Table 1.

Case reports of lymphadenopathy post COVID-19 vaccination from the literature: case 1–6 [31]; case 7 [32]; case 8 [33]. (At https://www.1mdpi.com/ethics10 (accessed on 25 July 2022). It is reported that permission is not required for “reconstruction of your own table with data already published elsewhere”).

Case Report	Clinical Presentation	Cancer	Vaccine	Management
1 61-year-old woman	Multiple, enlarged lymph nodes in left axillary region on imaging studies in a routine 5-year follow-up	Right breast cancer with ipsilateral axillary metastasis	I dose of Vaxzevria in the left arm 16 days before	Biopsy (benign hyperplasia)
2 75-year-old woman	Multiple enlarged, round, and coffee bean-shaped lymph nodes in left axillary region during imaging studies in a routine 2.5-year follow-up	Right breast cancer without axillary metastases	II dose of the Pfizer-BioNTech 14 days before	Biopsy (reactive hyperplasia)
3 71-year-old woman	Smooth and diffuse enlargement of left axillary level I lymph nodes during 8-year surveillance exams	Right breast cancer without axillary metastasis	I dose of Vaxzevria in the left arm 8 and 14 days prior to current CT and US evaluation, respectively	Biopsy (benign hyperplasia)
4 73-year-old woman	Several enlarged lymph nodes in level I of her right axilla with one lymph node showing round shape during 10-year surveillance	Left breast cancer without axillary metastasis	Booster dose Vaxzevria–Pfizer-BioNTech cross-inoculation 28 days before	4–12 weeks follow-up
5 62-year-old woman	Unilateral left axillary lymphadenopathy during 2.5-year follow-up	Right breast cancer with ipsilateral axillary metastases	I dose of Vaxzevria in the left arm 3 weeks before	4–12 weeks follow-up
6 61-year-old woman	Right axillary lymphadenopathy detected during 3-year follow-up	Left breast cancer with ipsilateral axillary metastasis	I dose of Vaxzevria in the right arm 19 days before	3-month follow-up
7 34-year-old woman	Left axillary lymphadenopathy	She denied a medical history of past malignant tumors	II dose of CoronaVac in the left arm 4 months before	Biopsy (reactive hyperplasia)
8 Woman, unknown age	Worsening of lymphedema on the cancer side	Right breast cancer with lymph node dissection	I dose of COVID-19 vaccine in the left arm	Conservative treatment