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Pulmonary target sign - COVID-19

Case contributed by Alexandre Hisashi Ribeiro Onuma
Diagnosis certain

Presentation

Fever, cough, myalgia, and anosmia. (Patient RT-PCR test was positive for COVID-19)

Patient Data

Age: 60 years
Gender: Male

Non-contrast CT scan of the chest demonstrates multifocal, bilateral, predominantly peripheral ground-glass opacities, and multiple nodular opacities, surrounded by a less dense rim which is surrounded by a denser concentric ring-like rim in some peripheral regions of the lower lobes of the lungs.

Case Discussion

Ground glass opacity is definitely the most common finding in COVID-19 infections. They are usually multifocal, bilateral, and peripheral.

The pulmonary target sign is described as nodular opacity in the center of a ring-like opacity in the lung parenchyma in patients with pneumonia caused by the coronavirus. Also, the possibility of this finding being unique remains unclear.

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