PMC9441546_01
Psoriasis exacerbated during the 6th course of anti-programmed cell death 1 (PD-1) (camrelizumab), which characterized by skin lesions expanding on both hands, legs, and trunk. (A, back of the whole body), (B, front of the legs).
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At that time, his psoriasis progressed with obvious pain and skin lesions expanding on both hands, legs, and trunk ( Figure 1 ).
Histological examination of the skin biopsy showing typical features of psoriasis, i.e. thickened epidermis with hyperkeratosis and regular acanthosis, neutrophils trapped in the stratum corneum (Munro micro-abscesses), considerable oedema of the dermis and slight lymphocyte infiltrate around dermal capillaries. Hematoxylin and eosin staining; (A, 100x images), (B, 200ximages).
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Finally, a skin biopsy confirmed the diagnosis of psoriasis ( Figure 2 ).
Mycobacterium neoaurum growth on blood plate. Note the smooth daffodil yellow appearance of colonies.
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Seven days later, the blood culture grew M. neoaurum ( Figure 3 ).