Knosp Grade 3B

• Multi-layer reconstruction of skull base after endoscopic transnasal surgery for invasive pituitary adenomas
• The Knosp Criteria Revisited: 3-Dimensional Volumetric Analysis as a Predictive Tool for Extent of Resection in Complex Endoscopic Pituitary Surgery
• Application of Convolutional Neural Network in the Diagnosis of Cavernous Sinus Invasion in Pituitary Adenoma
• Radiological Knosp, Revised-Knosp, and Hardy-Wilson Classifications for the Prediction of Surgical Outcomes in the Endoscopic Endonasal Surgery of Pituitary Adenomas: Study of 228 Cases
• Diagnostic value of Knosp grade and modified Knosp grade for cavernous sinus invasion in pituitary adenomas: a systematic review and meta-analysis
• Predicting early post-operative remission in pituitary adenomas: evaluation of the modified knosp classification
• Challenging Knosp high-grade pituitary adenomas
• Superiority of constructive interference in steady-state MRI sequencing over T1-weighted MRI sequencing for evaluating cavernous sinus invasion by pituitary macroadenomas

Below the intracavernous internal carotid artery into the inferior cavernous sinus compartment The tumor extends to the lateral line inferiorly (under ICA) ¹⁾.

A significantly higher rate of remission can be achieved in grade 3A than in grade 3B and grade 4 adenomas. Therefore, the distinction into grades 3A, 3B, and 4 is of importance for the prediction of adenoma invasion and surgical treatment considerations ²⁾