Colloid cyst: unusual location of petrous temporal bone

Colloid cysts are benign, thin walled spherical neoplasms, composed of a collagenous capsule, underlying epithelium that arises from brain’s epidermal embryonic remnants and a viscous centre. They are shown to approximate 0.5% of all intracranial tumours with no recorded evidence of the petrous temporal bone involvement. Colloid cyst of the petrous temporal bone often presents with clinical symptoms of headache, hearing loss, facial palsy and imbalance/vertigo. Which is diagnosed on radiological and histological findings. Histologically, they are lined by ciliated cuboidal to pseudo stratified columnar epithelium resting on an eosinophilic basement membrane. Imaging Techniques are helpful in early diagnosis and preventing further complications. Here we will be discussing about a 24-year-old female, a known case of petrous apex osseous haemangioma presenting with unstable gait and tingling sensation on one side of face leading to an incidental finding of a colloid cyst on petrous temporal bone through histological examination.

Intracranial colloid cyst in a young female with neurofibromatosis type 1: A case report

INTRODUCTION@#Intracranial colloid cysts are rare benign tumors located in the region around the foramen of Monro or around the third ventricle with an annual incidence of 3 of 1,000,000. The common clinical picture is a progressive headache due to the rapid enlargement of the cyst, resulting in hydrocephalus as it obstructs the cerebrospinal flow; brain herniation may ensue, leading to death. @*OBJECTIVES@#The objectives of this report are to (1) present a case of intracranial colloid cyst in a young female with neurofibromatosis type 1, (2) emphasize the importance of early diagnosis by clinical signs and symptoms and (3) highlight the importance of neuroimaging in arriving at a neurologic diagnosis.@*CASE REPORT@#A nineteen-year-old female was seen due to a three-month history of progressive headache, with associated signs of increased intracranial pressure and with a medical history of neurofibromatosis type 1, inherited from her mother. Neurologic findings revealed papilledema and 6th cranial nerve palsy. By radiographic imaging with clinical correlation, patient was diagnosed with a colloid cyst obstructing the foramen of Monro. Surgical intervention was done and patient improved without complications. @*DISCUSSION@#Neurofibromatosis is a hereditary neurocutaneous syndrome in which the skin, nervous system, bones, endocrine glands and sometimes other organs are the sites of a variety of congenital abnormalities, often taking the form of benign tumors. Intracranial colloid cyst was seen in this case report. Colloid cysts have an incidence of 0.5 – 1% of all primary brain tumors and are the most common masses in the third ventricle and in the Foramen of Monro. They cause obstruction of CSF flow, resulting in hydrocephalus. No published case of neurofibromatosis type 1 patients with a symptomatic intracranial colloid cyst has been reported yet. Surgical resection is the treatment of choice for colloid cyst.

Diverse Presentation of Intraventricular Colloid Cysts – A Tale of Eight Cases

Introduction: Colloid cysts are one of the benign intracranial tumors most commonly occurring in the rostral part of the thirdventricle. These may present with varied spectrum of clinical features that poses challenges in clinical diagnosis. The presentationmay range from being asymptomatic to simple headaches, seizures, and even sudden death. Most of the symptoms can beattributed to the development of obstructive hydrocephalus. Chemical or aseptic meningitis is unusual complication posingcomplicating differential diagnosis. We describe eight such cases with wide variety of symptoms.Materials and Methods: We present a case series of eight cases of the third ventricle colloid cysts presented at our institute.Age of the patients ranged from 15 to 55 and five of them were females. All the clinical features were recorded from eachone of them. Computed tomography and magnetic resonance imaging were used to diagnose the condition. Four of themunderwent excision of the cyst in single stage either by open or endoscopic approach. Two patients underwent preliminaryventriculoperitoneal shunt done in the view of poor neurological status and craniotomy and excision was done in later stage. Inone patient bedside external ventricular drain was inserted for emergency decompression of ventricles. One patient is underserial radiological follow-up.Results: Eight cases that we observed had wide variety of symptoms. Six patients had chronic headache with progressiveseverity, and four of them had nausea with vomiting, three patients had seizures. The cysts in two patients were discoveredaccidentally, during the evaluation of seizures in one patient and others in evaluation of traumatic head injury. One elderly patienthad presented with psychiatric symptoms, drop attacks along with the features of normal pressure hydrocephalus. One teenagepatient presented with sudden deterioration and went into cardiac arrest even after emergency decompression of ventriclesdone. Seven of them underwent surgery and one of them succumbed. The surgery improved health in all other seven patients.Conclusion: Colloid cysts may present with a wide range and beyond expected neurological manifestations. The severity orrapid clinical deterioration does not exactly correlate with depending on the site, size of the cyst. Leaking cysts with chemicalmeningitis may further complicate the diagnosis. Hence, early diagnosis and surgery with complete removal of cysts offer betterclinical outcomes in those patients.

