Extradural Cysts

Extradural cysts are abnormal fluid-filled sacs that develop outside the protective covering of the spinal cord and brain. These cysts can cause various health issues, and understanding them is crucial for proper management. In this article, we’ll explain extradural cysts, their types, causes, symptoms, diagnostic tests, treatment options, and surgical procedures in simple, easy-to-understand language.

Types of Extradural Cysts:

  1. Arachnoid Cysts: Arachnoid cysts form when a portion of the arachnoid membrane, a protective layer around the brain and spinal cord, becomes filled with cerebrospinal fluid (CSF). These cysts are usually congenital, meaning they are present at birth.
  2. Meningioma: Meningiomas are slow-growing tumors that originate from the meninges, the membranes that cover the brain and spinal cord. While they are not cysts in the traditional sense, they can sometimes appear cystic on imaging studies due to their enclosed fluid.

Causes of Extradural Cysts:

  1. Congenital Factors: Arachnoid cysts are often present from birth, resulting from a developmental abnormality during fetal growth.
  2. Head Trauma: Traumatic injuries to the head or spine can lead to the formation of extradural cysts, such as arachnoid cysts.
  3. Infections: In rare cases, infections in the spinal cord or brain can lead to cyst formation.
  4. Meningioma: The exact cause of meningioma is still unclear, but genetic and hormonal factors may play a role in its development.
  5. Previous Surgery: Prior surgeries on the spine or brain can sometimes result in cysts as a complication.
  6. Idiopathic: In some cases, the exact cause of extradural cysts remains unknown, and these are referred to as idiopathic cysts.

Symptoms of Extradural Cysts:

  1. Headache: A persistent headache, often accompanied by pressure in the head, is a common symptom of extradural cysts.
  2. Neck or Back Pain: Cysts in the spinal region can cause localized pain or discomfort in the neck or back.
  3. Nausea and Vomiting: Increased intracranial pressure caused by large cysts can lead to nausea and vomiting.
  4. Vision Problems: Cysts near the optic nerves can cause visual disturbances, such as blurred vision or double vision.
  5. Seizures: In some cases, cysts can irritate the brain, leading to seizures.
  6. Balance Issues: Cysts near the cerebellum can affect balance and coordination.
  7. Weakness or Numbness: Pressure on the spinal cord can result in weakness or numbness in the arms or legs.
  8. Changes in Mental Status: Severe cases may lead to changes in consciousness, confusion, or even coma.
  9. Difficulty Swallowing or Speaking: Cysts in the upper spine may cause difficulty in swallowing or speaking.
  10. Bowel or Bladder Dysfunction: In rare cases, cysts in the lower spine can affect bowel or bladder control.

Diagnostic Tests for Extradural Cysts:

  1. MRI (Magnetic Resonance Imaging): MRI is the primary imaging technique to visualize extradural cysts. It provides detailed pictures of the brain and spinal cord.
  2. CT (Computed Tomography) Scan: CT scans may be used to complement MRI findings, especially in emergency situations.
  3. X-rays: X-rays are less commonly used but may help detect abnormalities in the spine or skull.
  4. Cerebrospinal Fluid Analysis: In some cases, a lumbar puncture (spinal tap) may be necessary to analyze the cerebrospinal fluid for signs of infection or bleeding.
  5. Neurological Examination: A thorough neurological examination is crucial to assess symptoms and determine the extent of neurological deficits.

Treatment Options for Extradural Cysts:

  1. Observation: Small, asymptomatic cysts may be monitored over time without immediate intervention.
  2. Medications: Pain relievers or anti-seizure medications may be prescribed to manage symptoms.
  3. Drainage: In some cases, a surgeon may recommend draining the cyst using a needle and catheter. This procedure is minimally invasive and can provide relief.
  4. Surgery: Surgical removal of the cyst may be necessary, especially if it is causing significant symptoms or if it’s compressing vital structures.

Common Surgical Procedures for Extradural Cysts:

  1. Craniotomy: In cases of intracranial cysts, a craniotomy involves removing a portion of the skull to access and remove the cyst.
  2. Laminectomy: For spinal cysts, a laminectomy involves removing a portion of the vertebral bone to access and remove the cyst.
  3. Endoscopic Surgery: Minimally invasive endoscopic techniques may be used to remove cysts, reducing the need for large incisions.
  4. Shunt Placement: In some cases, a shunt may be placed to divert excess cerebrospinal fluid away from the cyst, reducing pressure.

