Table 3.

Ultrasound findings in patients with Covid-19 vaccine associated cervical lymphadenopathy

Pt no.	Level of LN	Short axis diameter (mm)*	S:L ratio	Vascularity	Fatty hilum	Echogenicity	Overall impression	FNAB
1	IV	4.9	0.5	Normal	Preserved	Normal	Reactive LN	Not done
2	V	7.7	0.5	Normal	Preserved	Normal	Reactive LN	Not done
3	V	Not done	Not done	Not done	Not done	Not done	Reactive LN	Not done
4	V	5.2	0.6	Increased	Preserved	Normal	Reactive LN	Not done
5	IV	4.7	0.7	Normal	Preserved	Slightly hypoechoic	Reactive LN	Benign reactive LN
6	V	5.2	0.7	Normal	Preserved	Normal	Reactive LN	Not done
7	V	6.6	0.5	Normal	Preserved	Normal	Reactive LN	Not done
8	IV/V	5.7	0.6	Normal	Preserved	Normal	Reactive LN	Not done
9	V	3.4	0.5	Normal	Preserved	Normal	Reactive LN	Not done
10	V	5	0.4	Normal	Preserved	Normal	Reactive LN	Not done
11	IV	4.2	0.5	Normal	Preserved	Normal	Reactive LN	Not done
12	V	8.2	0.6	Increased	Preserved	Slightly hypoechoic	Reactive LN	Benign reactive LN
13	V	7	0.5	Normal	Preserved	Normal	Reactive LN	Not done

^*Measured in the biggest node. Covid-19 = coronavirus disease 2019; Pt no. = patient number; LN = lymph node; S:L ratio = short axis diameter:long axis diameter ratio; FNAB = fine-needle aspiration biopsy