case_images: PMC9761232_01
case_images: Patient's acanthosis nigricans and skin tags.
case_images: 10.1177_11795476221144186-fig1.jpg
case_images: PMC9761232_01_10.1177_11795476221144186-fig1.jpg
case_images: fig1-11795476221144186
case_images: The cardiopulmonary examination was unremarkable, but acanthosis nigricans and skin tags were observed in his neck (Figure 1).
case_images: Timeline of blood glucose, insulin dosages and HbA1c from pre-admission to
  follow-up.
case_images: 10.1177_11795476221144186-fig2.jpg
case_images: PMC9761232_01_10.1177_11795476221144186-fig2.jpg
case_images: fig2-11795476221144186
case_images: Timeline of blood glucose, insulin dosages as well as HbA1c levels are illustrated in Figure 2.