Transcortical Endoscopic Surgery for Intraventricular Lesions

To review recent advances in endoscopic techniques for treating intraventricular lesions via transcortical passage. Articles in PubMed published since 2000 were searched using the keywords ‘endoscopy,’‘endoscopic,’ and ‘neuroendoscopic.’ Of these articles, those describing intraventricular lesions were reviewed. Suprasellar arachnoid cysts (SACs) can be treated with ventriculo-cystostomy (VC) or ventriculo-cysto-cisternostomy (VCC). VCC showed better results compared to VC. Procedure type, fenestration size, stent placement, and aqueductal patency may affect SAC prognosis. Colloid cysts can be managed using a transforaminal approach (TA) or a transforaminal-transchoroidal approach (TTA). However, TTA may result in better exposure compared to TA. Intraventricular cysticercosis can be cured with an endoscopic procedure alone, but if pericystic inflammation and/or ependymal reaction are seen, third ventriculostomy may be recommended. Tumor biopsies have yielded successful diagnosis rates of up to 100%, but tumor location, total specimen size, endoscope type, and vigorous coagulation on the tumor surface may affect diagnostic accuracy. An ideal indication for tumor excision is a small tumor with friable consistency and little vascularity. Tumor size, composition, and vascularity may influence a complete resection. SACs and intraventricular cysticercosis can be treated successfully using endoscopic procedures. Endoscopic procedures may represent an alternative to surgical options for colloid cyst removal. Solid tumors can be safely biopsied using endoscopic techniques, but endoscopy for tumor resection still results in considerable challenges.

The application of cystic cavity flushing technique in percutaneous ethanol sclerotherapy for thyroid colloid cysts / 介入放射学杂志

Objective To discuss the application of cystic cavity flushing technique in percutaneous ethanol sclerotherapy for the thyroid colloid cysts.Methods A total of 49 patients with thyroid colloid cysts were randomly divided into the study group (n=33) and the control group (n=16).Patients in the study group received cystic cavity flushing treatment by using saline together with α-chymotrypsin,which was followed by percutaneous ethanol injection (PEI).Patients in the control group underwent simple aspiration of cyst fluid followed by PEI.The residual cystic volume,the effective rate and the untoward effects were calculated at one,3 and 6 months after the treatment,and the results were compared between the two groups.Results Striking difference in the changes of postoperative residual cystic volume existed between the study group and the control group.The effective rate of PEI in the study group was 93.9％,which was obviously better than 68.8％ in the control group,the difference between the two groups was statistically significant (P＜0.05).No untoward effect was observed during the performance of aspiration of cyst fluid and flushing of cystic cavity.Nevertheless,bad side effect occurred in PEI procedure in both the study group (6.1％) and the control group (8.3％),but the difference was not statistically significant (P=0.75).Conclusion For the treatment of thyroid colloid cysts,the use of aspiration of cyst fluid together with cystic cavity flushing technique by using saline combined with α-chymotrypsin is safe and reliable,it can improve the curative effect of subsequent PEI.

Spontaneous enlargement then regression of a colloid cyst of the III ventricle.

Aim: We describe a case of a 22 year old pregnant female patient who was found to have a small colloid cyst that increased spontaneously, followed by spontaneous significant reduction in size. Presentation of Case: The patient’s colloid cyst was picked up incidentally in late pregnancy at 39 weeks. It showed spontaneous increase in size accompanied by deterioration of symptoms at 31 months post diagnosis and then showed significant spontaneous reduction in size at 38 months post diagnosis. Discussion and Conclusion: Spontaneous reduction of a colloid cyst of third ventricle is a very rarely described phenomenon. To our knowledge this is one of only 3 cases of spontaneous regression of an III ventricular colloid cyst. It may be reasonable to follow up cases, where there is a documented history of increase.

