Surgical Management of Craniospinal Axis Solitary Fibrous Tumors: A Single-Institution Case Series and Comprehensive Review of the Literature

Author:

Piscopo Anthony J.1,Chowdhury A. J.1,Teferi Nahom1,Lee Sarah1,Challa Meron2,Petronek Michael3,Eschbacher Kathryn4,Bathla Girish5,Buatti John M.3,Hitchon Patrick1

Affiliation:

1. Department of Neurosurgery, University of Iowa Hospital and Clinics, Iowa City, Iowa, USA;

2. University of Iowa, Carver College of Medicine, Iowa City, Iowa, USA;

3. Department of Radiation Oncology, University of Iowa Hospital and Clinics, Iowa City, Iowa, USA;

4. Department of Pathology, University of Iowa Hospital and Clinics, Iowa City, Iowa, USA;

5. Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA

Abstract

BACKGROUND AND OBJECTIVES: Meningeal solitary fibrous tumors (SFTs) comprise 0.4% of primary central nervous system neoplasms and carry metastatic potential. Disease course and optimal management are largely unknown, and there is currently no literature rigorously describing neurological outcomes in surgically managed SFTs. We present one of the largest craniospinal SFT series, analyze patient outcomes, and extensively review the associated literature. METHODS: All surgically managed SFTs at our institution between January 2005 and March 2023 were retrospectively reviewed. Patient demographics, tumor and radiographic features, treatment, and clinical outcomes were collected. Neurological function was quantified using Frankel grade and Neurologic Assessment in Neuro-Oncology scores. Descriptive statistics, multivariate analysis, log-rank test, and Kaplan–Meier survival analysis were performed. RESULTS: Twenty-one patients satisfied inclusion criteria. Tumor locations included 15 supratentorial, three infratentorial, and three spinal. All patients underwent surgical resection, and 16 (76.2%) underwent radiation. Six (28.6%) patients had tumor recurrence, and three (14.3%) developed metastasis. Younger age and higher postoperative Frankel grade were significantly associated with increased overall survival (OS) (P = .011, P = .002, respectively). All patients symptomatically improved or stabilized after surgery, and Neurologic Assessment in Neuro-Oncology score (P = .001) and functional status significantly improved postoperatively (Karnofsky Performance Status: 65.2 ± 25.2 vs 91.4 ± 13.5, P = .001). Sex, adjuvant radiation, and extent of resection were not significantly associated with OS. CONCLUSION: SFT of the central nervous system is a rare entity with a variable clinical course. Surgical resection was associated with improved postoperative functional and neurological status. Higher postoperative neurological function was significantly associated with OS. Further studies are warranted to validate a standardized treatment algorithm and investigate the efficacy of adjuvant radiation in SFT.

Funder

National Center for Advancing Translational Sciences

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Neurology (clinical),Surgery

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