case_images: PMC11367552_01
case_images: Renal dysfunction details. (A) Time course of serum creatinine (Scr) level of the patient. (B) Right kidney stone found via ultrasound examination.
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case_images: PMC11367552_01_gr1.jpg
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case_images: Our analysis of the patient's creatinine levels (Figure 1 A) indicated that during the fifth and eighth courses of ustekinumab treatment, his mean creatinine level exceeded the maximum threshold of 104 micromol/L and reached 108.6 micromol/L. To identify causes, a thorough evaluation was conducted in July 2022 (see Supplementary Table 1), including laboratory tests such as urinalyses and ultrasound examinations, which revealed no significant abnormalities except for a right kidney stone (Figure 1 B).