Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub. 2022, 166(2):236-241 | DOI: 10.5507/bp.2021.012

Very late complications of oncotherapy in glioblastoma patients: A case series

Ondrej Kalitaa, Lumir Hrabaleka, Matej Halaja, Pavel Hokb, David Francb, Yvona Klementovac, Martin Dolezelc, Eva Cechakovad, Zuzana Sporikovae, Jiri Drabeke, Marian Hajduche, Lucie Tuckovaf
a Department of Neurosurgery, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
b Department of Neurology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
c Department of Oncology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
d Department of Radiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
e Laboratory of Experimental Medicine, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
f Department of Pathology and Laboratory of Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic

Background: Stroke-like syndrome is defined as a rare, delayed complication of brain oncotherapy. Cases with more favorable brain cancer diagnoses and longer life expectancy have been previously reported, but here we present, for the first time, three long-term survivors of glioblastoma with stroke-like syndromes.

Methods and Results: Three young or middle-aged patients underwent tumor resection and chemoradiotherapy. They received regular clinical and imaging follow-up with stable neurological status and no signs of tumor recurrence. They exhibited varied signs and symptoms (motor and sensory deficits, aphasia, memory and cognitive disorders, seizures, and headache) accompanied by imaging abnormalities. Stroke-like syndromes developed within 2-5 days and resolved in 2-6 weeks. Diffusion-weighted MRI and T2 brain perfusion abnormalities were demonstrated in all patients. In addition, there was focal T1 MRI contrast enhancement due to blood-brain barrier disruption. In addition to tumor recurrence, classic stroke, encephalitis, metabolic and mitochondrial disorders, and post-seizure swelling should be excluded. The imaging indicated intensive MRI scanning and symptomatic medication (steroids supplemented by antiepileptics, vasoactive agents, etc.) for judicious management. With respect to the course, an invasive procedure was still considered an option.

Conclusion: All stroke-like syndromes are diagnoses of exclusion. To avoid misinterpretation of imaging findings as glioblastoma recurrence and avert recall oncotherapy or redundant interventions, better understanding of delayed complications of brain tumor therapy is crucial.

Keywords: stroke-like syndrome, glioblastoma, oncotherapy, corticosteroid

Received: November 28, 2020; Revised: January 14, 2021; Accepted: January 29, 2021; Prepublished online: February 22, 2021; Published: May 13, 2022  Show citation

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Kalita, O., Hrabalek, L., Halaj, M., Hok, P., Franc, D., Klementova, Y., ... Tuckova, L. (2022). Very late complications of oncotherapy in glioblastoma patients: A case series. Biomedical papers166(2), 236-241. doi: 10.5507/bp.2021.012
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