Clinical Scorecard: A Two-Axis Classification System for Congenital Intracranial Cystic Lesions: Impact on Surgical Approaches and Long-Term Outcomes

At a Glance

Key Highlights

• Introduces a dual-axis cisternal classification system based on medial–lateral and dorsal–ventral anatomical dimensions to guide surgical planning and predict outcomes.
• Cisternal topography correlates independently with surgical complexity, extent of resection, and recurrence risk, potentially outperforming histological subtype for prognosis.
• Study includes a 16-year single-center cohort with prospective and retrospective data, ensuring consistent radiological and clinical follow-up.

Guideline-Based Recommendations

Diagnosis

• Histopathology remains the diagnostic gold standard for congenital intracranial cystic lesions.
• Preoperative MRI with detailed cisternal anatomical assessment is essential for lesion classification and surgical planning.
• Use dual-axis cisternal classification (medial–lateral and dorsal–ventral) to localize lesions relative to brainstem and cisternal compartments.

Management

• Microscopic surgical resection is the treatment of choice with curative intent.
• Gross total resection (GTR) is defined by complete removal of cyst contents and capsule confirmed on 3-month postoperative MRI.
• Subtotal resection (STR) may be considered when complete capsule removal is unsafe due to anatomical complexity.

Monitoring & Follow-up

• Minimum postoperative follow-up of 12 months with at least three clinical and/or radiological evaluations to assess recurrence and functional outcomes.
• Regular MRI surveillance post-surgery to detect residual or recurrent cystic lesions.

Risks

• Surgical complexity and morbidity are influenced by cisternal location, with multicompartmental and deep-seated lesions posing higher risks.
• Incomplete resection increases risk of recurrence; anatomical constraints may limit extent of safe resection.

Patient & Prescribing Data

Patients with histologically confirmed congenital intracranial cystic lesions undergoing neurosurgical resection at a tertiary center

Preoperative cisternal classification informs surgical approach and risk stratification, aiding in personalized patient counseling and follow-up planning.

Clinical Best Practices

• Incorporate dual-axis cisternal classification into preoperative imaging review to optimize surgical corridor selection.
• Engage multidisciplinary consensus including neurosurgeons and neuroradiologists for lesion classification and operative planning.
• Ensure rigorous longitudinal follow-up with standardized clinical and imaging protocols to monitor for recurrence and functional outcomes.

References

• Article source and study data