ALB and pituitary apoplexy: We then conducted the LASSO analysis, and the following 15 features were screened out of the original 87 (Supplementary Table S5 and Figure 1): Hardy grade for suprasellar extension, gender, acromegalia, pituitary apoplexy, tumor shape 2, lengths of tumor height and thickness, tumor volume, thyroid-stimulating hormone (TSH), T3, tetraiodothyronine (T4), albumin, monocyte percentage, activated partial thromboplastin time (APTT), and fibrinogen.