RESUMO
A 77-year-old woman with follicular thyroid cancer underwent total thyroidectomy and subsequent Iodine-131 remnant ablation. She had a history of a wide tenosynovial giant cell tumor (TGCT) of the right wrist and hand that had been resected thirteen years ago. Post-therapeutic scintigraphy and single photon emission computed tomography showed mild uptake on the distal right forearm, wrist and hand. Magnetic resonance imaging and posterior histopathology confirmed a relapse of TGCT. No radioiodine adverse effects were reported after a one-year follow-up. As far as we know, this report is the first in the literature to a TGCT visualized on post-therapy radioiodine scan.
RESUMO
PURPOSE: Spain has been one of the most affected countries by the COVID-19 pandemic, being among the countries with worse numbers, including the death rate. However, most patients are asymptomatic, although they are very contagious. The objective of this study was to investigate the incidence in oncological patients infected with SARS-CoV-2 that are asymptomatic for COVID-19 and at home and that undergo PET/CT for oncologic indications, nonrelated to COVID-19, finding in the PET/CT lung alterations that are suggestive of SARS-CoV-2 infection. METHODS: During the period of maximum incidence of the global pandemic in one of the most affected regions of Spain, there were 145 patients that met inclusion and exclusion criteria and were included in the study. Imaging findings previously described such as ground-glass opacities with low [18F]-FDG uptake were considered images suspicious for SARS-CoV-2 infection. Patients with these findings were referred to RT-PCR testing and close follow-up to confirm the presence or absence of COVID-19. RESULTS: Suspicious lung imaging findings were present in 7 of 145 patients (4.8%). Five of these 7 patients were confirmed as presenting SARS-CoV-2 infection, this is, COVID-19. In the remaining two, it was not possible to confirm the presence of COVID-19 with RT-PCR, although in one of them, PET/CT allowed an early diagnosis of a lung infection related to a bacterial pneumonic infection that was promptly and adequately treated with antibiotics. CONCLUSION: These results confirm that the prevalence of SARS-CoV-2 infection is higher than suspected and that there are asymptomatic patients that are attending imaging departments to be explored for their baseline oncologic processes. In these patients, PET/CT allows an early diagnosis of COVID-19.
Assuntos
Infecções Assintomáticas , COVID-19 , Fluordesoxiglucose F18/administração & dosagem , Neoplasias/diagnóstico por imagem , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Feminino , Humanos , Masculino , Neoplasias/epidemiologia , Pandemias , SARS-CoV-2 , Espanha/epidemiologiaRESUMO
We present an asymptomatic 70-year-old man referred for an F-FDG PET/CT for initial staging of a Hodgkin lymphoma. F-FDG PET/CT showed bilateral cervical lymphadenopathy (stage II). Incidentally, the CT demonstrated bilateral ground-glass opacities with low-grade F-FDG activity. CT findings were suspicious for COVID-19 pneumonitis. The COVID-19 reverse transcriptase polymerase chain reaction (RT-PCR) examination result was negative. Given the high clinical suspicion for COVID-19, the patient was isolated and repeat RT-PCR was positive at 72 hours. RT-PCR may be falsely negative in early COVID-19 disease, even with positive CT findings.
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Betacoronavirus , Infecções por Coronavirus/diagnóstico por imagem , Doença de Hodgkin/complicações , Pneumonia Viral/diagnóstico por imagem , Idoso , COVID-19 , Teste para COVID-19 , Técnicas de Laboratório Clínico , Infecções por Coronavirus/complicações , Infecções por Coronavirus/diagnóstico , Fluordesoxiglucose F18 , Humanos , Masculino , Pandemias , Pneumonia Viral/complicações , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , SARS-CoV-2RESUMO
No disponible
Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Doença de Still de Início Tardio/fisiopatologia , Doença de Still de Início Tardio , Tomografia por Emissão de Pósitrons/métodos , Tomografia por Emissão de Pósitrons , Fluordesoxiglucose F18/administração & dosagem , Fluordesoxiglucose F18/análise , Doença Granulomatosa Crônica , Medula Óssea , Baço/patologia , Baço , Esplenopatias/complicações , EsplenopatiasAssuntos
Medicina Nuclear/organização & administração , Tomografia por Emissão de Pósitrons , Sociedades Médicas/organização & administração , Atitude do Pessoal de Saúde , Equipamentos para Diagnóstico/provisão & distribuição , Difusão de Inovações , Necessidades e Demandas de Serviços de Saúde/estatística & dados numéricos , Comunicação Interdisciplinar , Oncologia , Medicina Nuclear/tendências , Tomografia por Emissão de Pósitrons/instrumentação , Radiologia , Sociedades Médicas/tendências , Espanha , Tecnologia de Alto Custo , Tomografia Computadorizada por Raios X/instrumentaçãoRESUMO
No disponible