Regresión espontánea de quiste coloide de tercer ventrículo en paciente pediátrica / Spontaneous resolution of colloid cyst of the third ventricle in a pediatric patient

Los quistes coloides son lesiones intracraneales benignas localizadas mayoritariamente en el III ventrículo en la región de los agujeros de Monro. La mayoría se presentan entre la tercera y cuartas décadas de la vida, y son poco frecuentes por debajo de los 10 años. Presentamos el caso de una niña de 2,5 años que presentaba un quiste coloide incidental que fue seguido de manera conservadora, observándose en los estudios de resonancia magnética una progresiva regresión en su tamaño. Realizamos una revisión de los 4 casos similares publicados con anterioridad (AU)

Colloid cyst are benign intracranial lesions located in the III ventricle in the region of the foramen of Monro. The majority present in the third and fourth decades of life and are rare under the age of ten. We report a case of an incidentally colloid cyst presented in a 2.5 -years-old girl who was managed conservatively; follow-up with MRI showed a progressive reduction in size. We review the four similar case previously reported (AU)

Hemorrhagic colloid cyst of the third ventricle: A rare cause of colloid cyst growth and progressive hydrocephalus. Case report / Quiste coloide hemorrágico del tercer ventrículo: una causa rara de crecimiento de los quistes coloides e hidrocefalia progresiva. Reporte de un caso

Introduction Acute spontaneous bleeding within a colloid cyst of the third ventricle is extremely rare. Accordingly, is difficult to establish reliable prognostic factors, risk factors for obstructive hydrocephalus remain poorly defined, and there are no standard management strategies. Case presentation 19-Year-old man with a colloid cyst of the third ventricle causing obstructive hydrocephalus is described, initially treated with partial endoscopic removal and ventriculo-peritoneal shunt placement. Serial neuroimaging follow-up showed gradual growth of the cyst due to clinically silent intracystic recurrent hemorrhage. Microsurgical transcallosal approach was performed and the cyst was totally resected. Pathological examination demonstrated hemorrhages of varying ages within the tumor. Conclusion Bleeding within a colloid cyst must be considered when neuroimaging follow-up shows cyst growth, even with no clinical events associated. Hemorrhagic changes within the colloid cyst should be considered in the surgical indication and approach. Resumen Introducción El sangrado espontáneo agudo en un quiste coloide del tercer ventrículo es extremadamente raro. En consecuencia, es difícil establecer factores pronósticos fiables, los factores de riesgo asociados a hidrocefalia obstructiva permanecen mal definidos y no existen estrategias de manejo estandarizadas. Presentación del caso Varón de 19 años con un quiste coloide del tercer ventrículo e hidrocefalia obstructiva, inicialmente tratado mediante extirpación endoscópica parcial y derivación ventriculoperitoneal. Posteriormente se demostró el crecimiento gradual del quiste debido a hemorragias intraquísticas recurrentes, clínicamente silentes. Se realizó un abordaje microquirúrgico transcalloso con resección completa. El examen anatomopatológico demostró la presencia de hemorragias en diferentes estadios dentro del tumor (AU)

Colloid cysts are rare and benign intracranial tumors located in the third ventricle. Reliably defining the natural history of colloid cysts has been challenging due to their low incidence and the small number of cases in most reported series. They are a well-known cause of obstructive hydrocephalus, with occasional rapid clinical deterioration, and even sudden death.1 Acute spontaneous bleeding within a colloid cyst of the third ventricle is a rare event usually causing a sudden increase of the cyst size, that results in obstructive hydrocephalus and clinical deterioration. This complication has only been reported in a few cases of the scientific literature.2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 For these reasons, risk factors for obstructive hydrocephalus in the setting of hemorrhagic colloid cysts remain poorly defined, there are no grading scales on which to develop standardized management strategies and is difficult to establish the reliable prognostic factors and surgical indications. We report a case of a colloid cyst of the third ventricle, that, after partial endoscopic removal developed progressive gradual growth due to recurrent and initially silent intracystic hemorrhages. The literature of this rare entity has been revised (AU)

Infarto occipital cortical bilateral secundario a hidrocefalia por quiste coloide del tercer ventrículo / Bilateral cortical occipital infarction secondary to hydrocephalus due to a colloid cyst in the third ventricle

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Quistes coloides subcutáneos posquirúrgicos / Post-surgical subcutaneous coloid cyst

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Quiste coloide y síndrome de Bruns / Colloid cyst and Bruns syndrome

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Quiste coloide hemorrágico del tercer ventrículo: deterioro fulminante / Hemorrhagic colloid cyst of the third ventricle: fulminant deterioration

Introducción. Los quistes coloides son tumores benignos del tercer ventrículo. La mayoría permanecen asintomáticos. Sin embargo, algunos pacientes pueden desarrollar desde cefaleas intermitentes hasta un deterioro agudo e incluso muerte súbita. Existen varias teorías por las que se produciría una muerte súbita en estos pacientes, entre las que se incluyen el rápido crecimiento del quiste, su rotura, la alteración del control cardiovascular reflejo mediado por el hipotálamo y, rara vez, el sangrado del quiste, con sólo 15 casos descritos en la bibliografía. Caso clínico. Varón de 45 años, con hipertensión arterial como único antecedente de interés, que sufre un deterioro brusco del nivel de consciencia a causa de una hidrocefalia aguda debida a un quiste coloide hemorrágico del tercer ventrículo. Se implantó un drenaje ventricular externo en cada lado e ingresó en la unidad de cuidados intensivos, donde se certificó la muerte encefálica. Tras la extirpación del quiste mediante abordaje transcortical frontal, se confirmó el diagnóstico de quiste coloide con restos de material hemolizado subagudo. Conclusión. La hemorragia en los quistes coloides es excepcional y puede producirse en pacientes tanto sintomáticos como asintomáticos, lo que dificulta, de forma extraordinaria, el reconocimiento de esta complicación (AU)

Introduction. Colloid cysts are benign tumors of the third ventricle. Most of them remain asymptomatic. However, some patients can develop since intermittent headaches to an acute deterioration and even sudden death. Several theories exist for which there would be a sudden death in these patients, among which include the rapid increase in size of the cyst, its rupture, the disturbance of hypothalamus-mediated cardiovascular reflex control and the unusual bleeding of the cyst, with only 15 cases described in the literature. Case report. A 45 year old male with hypertension with acute hydrocephalus due to a hemorrhagic colloid cyst in the third ventricle. An external ventricular drain on each side was introduced and he was admitted to the ICU, where brain death was certified. After removal of the cyst through transcortical frontal approach, the diagnosis of colloid cyst with remains of hemolyzed blood was confirmed. Conclusion. Bleeding in colloid cysts is exceptional, and can occur in both symptomatic and asymptomatic patients, making it difficult to recognize this complication (AU)