Unilateral incomplete interclinoid sellar bridge – a case report with literature review and commentaries on the clinical significance

This report presents a case of unilateral interclinoid bridge found on the macerated sphenoid bone. The interclinoid bridge was formed on the right side by an atypically long anterior clinoid process and anterior extension of the posterior clinoid process. The bony bridge was interrupted by a small gap (0.36 mm) between the tips of these two processes. A well-marked groove for the internal carotid artery was observed on the inferior surface of the right anterior clinoid process, forming a semi-opened caroticoclinoid foramen. Recognition of sellar bridging variants is essential for surgical planning, as they may alter access to the parasellar region and increase the risk of intraoperative challenges. • Unilateral incomplete interclinoid bridge is documented on a dry sphenoid bone. • Atypical elongation of anterior and posterior clinoid processes is analysed morphometrically. • Clinical relevance for clinoidectomy and endoscopic approaches to the sellar region is discussed.