Common Drugs Used in the Treatment of Extradural Cysts:

  1. Pain Relievers: Over-the-counter pain relievers like ibuprofen or prescription medications may be used to alleviate headache or pain.
  2. Anti-Seizure Medications: Drugs like phenytoin or levetiracetam can help control seizures associated with cysts.
  3. Corticosteroids: These medications, such as prednisone, can reduce inflammation and swelling around cysts, providing relief from symptoms.
  4. Antibiotics: If an infection is the cause of the cyst, antibiotics will be prescribed to treat the underlying infection.
  5. Chemotherapy: For meningiomas, chemotherapy drugs may be used in conjunction with surgery or radiation therapy.

Conclusion:

Extradural cysts, including arachnoid cysts and meningiomas, can lead to a range of symptoms and complications. Early diagnosis through imaging techniques like MRI and appropriate treatment, which may include medication or surgery, is crucial for managing these conditions effectively. If you experience persistent headaches, neurological symptoms, or any of the mentioned signs, consult a healthcare professional promptly for evaluation and appropriate guidance.

 

Disclaimer: Each person’s journey is unique, treatment plan, life style, food habit, hormonal condition, immune system, chronic disease condition, previous medical  history is also unique. So always seek the best advice from a qualified medical professional or health care provider before trying any treatments to ensure to find out the best plan for you. This guide is for general information and educational purposes only. If you or someone are suffering from this disease condition bookmark this website or share with someone who might find it useful! Boost your knowledge and stay ahead in your health journey. Thank you for giving your valuable time to read the article.

  1. https://medlineplus.gov/skinconditions.html
  2. https://www.aad.org/about/burden-of-skin-disease
  3. https://www.usa.gov/federal-agencies/national-institute-of-arthritis-musculoskeletal-and-skin-diseases
  4. https://www.cdc.gov/niosh/topics/skin/default.html
  5. https://www.skincancer.org/
  6. https://illnesshacker.com/
  7. https://endinglines.com/
  8. https://www.jaad.org/
  9. https://www.psoriasis.org/about-psoriasis/
  10. https://books.google.com/books?
  11. https://www.niams.nih.gov/health-topics/skin-diseases
  12. https://cms.centerwatch.com/directories/1067-fda-approved-drugs/topic/292-skin-infections-disorders
  13. https://www.fda.gov/files/drugs/published/Acute-Bacterial-Skin-and-Skin-Structure-Infections—Developing-Drugs-for-Treatment.pdf
  14. https://dermnetnz.org/topics
  15. https://www.aaaai.org/conditions-treatments/allergies/skin-allergy
  16. https://www.sciencedirect.com/topics/medicine-and-dentistry/occupational-skin-disease
  17. https://aafa.org/allergies/allergy-symptoms/skin-allergies/
  18. https://www.nibib.nih.gov/
  19. https://rxharun.com/rxharun/rxharun/article-types/skin-care-beauty/skin-diseases-types-symptoms-treatment/
  20. https://www.nei.nih.gov/
  21. https://en.wikipedia.org/wiki/List_of_skin_conditions
  22. https://en.wikipedia.org/?title=List_of_skin_diseases&redirect=no
  23. https://en.wikipedia.org/wiki/Skin_condition
  24. https://oxfordtreatment.com/
  25. https://www.nidcd.nih.gov/health/
  26. https://consumer.ftc.gov/articles/w
  27. https://www.nccih.nih.gov/health
  28. https://catalog.ninds.nih.gov/
  29. https://www.aarda.org/diseaselist/
  30. https://www.ninds.nih.gov/Disorders/Patient-Caregiver-Education/Fact-Sheets
  31. https://www.nibib.nih.gov/
  32. https://www.nia.nih.gov/health/topics
  33. https://www.nichd.nih.gov/
  34. https://www.nimh.nih.gov/health/topics
  35. https://www.nichd.nih.gov/
  36. https://www.niehs.nih.gov
  37. https://www.nimhd.nih.gov/
  38. https://www.nhlbi.nih.gov/health-topics
  39. https://obssr.od.nih.gov/
  40. https://www.nichd.nih.gov/health/topics
  41. https://rarediseases.info.nih.gov/diseases
  42. https://beta.rarediseases.info.nih.gov/diseases
  43. https://orwh.od.nih.gov/

References