Pure 3D-endoscopic removal of supra-infratentorial tumor via Paramedian Supracerebellar Infratentorial Transtentorial (SCITTT) keyhole approach.

Authors

Yanming Chen, Ailin Chen, Qing Lan, Qing Wang

Published in

Acta neurochirurgica. Jul 03, 2026. Epub Jul 03, 2026.

Abstract

Although the purely endoscopic supracerebellar infratentorial approach has been widely used for the resection of pineal region and posterior third ventricular tumors, its application in tumors extending across the tentorium is rarely reported. Here, we present a case of a supra-infratentorial tumor resected via a purely 3D-endoscopic supracerebellar infratentorial transtentorial (SCITTT) keyhole approach.
Under a purely 3D endoscopic system, the SCITTT approach was performed through a paramedian keyhole craniotomy to resect a supra-infratentorial tumor. The tumor originated from the edge of right tentorium and extended both supra- and infratentorially. The infratentorial tumor was dissected and removed via the supracerebellar corridor. Subsequently, the tentorium was incised circumferentially around the tumor origin, followed by piecemeal resection of the supratentorial component.
Using an approximately 2-3 cm keyhole craniotomy combined with the SCITTT approach and appropriate patient positioning, purely 3D-endoscopic surgery allows safe and minimally invasive resection of supra-infratentorial tumor without complications.

PMID:
42399465
Bibliographic data and abstract were imported from PubMed on 04 Jul 2026.

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