Cystic hygroma

Case contributed by Mohamed Saber
Diagnosis almost certain

Presentation

Large neck swelling since birth.

Patient Data

Age: 3 days
Gender: Male
ct
This study is a stack
Axial
non-contrast
This study is a stack
Axial C+ portal
venous phase
This study is a stack
Sagittal C+ portal
venous phase
This study is a stack
Coronal C+ portal
venous phase
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Info

Bilateral cervicofacial sizable multilocular cystic lesions measure 6x5x6 cm and 7.5x5x7.5 cm at the right and left sides respectively. They extend caudally about the level of sternoclavicular joints with no mediastinal extension. They exert a bilateral symmetrical mass effect upon the airways as well as displacing and surrounding the neck vascular structures. They elicit fluid density with internal minimally enhanced septations.

Photograph
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Info

A baby with cervicofacial swelling.

Case Discussion

Here is a case of congenital cervicofacial swelling with CT features that are highly suggestive of cystic hygroma. They occur most commonly in the neck, which is then also termed nuchal cystic hygroma (occurs in ~80% of cases)  and axilla, with only 10% of cases extending to the mediastinum and only 1% confined to the chest. This case shows no mediastinal extension.

The patient was prepared for lymphatic sclerotherapy.

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