[30F] With pelvic instability, groin pain, and systemic symptoms

Patient Description

A 30-year-old female presents with a complex array of symptoms including pelvic instability, groin pain, and systemic concerns. The patient reports a sensation of pelvic tilting, weakness in the knees, and difficulty walking due to unsteadiness. She describes sharp, burning pain in the right groin radiating to the outer hip and knee, which worsens with walking and improves when sitting with her leg level to her body. Additionally, she notes swelling in the inner thighs and a pulling sensation in the pubic area, with the vaginal area appearing "pulled down" and the anus feeling "tucked inward." The patient also experiences difficulty with intimacy, describing vaginal tightness and involuntary resistance or pushing out during intercourse. Her medical history includes muscle weakness in the neck extensors, shoulders, and hips, bilateral scapular winging, and enlarged cervical lymph nodes with cortical thickening noted on ultrasound. She has chronic symptoms of sun sensitivity with red rashes, purple discoloration of the knees, and systemic symptoms such as unintentional weight loss (~60 lbs in the past year), low-grade fevers, fatigue, and near-fainting episodes. An EMG revealed chronic neuropathic changes in specific muscles (e.g., right gluteus medius, left rectus femoris, right vastus medialis) and early neuropathic changes in the bilateral tibialis anterior, suggestive of chronic multilevel proximal lumbar radiculopathy involving L4 and possibly L5 nerve roots. There is no evidence of large fiber polyneuropathy or lumbosacral plexopathy. The patient is currently taking Flexoryl and Pregabalin. She has undergone physical therapy, which noted sharp groin pain during specific tests (e.g., SLR and FABER) and positional intolerance. The patient expresses concern about systemic or neuromuscular conditions contributing to her symptoms, given the constellation of findings. A lumbar MRI has been recommended to evaluate for nerve root compression, and further evaluation by rheumatology and neurology is advised to rule out autoimmune or neuromuscular disorders. Additional imaging of the pelvis and blood tests for inflammation, autoimmune markers, and muscle enzymes may be warranted to clarify the underlying cause of her symptoms.

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Arora's Assessment

What might be happening

Based on the information you’ve provided, your symptoms likely involve multiple underlying issues. Here’s a summary of the most likely causes:

1. Chronic Lumbar Radiculopathy

Your EMG findings suggest chronic irritation or compression of the L4 and possibly L5 nerve roots in your lumbar spine. This can explain:

  • Groin pain: Nerve root compression can cause radiating pain to the groin, outer hip, and knee.
  • Pelvic tilting and instability: Weakness in muscles like the gluteus medius and rectus femoris can lead to abnormal pelvic alignment.
  • Knee weakness and unsteadiness: Early neuropathic changes in the tibialis anterior muscles may contribute to difficulty walking.

2. Pelvic Floor Dysfunction

The pulling sensation in your pubic area, tightness during intimacy, and changes in pelvic alignment may be related to pelvic floor muscle dysfunction. This could stem from:

  • Muscle imbalances caused by nerve irritation (radiculopathy).
  • Chronic tension or weakness in the pelvic floor muscles.
  • Possible structural changes in the pelvis.

3. Autoimmune or Connective Tissue Disorder

Your history of sun sensitivity, rashes, purple knees, and systemic symptoms (e.g., weight loss, fatigue, enlarged lymph nodes) raises concern for conditions like lupus or dermatomyositis. These could explain:

  • Scapular winging: Muscle inflammation or weakness.
  • Systemic symptoms: Fatigue, fevers, and weight loss.
  • Lymph node enlargement: Cortical thickening on ultrasound may indicate inflammation or immune system activation.

4. Neuromuscular Disorder

While less likely, your symptoms (e.g., difficulty swallowing, muscle weakness, and pelvic instability) could suggest a neuromuscular condition like myasthenia gravis or ALS. However, your EMG findings do not strongly support these diagnoses.


What you can do

1. Address Groin Pain and Pelvic Instability

  • Seek imaging: A lumbar MRI is essential to confirm nerve root compression and identify structural issues like disc herniation or spinal stenosis.
  • Consider physical therapy: Work with a pelvic floor specialist or physical therapist to improve muscle balance and pelvic stability.
  • At-home care:
    • Avoid activities that worsen pain, like prolonged walking or standing.
    • Use supportive seating to relieve pressure on your pelvis.
    • Gentle stretches for the hip and lower back may help reduce tension.

2. Evaluate Systemic Symptoms

  • Consult a rheumatologist: Blood tests for autoimmune markers (e.g., ANA, anti-dsDNA) can help rule out lupus or other connective tissue disorders.
  • Monitor lymph nodes: If they remain enlarged or worsen, further imaging or biopsy may be needed.
  • At-home care:
    • Protect your skin from sun exposure with sunscreen and clothing.
    • Track systemic symptoms like fevers, fatigue, and weight loss using MDandMe to share with your doctor.

3. Manage Muscle Weakness

  • Neurology consult: A neurologist can assess for neuromuscular conditions and correlate EMG findings with your symptoms.
  • Physical therapy: Exercises targeting scapular winging, neck strength, and lower extremity stability can help restore function.
  • At-home care:
    • Avoid heavy lifting or activities that strain weak muscles.
    • Use heat or ice packs for pain relief in affected areas.

4. