Case Report: Incidental Finding of COVID-19 Infection after Positron Emission Tomography/CT Imaging in a Patient with a Diagnosis of Histoplasmosis and Recurring Fever.

This is a case report of a 37-year-old woman evaluated with 18F-fludeoxyglucose (18F-FDG) positron emission computed tomography/CT with recurrent fever after treatment with itraconazole for 6 weeks for histoplasmosis. The examination demonstrated a decrease in the dimensions of the pulmonary opacities previously identified in the left lower lobe and attributed to histoplasmosis. In addition to these pulmonary opacities, increased FDG uptake was also observed in lymph nodes present in the cervical region, mediastinum, left lung hilum, and hepatic hilum. Notably, other pulmonary opacities with ground-glass pattern that were not present in the previous computed tomography were detected in the right lower lobe, with mild 18F-FDG uptake. Nasal swab performed shortly after the examination was positive for COVID-19. In this case, the 18F-FDG positron emission computed tomography/CT study demonstrated findings consistent with active COVID-19 infection coexisting with inflammatory changes associated with histoplasmosis infection.

Secondary lymphedema of limbs and chikungunya fever.

Certain systemic viral infections can be related to development of vascular complications, such as deep venous thrombosis and lymphedema of lower and upper limbs. These links have been well-established in patients with human immunodeficiency virus (HIV), hepatitis C, or influenza. Recently introduced into the American continent (2013), chikungunya virus is an arbovirus transmitted by mosquitoes of the Aedes genus and is the etiologic agent of chikungunya fever (CF), but its relationship to these vascular complications has not yet been consolidated. However, the CF outbreak that occurred during 2015 and 2016 resulted in the first cases described in the medical literature of acute and chronic vascular complications secondary to infection by this arbovirus. In this report, we describe the case of a patient who developed lymphedema of upper and lower limbs after an episode of CF.

Linfedema secundário de membros e febre chicungunha / Secondary lymphedema of limbs and chikungunya fever

Algumas infecções virais sistêmicas podem estar relacionadas ao desenvolvimento de complicações vasculares, como trombose venosa profunda e linfedema de membros inferiores e superiores. Essa relação já está bem estabelecida em pacientes portadores do vírus da imunodeficiência humana (HIV), hepatite C ou influenza. Recentemente introduzido no continente americano (2013), o vírus chicungunha, um arbovírus transmitido pelo mosquito do gênero Aedes e agente etiológico da febre chicungunha (FC), ainda não tem essa relação bem sedimentada. Porém, o surto de FC, ocorrido entre 2015 e 2016, fez com que fossem descritos na literatura médica os primeiros casos de complicações vasculares agudas e crônicas secundárias à infecção por essa arbovirose. Neste relato de caso, descrevemos uma paciente que desenvolveu linfedema de membros superiores e inferiores após quadro de FC

Certain systemic viral infections can be related to development of vascular complications, such as deep venous thrombosis and lymphedema of lower and upper limbs. These links have been well-established in patients with human immunodeficiency virus (HIV), hepatitis C, or influenza. Recently introduced into the American continent (2013), chikungunya virus is an arbovirus transmitted by mosquitoes of the Aedes genus and is the etiologic agent of chikungunya fever (CF), but its relationship to these vascular complications has not yet been consolidated. However, the CF outbreak that occurred during 2015 and 2016 resulted in the first cases described in the medical literature of acute and chronic vascular complications secondary to infection by this arbovirus. In this report, we describe the case of a patient who developed lymphedema of upper and lower limbs after an episode of CF