True Cervicothoracic Meningocele: A Rare and Benign Condition

[Congenital malformations of the brain misinterpreted as sequelae of poliomyelitis]

BACKGROUND

Poliomyelitis is an infectious disease of the peripheral motor neurons, which predominantly affects children and causes residual palsies. Because of the oral poliomyelitis vaccination started in Germany in 1960 and 1962 and the following rapid decline of the incidence of this infection, the postpolio syndrome in Germany is a disease of older people.

METHODS

Since 2008, we have offered a poliomyelitis outpatient consultation at the Center of Geriatrics, Protestant Hospital Göttingen-Weende and have treated 33 patients.

RESULTS

The spectrum of persistent deficits after poliomyelitis ranges from palsy of single extremities to severe disability with (temporary) ventilator dependence. Many patients suffer from scoliosis or shortening of limbs of different degrees, which promotes degenerative diseases of the spinal cord and joints with secondary myelopathy, injury of spinal nerve roots or peripheral nerves or respiratory failure. The postpolio syndrome is characterized by an increase of the functional deficits after decades of compensation. The palsies of 2 of the 33 patients were not caused by poliomyelitis but by myelomeningocele and schizencephaly, respectively.

CONCLUSION

The motor deficits acquired in childhood enable the majority of the patients to successfully master their lives. Because of the limited compensatory capacities of postpolio patients, even small increases in the severity of the palsy can cause a severe decline of the functional status and an impairment of the ability to live an independent life. In a substantial proportion of patients with the diagnosis poliomyelitis the symptoms are caused by other diseases.

Prenatal Diagnosis and Outcomes of Cervical Meningocele and Myelomeningocele

Prenatal diagnosis of myelomeningocele remains challenging for obstetricians, ultrasonographers, and radiologists, although the increased maternal serum alpha-fetoprotein level aids in the confirmative diagnosis. Fetal cervical myelomeningocele and meningocele are very rare and unique types of myelomeningocele. Prenatal diagnosis of cervical myelomeningocele and meningocele should include the differential diagnosis and association of many intracranial and spino-skeletal pathogenetic variants and genetic diseases, including subependymal nodular heterotopia and Klippel-Feil syndrome. In this report, a comprehensive review of fetal cervical myelomeningocele with its prenatal diagnosis and long-term outcomes is presented.

Spinal Dermoid and Epidermoid Cyst: An Institutional Experience and Clinical Insight into the Neural Tube Closure Models

Objectives  The spinal dermoid and epidermoid cysts (SDECs) are rare entities comprising less than 1% of pediatric intraspinal tumors. The present study aims to extrapolate the clinicoradiological data, in order to identify the most plausible neural tube closure model in human and provide a retrospective representation from our clinical experience.

Materials and Methods  We collected the details of all histologically proven, newly diagnosed primary SDECs who underwent excision over the past 20 years. Secondary or recurrent lesions and other spinal cord tumors were excluded. Surgical and follow-up details of these patients as well as those with associated spinal dysraphism were reviewed. Clinical and radiological follow-up revealed the recurrence in these inborn spinal cord disorders.

Results  A total of 73 patients were included retrospectively, having a mean age of 22.4 ± 13.3 years, and 41 (56.2%) cases fell in the first two decades of life. Twenty-four (32.9%) dermoid and 49 (67.1%) epidermoid cysts comprised the study population and 20 of them had associated spinal dysraphism. The distribution of SDECs was the most common in lumbosacral region ( n = 30) which was 10 times more common than in the sacral region ( n = 3). Bladder dysfunction 50 (68.5%) and pain 48 (65.7%) were the most common presenting complaints. During follow-up visits, 40/48 (83.3%) cases showed sensory improvement while 11/16 (68.7%) regained normal bowel function. There was no surgical mortality with recurrence seen in eight till the last follow-up.

Conclusions  The protracted clinical course of the spinal inclusion cysts mandates a long-term follow-up. The results of our study support the multisite closure model and attempt to provide a retrospective reflection of neural tube closure model in humans by using SDECs as the surrogate marker of neural tube closure defect.

Postoperative cardiorespiratory arrest in a case of cervical meningocele

Background:

Meningoceles are congenital herniation of meninges and cerebrospinal fluid (CSF) through the skull and are bereft of any cerebral tissue. They are commonly found over the anterior fontanelle. Although some cases of cervical dysraphism have been described in the literature, a true meningocele has rarely been seen. The child usually presents with hydrocephalus with features of raised increased intracranial pressure. Sensory, motor, and sphincter functions may be involved depending on the level of lesion. Closure of meningocele should be ideally done within the first 48 h of birth.

Case Description:

Complications associated with meningocele range from learning disabilities, seizures, and bowel dysfunction to complete paralysis below the level of the lesion. The postoperative complications reported are wound infection, CSF leak/collection, urinary tract infection, deterioration of deficit, and death. Here, we present a postoperative case of an 11-month-old child with cervical meningocele who had an unusual complication almost 2 h after an uneventful surgery in the form of sudden cardiorespiratory arrest was revived successfully.

Conclusion:

A meningocele surgery is usually not associated with severe postoperative complications which can be encountered in meningomyelocele surgery. Here, in our case, the child with uneventful meningocele surgery arrested 2 h postsurgery with the possible cause being cervical cord edema. Hence, a lesson was learned that strict vigilance is also required in postoperative care for meningocele patients.

Cervicothoracic Spinal Dysraphism: Unravelling the Pandora's Box

Introduction

Cervicothoracic spinal dysraphism (CTSD) is relatively rare with reported incidence of 1%-6.5%. The entity has a separate spectrum of associations with other anomaly such as split cord malformation, Chiari malformation, and corpus callosum agenesis as compared with its lumbosacral counterpart. In this study, we have highlighted the associated anomalies (AAs). To the best of our knowledge, this study is one of the largest series reported before.

Materials and Methods

In this study, we included the patients with spinal dysraphism operated between December 2007 and December 2017 at the Department of Neurosurgery. All patients underwent neurological and radiological examinations followed by surgical excision of the sac and exploration of the intradural sac. Neurological, orthopedic, and urological abnormalities were analyzed in our retrospective description. The last available follow-up in hospital records was taken for outcome assessment.

Results

Of 34 cases, 18 were women and 16 were men. Seven of nine patients in cervical group had AAs, whereas 22 of 25 patients in dorsal group had AA. In this study, we taken 6 patients with Chiari malformation, 4 with corpus callosum agenesis, 7 with hydrocephalus, and 16 with split cord malformation. The follow-up ranges from 1 year to 11 years with a mean of 59.45 months.

Conclusion

The management strategy and association with other congenital anomalies separate CTSD as different clinical entity as compared with their lumbosacral counterparts. These patients show relatively favorable outcome with regard to neurological, orthopedic, and urological symptoms. Early surgical intervention after proper radiological and clinical evaluation is recommended.