Differential IDH1 Immunohistochemical Expression Across the Pathologically Stratified Spectrum of Intraepithelial and Invasive Laryngeal Squamous Cell Lesions. - El-Zohery, Nora Tawhid Abdelfattah; Abou-Fandoud, Sara Mohamad; Attaalla, Asmaa Mohamed Saad Zaghloul; Mohammed, Abeer Mohammed Amal (Iranian Journal of Pathology, 2026)