Subependymoma and unexpected death

Mörk, Sverre; Morild, Inge; Giertsen, J. Chr.

doi:10.1016/0379-0738(86)90135-0

Cited by 10 publications

(5 citation statements)

References 10 publications

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“…11 In addition, subependymomas cause central herniation or sudden death due to unilateral acute hydrocephalus with obstruction of the CSF passage from the third ventricle. 12,13 In our case, the patient presented with complaints of acute with a 22 Â 28 mm diameter lesion, which almost became compatible with the anatomy of the anterior third ventricle. In a 20-year period, Fujisawa et al reported only five subependymoma cases among 1,500 brain tumors, three of which were in the foramen of Monro, one was in the right foramen of Monro, and the other was in the septum pellucidum.…”

Section: Discussionsupporting

confidence: 55%

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Lateral Horizontal Head Position Approach for the Lateral and Anterior Third Ventricles: A Subependymoma Clinical Case and Literature Review

2022

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Subependymomas are benign, slow-growing, noninvasive solitary lesions of World Health Organization Grade I cerebral ependymal origin that are rare compared with other types of ependymomas. Anterior third ventricle subependymomas are usually detected during autopsies in cases of sudden death due to acute or intermittent obstruction of the cerebrospinal fluid passage. Different surgical approaches are used for these cerebral lateral and third ventricular lesions. Serious complications can occur, either because of brain edema and acute intracranial pressure due to the lesion itself or the chosen head position and continuous use of brain retractors during the surgical procedure.In this case report, we trust that the surgical principles we applied with the aid of two cotton pads, gravity assist, and lateral horizontal head position, and without continuous use of brain retractors in the third ventricular lesion in the transcallosal interhemispheric approach are safe and secure in preventing perioperative brain edema or early postoperative neurological complications.

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Section: Discussionsupporting

confidence: 55%

“… 11 In addition, subependymomas cause central herniation or sudden death due to unilateral acute hydrocephalus with obstruction of the CSF passage from the third ventricle. 12 13 …”

Section: Discussionmentioning

confidence: 99%

Lateral Horizontal Head Position Approach for the Lateral and Anterior Third Ventricles: A Subependymoma Clinical Case and Literature Review

2022

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“…Unexpected sudden death has occurred in patients with asymptomatic subependymoma of the medulla oblongata and the fourth ventricle, further suggesting that obstructive hydrocephalus and compression of vital structures may cause death in this population. 10,11 Correlations among age at presentation, histologic subtype, and prognosis have been described. 2,4 For instance, the mean age at presentation of pure subependymoma has been reported to be 46 years, while that of the mixed subtype was 20 years; the overall tumor-related mortality was higher in the latter group.…”

Section: Discussionmentioning

confidence: 98%

“…5,6 However, this may be an underestimate as many subependymomas remain asymptomatic and are found only incidentally by autopsy or imaging. Symptomatic subependymomas have variable clinical features, including pediatric onset, 7 huge size, 8 rapid growth, 9 and unexpected sudden death, 10,11 and their histology also varies from a pure to a mixed subtype. Pure subependymoma has a dense gliofibrillary background with prominent microcystic degeneration and clusters of cell nests, while about one-fifth of the subependymomas are of the mixed subtype containing glioma elements of ependymoma and astrocytoma.…”

Section: Introductionmentioning

confidence: 99%

Clinical features and management of five patients with supratentorial subependymoma

Fujisawa

Hasegawa

Ueno

2010

Journal of Clinical Neuroscience

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“…Eine Kompression der vitalen Zentren des Hirnstammes oder eine durch die Ventrikelerweiterung bedingte Herniation können auch bei symptomlosen und -armen Subependymomen zu akut lebensbedrohlichen Zuständen mit raschem Exitus führen (37,46,49).…”

Section: Scheith Aue R 197 8 (• 181unclassified

Klinik und Pathologie intrakranieller Subependymome - 18 eigene Fälle und Literaturübersicht

Ernestus

Schröder²

1993

Minim Invasive Neurosurg

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Intracranial subependymomas are rare, benign tumours (WHO grade I) occupying a special position compared to the other ependymal neoplasms. They often remain asymptomatic and, in consequence, are found incidentally at autopsy. In the present study clinico-pathological data of 84 symptomatic (8 own cases) and 58 asymptomatic tumours (10 own cases) are summarised. Subependymomas are more frequently situated in the fourth (58.4%) than in the lateral ventricle (38.0%). They occur predominantly in middle-aged and elderly males. Tumours in the lateral ventricles manifest themselves more often than those in the fourth ventricle. In general, asymptomatic subependymomas do not exceed a diameter of 1.2 cm. The nature of symptoms, with a median symptomatic period of 12 months, is usually associated with hydrocephalus, which is present in more than 80% of the symptom-producing subependymomas. Growth within the ventricular lumen and sharp demarcation from the surrounding brain tissue allow a complete removal in half of the cases. Radical extirpation can be achieved more often in patients with subependymomas located in the lateral ventricles than in those with tumours arising from the floor of the fourth ventricle. The high operative mortality, at a rate of 28.8% so far, mainly refers to the period before microsurgical technique was established. Recurrences are very rare, spinal seeding has not been found to date. For the assessment of long-term results further detailed compilation and documentation of individual follow-ups is necessary.

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Subependymoma and unexpected death

Cited by 10 publications

References 10 publications

Lateral Horizontal Head Position Approach for the Lateral and Anterior Third Ventricles: A Subependymoma Clinical Case and Literature Review

Lateral Horizontal Head Position Approach for the Lateral and Anterior Third Ventricles: A Subependymoma Clinical Case and Literature Review

Clinical features and management of five patients with supratentorial subependymoma

Klinik und Pathologie intrakranieller Subependymome - 18 eigene Fälle und Literaturübersicht

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