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. 2022 Aug 26;42(7):1897–1911. doi: 10.1148/rg.220045

Figure 15.

Type 1 axillary lymph node and type 6 infraclavicular lymph node in a 46-year-old woman who underwent bilateral mastectomy in 2014 for invasive ductal carcinoma in the left breast and who presented for SPECT/CT evaluation of a suspected right parathyroid adenoma. Fourteen days earlier, she received the second dose of the Moderna SARS-CoV-2 vaccine in the left arm. (A) Axial image from technetium 99m–sestamibi SPECT/CT shows mild left axillary lymphadenopathy with mild sestamibi uptake (dashed circle). (B, C) US images from short-term follow-up 5 weeks later show a normalized type 1 axillary lymph node (arrow in B) (BI-RADS 2) and a type 6 left infraclavicular lymph node (arrow in C) (BI-RADS 4A). * in C = clavicle. Fine-needle aspiration of the infraclavicular lymph node yielded benign lymphocytes and macrophages.

Type 1 axillary lymph node and type 6 infraclavicular lymph node in a 46-year-old woman who underwent bilateral mastectomy in 2014 for invasive ductal carcinoma in the left breast and who presented for SPECT/CT evaluation of a suspected right parathyroid adenoma. Fourteen days earlier, she received the second dose of the Moderna SARS-CoV-2 vaccine in the left arm. (A) Axial image from technetium 99m–sestamibi SPECT/CT shows mild left axillary lymphadenopathy with mild sestamibi uptake (dashed circle). (B, C) US images from short-term follow-up 5 weeks later show a normalized type 1 axillary lymph node (arrow in B) (BI-RADS 2) and a type 6 left infraclavicular lymph node (arrow in C) (BI-RADS 4A). * in C = clavicle. Fine-needle aspiration of the infraclavicular lymph node yielded benign lymphocytes and macrophages.