- Publikační typ
- abstrakt z konference MeSH
- Publikační typ
- abstrakt z konference MeSH
Gangliogliom je vzácným primárním nádorem mozku. Predilekčně se vyskytuje supratentoriálně, v temporálním laloku (> 70 %). Nejčastějším klinickým projevem jsou farmakorezistentní epileptické záchvaty. Jeho vzácná, anaplastická, forma je definována histologickými známkami anaplazie v gliální složce nádoru. Pacientka s gangliogliomem WHO grade 1 podstoupila na našem pracovišti několik operačních výkonů pro postupnou progresi základního onemocnění. Z histologických vyšetření je patrný vývoj nádoru a jeho zvrat v anaplastickou formu (WHO grade 3), jehož chování odpovídalo glioblastomu IDH wild-type. Současné molekulárně-genetické profilování nádorů mozku je základem pro lepší predikci biologického a klinického chování nádoru a potažmo stanovení strategie jejich sledování a léčby.
Ganglioglioma is a rare primary brain tumor. It is commonly located supratentorialy, in the temporal lobe (>70%). The main clinical manifestation is a drug-resistant epileptic seizures. A rare, anaplastic, form is considered based on histological anaplastic signs of the glial component. Our patient with WHO grade 1 ganglioglioma underwent several surgeries for the gradual neoplasm progression. The histological examination shows the tumor development and its gradual up-grading into an anaplastic form (WHO grade 3), of which biology corresponded with the IDH wild-type glioblastoma. Current molecular-genetic tumor profiling is underpinnings for predilection of the biologic and clinic behavior and also for the assessment of follow-up and treatment strategy.
- Klíčová slova
- upgrading nádoru,
- MeSH
- gangliogliom * diagnóza patofyziologie terapie MeSH
- lidé středního věku MeSH
- lidé MeSH
- nádory mozku diagnóza patofyziologie terapie MeSH
- výsledek terapie MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- ženské pohlaví MeSH
- Publikační typ
- kazuistiky MeSH
Glioblastoma inevitably recurs, but no standard regimen has been established for treating this recurrent disease. Several reports claim that reoperative surgery can improve survival, but the effects of reoperation timing on survival have rarely been investigated. We, therefore, evaluated the relationship between reoperation timing and survival in recurrent GBM. A consecutive cohort of unselected patients (real-world data) from three neuro-oncology cancer centers was analyzed (a total of 109 patients). All patients underwent initial maximal safe resection followed by treatment according to the Stupp protocol. Those meeting the following criteria during progression were indicated for reoperation and were further analyzed in this study: (1) The tumor volume increased by >20-30% or a tumor was rediscovered after radiological disappearance; (2) The patient's clinical status was satisfactory (KS ≥ 70% and PS WHO ≤ gr. 2); (3) The tumor was localized without multifocality; (4) The minimum expected tumor volume reduction was above 80%. A univariate Cox regression analysis of postsurgical survival (PSS) revealed a statistically significant effect of reoperation on PSS from a threshold of 16 months after the first surgery. Cox regression models that stratified the Karnofsky score with age adjustment confirmed a statistically significant improvement in PSS for time-to-progression (TTP) thresholds of 22 and 24 months. The patient groups exhibiting the first recurrence at 22 and 24 months had better survival rates than those exhibiting earlier recurrences. For the 22-month group, the HR was 0.5 with a 95% CI of (0.27, 0.96) and a p-value of 0.036. For the 24-month group, the HR was 0.5 with a 95% CI of (0.25, 0.96) and a p-value of 0.039. Patients with the longest survival were also the best candidates for repeated surgery. Later recurrence of glioblastoma was associated with higher survival rates after reoperation.
- Publikační typ
- časopisecké články MeSH
- Publikační typ
- abstrakt z konference MeSH
Patients below 55 years were genetically studied because the prevalence of isocitrate dehydrogenase 1 (IDH1) decreases in older patients and on grounds of cost-effectiveness, as suggested by the World Health Organization (WHO) in 2016. The aim of our study was to use novel massively parallel sequencing (MPS) approaches to examine rare variants of IDH1/2 in Czech diffuse astrocytic and oligodendroglial tumors (gliomas) patients below 55 years of age who had been immunohistochemically (IHC) diagnosed as IDH1 R132H negative. The IHC IDH1 status (wild type or mutant) of 275 tissue samples was analyzed using antibodies against the IDH1 R132H protein. Sixty-three samples of 55 years old patients with IHC IDH1 WT status were genotyped using two different MPS technologies to detect rare IDH1 and IDH2 variants. The tiered IHC (60 positive) and molecular (10 positive) approach thus revealed that 70 of the 275 samples (25%) bore IDH1/IDH2 mutations. The combined molecular and IHC approach thus revealed that 70 of the 275 samples (25%) considered in the study bore IDH1/IDH2 mutations. IHC detection of the IDH1 R132H variant should be routinely complemented with MPS to detect rare IDH1/2 variants in glioma patients below 55 years of age with negative IHC result of IDH R132H variant.
- MeSH
- gliom * patologie MeSH
- isocitrátdehydrogenasa genetika metabolismus MeSH
- lidé středního věku MeSH
- lidé MeSH
- mutace MeSH
- nádory mozku * diagnóza MeSH
- retrospektivní studie MeSH
- senioři MeSH
- vysoce účinné nukleotidové sekvenování MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- senioři MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
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.
- MeSH
- cévní mozková příhoda * komplikace etiologie MeSH
- glioblastom * radioterapie terapie MeSH
- lidé středního věku MeSH
- lidé MeSH
- lokální recidiva nádoru MeSH
- magnetická rezonanční tomografie metody MeSH
- nádory mozku * komplikace patologie terapie MeSH
- syndrom MeSH
- záchvaty etiologie MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- Publikační typ
- kazuistiky MeSH
- Publikační typ
- abstrakt z konference MeSH
- Publikační typ
- abstrakt z konference MeSH
- Publikační typ
- abstrakt z konference MeSH
