Introduction: By the end 2019 there was an outbreak of pneumonia caused by a new coronavirus, a disease that was called coronavirus disease 2019 (COVID-19). Computed tomography (CT) has played an important role in the diagnosis of COVID-19 patients.
Objective: To demonstrate inter-observer variability with five scales proposed for measuring the extent of COVID-19 pneumonia on tomography.
Background: Surgical resection is the treatment of choice for most of the primary and secondary liver tumors, unfortunately, many patients are not suitable for resection. Several ablative alternatives have been employed for treatment; the most commonly used has been radiofrequency ablation.
Objective: To establish the safety and results of treatment with radiofrequency ablation (RF) of malignant liver tumors.