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Korean J Radiol ; 22(12): 1938-1945, 2021 12.
Article in English | MEDLINE | ID: covidwho-1497013


Breast radiologists are increasingly seeing patients with axillary adenopathy related to COVID-19 vaccination. Vaccination can cause levels I-III axillary as well as cervical lymphadenopathy. Appropriate management of vaccine-related adenopathy may vary depending on clinical context. In patients with current or past history of malignancy, vaccine-related adenopathy can be indistinguishable from nodal metastasis. This article presents imaging findings of oncology patients with adenopathy seen in the axilla or neck on cross-sectional imaging (breast MRI, CT, or PET-CT) after COVID-19 vaccination. Management approach and rationale is discussed, along with consideration on strategies to minimize false positives in vaccinated cancer patients. Time interval between vaccination and adenopathy seen on breast MRI, CT, or PET-CT is also reported.

Breast Neoplasms , COVID-19 , Lymphadenopathy , Vaccines , Axilla , Breast Neoplasms/diagnostic imaging , COVID-19 Vaccines , Female , Fluorodeoxyglucose F18 , Humans , Lymphadenopathy/diagnostic imaging , Magnetic Resonance Imaging , Positron Emission Tomography Computed Tomography , SARS-CoV-2
Clin Nucl Med ; 46(4): 353-354, 2021 04 01.
Article in English | MEDLINE | ID: covidwho-1112131


ABSTRACT: We present here a 72-year-old man with mantle cell lymphoma who has completed chemotherapy and achieved complete metabolic response to the therapy 10 months ago. Series follow-up FDG PET/CT scans have been negative for lymphoma. Current FDG PET/CT scan showed a new cluster of subcentimeter left axillary lymphadenopathy with avid FDG uptake. There was also focal FDG uptake in the left upper arm deltoid muscle and adjacent subcutaneous soft tissue, with no other abnormal FDG-avid lesion or suspicious CT image findings. The medical history revealed that the patient received COVID-19 mRNA vaccine 2 days before the FDG PET/CT examination.

COVID-19 Vaccines/adverse effects , COVID-19/prevention & control , Diagnosis, Differential , Lymphadenopathy/diagnostic imaging , Lymphoma/diagnostic imaging , Aged , Disease Progression , Fluorodeoxyglucose F18 , Humans , Lymphadenopathy/chemically induced , Lymphoma/chemically induced , Male , Positron Emission Tomography Computed Tomography/methods , RNA, Messenger , SARS-CoV-2 , Subcutaneous Tissue , Vaccination