clin Ultrasound 29:523–526, 2001.
ISSN:0091-2751
1097-0096
DOI:10.1002/jcu.10013