Welcome back to icliniq.com.
I read your query and understand your concern.
You are right. The ultrasonography has some limitations as it is a subjective finding, but the most important factor you narrated in clinical history is the compressibility of this swelling, which itself explains the nature of swelling that is venous malformation. Therefore, I suggest you consult a surgeon and go for definitive management of the swelling.
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Thanks and regards.