Quiste coloide del tercer ventrículo en un niño. A propósito de un caso / Colloid cyst. Report of a case in a child

Los quistes coloides son lesiones congénitas e infrecuentes, con una frecuencia del 0,2 al 2 % de todos lo tumores intracraneales. Se presentan en adultos jóvenes y tiene predominio en varones. Normalmente esféricos u ovoides, tienen un tamaño que varía desde pocos milímetros hasta tres o cuatro centímetros de diámetro. Comienzan a ser sintomáticos en la adolescencia o edad adulta temprana. Las manifestaciones clínicas pueden ser intermitentes y poco específicas. Deben ser considerados entre los diagnósticos diferenciales de cefalea en niños y adultos jóvenes, puede ser causa temprana de hidrocefalia aguda y síntomas neurológicos inespecíficos. El tratamiento recomendado es su extirpación quirúrgica temprana. Se presenta este caso por su presentación ocasional y extraordinaria en edad pediátrica.

The colloid cysts are infrequent congenital lesions of the brain. They are more frequent in adolescent and young adults, who present different clinical manifestation. The shape and size is variable. They should be considered in adolescent and young adults, it is common the early and acute presentation of hydrocephaly. We describe this case, because the unusual presentation in a child. The recommended treatment is the early surgical removal of the cyst.

Colloid cyst of the third ventricle: imaging findings with pathologic correlation

Colloid cysts of the third ventricle are benign tumors but potentially dangerous, as they frequentlyundergo undiagnosed. Despite being histologically benign, colloid cysts of the third ventricle can obstruct the foramen of Monro and produce intense hydrocephaly. These lesions are known as a major cause of sudden death, underscoring the importance of establishing diagnosis as soon as possible. Computed tomography and Magnetic Resonance are important for diagnosing these cysts. In the present case report, the authors describe the clinical, diagnostic imaging and pathological findings of a 19-year old male, with a 3 cm colloid cyst of the third ventricle. Patient died within few days following complications of obstruction of the foramen of Monro

Síndrome del muñeco cabeza de resorte por quiste aracnoideo selar en un adulto / Bobble-head doll syndrome by selar arachnoid cyst in an adult

El síndrome del muñeco cabeza de resorte es un raro trastorno usualmente descrito en la población pediátrica como resultado de lesiones selares y del tercer ventrículo, especialmente quistes coloides. Su fisiopatología no está bien esclarecida. Se ha planteado que los trastornos del funcionamiento de las aferencias y eferencias hacia el núcleo dorso-medial del tálamo originarían los movimientos y estos permanecerían en el tiempo gracias a fenómenos de aprendizaje. Presentamos un raro caso del síndrome del muñeco cabeza de resorte de una paciente adulta como consecuencia de un quiste aracnoideo selar con extensión paraselar a través de la fisura de Silvio. Se realizaron comunicaciones del quiste hacia las cisternas adyacentes con lo cual se logro control completo de los síntomas tras 48 horas del procedimiento.

Bobble head doll syndrome is a rare disorder usually described in the pediatric population as a result of sellar lesions and the third ventricle, especially colloid cysts. Its pathophysiology is not well understood. It has been suggested that functional disorders of the afferent and efferent system to the dorso-medial nucleus of the thalamus causes of the movement and these remain over time through learning phenomena. We present a rare case of bobble head doll syndrome in an adult patient caused by a sellar arachnoid cyst with parasellar extension through the Sylvian fissure. Communications were made from the cyst into adjacent cisterns thereby achieving complete control of symptoms after 48 hours of the procedure.

Stereotactic Removal of the Third Ventricle Colloid Cyst

Colloid cyst of the third ventricle is rare intracranial lesion. It has been estimated that they comprise approximately 0.55% of all tumors of the brain. A new interest has been developed in this lesion, which is completely benign histologically but, because of its deep and strategic location, poses a difficult therapetic problem. The contrast between the histological benignancy and the risk of morbidity and mortality associated with often surgical exploration and removal has led to alternative procedures. We reported here a 33-year-old male patient with colloid cyst of the third ventricle presenting with headache and vomiting. Who was treated by stereotacic removal utilizing CRW stereotactic system and followed up post-operatively for more than 3 years.

Colloid Cyst of the Lateral Ventricle: A Case Report

No abstract available.