Abstract Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2), has rapidly spread worldwide since December …

Typical radiologic findings of a pulmonary metastasis include multiple round variable-sized
nodules and diffuse thickening of interstitium. In daily practice, however, atypical radiologic …

A solitary pulmonary nodule (SPN) is defined as a round opacity that is smaller than 3 cm. It
may be solid or subsolid in attenuation. Semisolid nodules may have purely ground-glass …

The halo sign is a CT finding of ground-glass opacity surrounding a pulmonary nodule or
mass. The reversed halo sign is a focal rounded area of ground-glass opacity surrounded by …

The CT halo sign indicates ground glass attenuation surrounding a pulmonary nodule on
CT. Although it was initially proposed as an early, specific finding of invasive pulmonary …

DISCUSSION The halo sign has been described in patients with invasive aspergillosis and
acute leukemia (, 1). Invasive pulmonary aspergillosis represents one end of the spectrum of …

On computed tomography (CT) scanning, a ground-glass opacity zone surrounding a
pulmonary nodule has been named the computed tomography (CT) halo sign. To …

Purpose Positron emission tomography-computed tomography (PET-CT) is a resource-
demanding imaging modality with increasing popularity in the workup of patients with …

Background This study aimed to evaluate the computed tomography (CT) features of solitary
pulmonary nodule (SPN), which can be a non-invasive diagnostic tool to differentiate …

Pulmonary metastasectomy (PM) is an established treatment that can provide improved long-
term survival for patients with metastatic tumor (s) in the lung. In the current era, where …