Brainstem ganglioglioma in an infant: Case report and review of literature
Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India.Journal of Pediatric Neurosciences 04/2013; 8(1):41-5. DOI: 10.4103/1817-1745.111422
Gangliogliomas are well differentiated, usually low grade, neuroepithelial tumors that comprise of neoplastic ganglion cells in combination with neoplastic glial cells. Occasionally, glial cells may show anaplastic features and are then labeled as anaplastic gangliogliomas. Most of the reported gangliogliomas are supratentorial tumors, predominantly in the temporal lobe. Brainstem location has been reported infrequently. As with cortically based gangliogliomas, though the primary treatment is resection, this is often not possible due to the eloquence of surrounding involved parenchyma. Here, we report a case of brainstem tumor in an 8-month-old child that was substantially resected and was histopathologically Grade 1 ganglioglioma. As per review of English literature, there has been no case of brainstem ganglioglioma reported in an infant (less than 1 year age). We discuss the surgical difficulties in the radical excision of such benign tumors and review literature on pediatric brainstem gangliogliomas.
Article: Gangliogliomas of the optic pathway[Show abstract] [Hide abstract]
ABSTRACT: Gangliogliomas involving the optic apparatus are rare, with only 23 cases described in the literature to our knowledge. Because of their location, they are resistant to gross total resection and command careful consideration of adjuvant treatment. Here, we review the existing literature describing these cases, along with our own additional patient. Most patients (91.3%) with optic gangliogliomas presented with progressive visual disturbances, and the majority were male (69.6%), as with gangliogliomas in general. Ophthalmological evaluation is warranted in these patients, followed by neurological imaging (preferably MRI). Screening for neurofibromatosis type 1 (NF1) is essential, as NF1 patients represent a disproportionate number of optic ganglioglioma cases (13.0%). Gross total resection should be attempted only if vision is beyond salvage, as this can be curative. Otherwise, when serviceable vision remains, subtotal resection with adjuvant radiation should be carried out when feasible. Despite treatment, the prognosis remains mixed, with roughly one-third of patients progressing.Journal of Clinical Neuroscience 12/2014; 21(12). DOI:10.1016/j.jocn.2014.05.018 · 1.38 Impact Factor
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ABSTRACT: Neuromyelitis optica (NMO) is an autoimmune astrocytopathy caused by anti-aquaporin 4 antibody. Only two patients with NMO have been reported presenting with hearing disorders to our knowledge. We recently treated a 40-year-old woman with NMO complaining of right hearing loss. Audiometry showed minimal asymmetry, but the auditory brainstem responses (ABR) were severely attenuated on the right. The attenuated ABR and her aural symptoms (hearing loss and fullness) improved after steroid treatment. The present case shows that the retrocochlear-type hearing loss may be associated with NMO.Journal of Clinical Neuroscience 12/2014; 21(12). DOI:10.1016/j.jocn.2014.04.019 · 1.38 Impact Factor
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ABSTRACT: Purpose: Pediatric infratentorial gangliogliomas are exceedingly rare tumors; thus, the factors affecting their outcome are poorly understood and their optimal management has still to be defined. Methods: We reviewed the literature on pediatric gangliogliomas with a focus on those located in the posterior fossa to study treatment and outcome data. We added to this review some of our clinical cases. Results: We found 100 and 80 cases of brainstem and cerebellar pediatric ganglioglioma, respectively, in our literature review. The surgical management varied from biopsy to gross total resection, and adjuvant treatment was given after incomplete resection or at time of progression. A gross total resection should be attempted to remove the contrast enhancing part of the tumor, which may be possible in most of the cerebellar gangliogliomas and some of the brainstem lesions. The cervicomedullary ganglioglioma seems to be the most infiltrative and least amenable to complete resection. Chemotherapy has a limited role and BRAF mutation was reported in 38 to 54 % of cases. The use of radiotherapy exposes the patient to a risk of malignant transformation and should be reserved for unresectable tumors which progress. Conclusion: Pediatric posterior fossa gangliogliomas are rare and challenging tumors due to their frequent infiltrative component involving the brainstem. To date, adjuvant therapy has a limited role that may evolve with time thanks to the use of targeted therapies against BRAF mutation. The surgical resection of well-defined contrast enhancing parts should be attempted even in staged surgeries and balanced with the risks of neurological deterioration.Child s Nervous System 09/2015; 31(10):1707-16. DOI:10.1007/s00381-015-2860-x · 1.11 Impact Factor
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