Meningoceles

What are meningoceles?

Meningoceles are conditions in which the protective membranes surrounding the brain and spinal cord protrude through an opening in the skull or spine. Unlike encephaloceles, meningoceles do not involve brain tissue. These conditions are most often present at birth as part of a neural tube defect, but in some cases may be identified later in life, depending on their size and location. At UTHealth Houston, we provide expert evaluation and care for meningoceles, with a focus on accurate diagnosis, thoughtful treatment planning, and long-term support.

What causes of meningoceles?

Meningoceles are typically caused by incomplete closure of the neural tube during early fetal development. This process occurs very early in pregnancy, and disruptions can lead to openings in the skull or spinal column. Factors such as genetics and insufficient folic acid intake during pregnancy may increase the risk. In rare cases, similar defects may develop later in life due to trauma, prior surgery, or gradual weakening of bone and surrounding tissues.

Symptoms of meningoceles

Symptoms vary depending on the size and location of the meningocele. In some cases, a visible sac or bulge is present at birth along the spine or skull. Other patients may have few or no symptoms, particularly if the defect is small. When symptoms do occur, they may include headaches, neurological changes, or symptoms related to associated spinal or cranial abnormalities. In certain cases, meningoceles may be discovered during imaging performed for another reason.

How are meningoceles diagnosed

Diagnosis is usually made with imaging studies such as MRI or CT scans, which clearly show the protrusion of the meninges without involvement of brain tissue. In newborns, the condition may be identified during prenatal imaging or shortly after birth. For patients diagnosed later in life, imaging helps define the size and location of the defect and guides treatment decisions. At UTHealth Houston, advanced imaging and specialist evaluation ensure an accurate and comprehensive diagnosis.

Treatment of meningoceles

Treatment often involves surgical repair to close the defect and protect surrounding structures, particularly when there is a risk of infection or fluid leakage. In some cases, careful monitoring may be appropriate if symptoms are minimal and the risk of complications is low. At UTHealth Houston, our team works closely with patients and families to determine the best approach, providing coordinated care and long-term follow-up to support the best possible outcomes.