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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
Clin Nucl Med ; 46(4): e221-e223, 2021 Apr 01.
Article in English | MEDLINE | ID: covidwho-944540


ABSTRACT: In accordance with published international COVID-19 pandemic guidance (American College of Nuclear Medicine, British Nuclear Medicine Society, and European Association of Nuclear Medicine), the use of face masks has become an essential part of infection control for both patients and staff. A 56-year-old man with mantle cell lymphoma underwent staging FDG PET/CT, which demonstrated avid lymphadenopathy below the diaphragm and an unusual diffuse FDG uptake projected over the face, raising the suspicion of cutaneous lymphomatous involvement. On reflection of the clinical scenario and scanning conditions, cutaneous involvement was discounted; the pattern of uptake and lack of CT correlate were supportive of a cutaneous artifact related to the presence of the patient's mask.

COVID-19/prevention & control , Skin Diseases/diagnostic imaging , Artifacts , Fluorodeoxyglucose F18 , Humans , Infection Control , Lymphoma/diagnostic imaging , Male , Masks , Middle Aged , Positron Emission Tomography Computed Tomography , SARS-CoV-2