简介：AbstractIntroduction:Nail psoriasis has a profound negative influence on quality of life and has a more closely relationship with psoriatic arthritis. However, patients with nail changes only were often overlooked with the diagnosis of psoriasis. It is necessary to pay more attention to nail psoriatic changes.Herein, we report a 24-year-old male patient with nail changes as the initial sign of psoriasis who was finally diagnosed with nail psoriasis.Case presentation:The nails presented with white streaks, deformations, and had been missed for 8 months. Physical examination further revealed one erythematous scaly plaque on the buttock, anusand scalp respectively with positive Auspitz sign. Combined with the negative fungal microscopic, dermoscopic results and pathological results, the diagnosis of nail psoriasis was made. Oralacitretin (30 mg/day) and topical calcipotriene liniment was prescribed for 3 months followed with etanercept (50 mg once per week), and the nail symptoms were well controlled.Discussion:Nail psoriasis is usually noticed after the occurrence of skin lesions, but may occur simultaneously with or before skin psoriasis. Occasionally, nail involvement is the only manifestation of psoriasis. Nail lesions maybe one of the strongest clinical predictors of psoriatic and it has a profound negative influence on quality of life, so that timely recognition and proper treatment are improtant.Conclusion:Nail psoriasis can cause substantial physical and psychological impairment. However, nail involvement is an often overlooked feature of psoriasis. More attention should be paid to nail psoriatic changes and the administration of appropriate treatment.

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简介：AbstractBackground:The COVID-19 novel coronavirus is contagious, and the mortality is higher in the elderly population. Lockdown in different parts of the world has been imposed since January 2020. Chronic subdural haematoma (cSDH) has a unique natural history in which symptoms can be non-specific, and the onset is insidious. This study aims to evaluate the impact of the COVID-19 pandemic on the presentation of cSDH.Methods:Consecutive adult cSDH patients admitted from 1 March 2020 to 30 April 2020 were reviewed. Exclusion criteria including those who had no definite history of head injury or the diagnosis of cSDH were made from a scheduled follow-up scan. Corresponding data during the same period in 2019 were reviewed for comparison. The primary outcome was the interval between the initial head injury and the final radiological diagnosis of cSDH. Secondary outcomes include Markwalder chronic subdural haematoma grade upon admission, length of stay in the acute hospital, and the modified Rankin scale (mRS) upon discharge.Results:For the primary outcome, the average interval between head injury and the diagnosis of cSDH was significantly longer at 56.6 days (49 to 74 days, SD 9.83 days) during the period from March to April 2020, versus 29.4 days (17 to 42 days, SD 8.59 days) in 2019 for the corresponding period (p = 0.00703). There was no significant difference in the functional outcome upon discharge.Conclusions:cSDH patients can present late during the COVID-19 lockdown period. The functional outcome was comparable when operations for drainage were timely performed.

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