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Radiological investigations play an important role in the treatment course of patients with coronavirus disease 2019 and radiologists should be familiar with the imaging characteristics. Being an integral component of the healthcare system, radiology departments have made adaptations to enhance infection control and strengthen the service. In this article, we review the radiological features of COVID-19 on chest radiography and computed tomography, and share experiences on the adaptive approach of radiology departments amidst the COVID-19 pandemic.

Objectives: Breast manifestations in patients with systemic lupus erythematosus (SLE) include primary lupus of the breast (i.e., lupus mastitis) and secondary manifestations of lupus such as lymphadenopathy or vascular calcifications. To clarify the spectrum of breast manifestations in patients with SLE, we reviewed the clinical, imaging, and pathological manifestations of breast diseases in SLE patients. Methods: We retrospectively reviewed cases of SLE patients with breast imaging performed in five centres from January 2010 to April 2020. Patient demographics, breast symptoms, imaging, and pathological findings, and their subsequent management, were reviewed. Results: A total of 16 cases were included. The mean follow-up period was 61 months. A palpable breast mass was the most frequent clinical presentation, followed by mastalgia and axillary swelling. A wide range of imaging findings was encountered on ultrasonography and/or mammography, including extensive calcifications in both breasts, breast masses with features suspicious for malignancy, fat necrosis, oedema, arterial calcifications, architectural distortion, and axillary lymphadenopathy. Two cases of lupus mastitis and a case of invasive ductal carcinoma were identified. Conclusion:No definite distinguishing features between lupus mastitis and breast malignancy were observed on imaging. Pathological correlation is recommended when imaging features suspicious for malignancy are demonstrated.

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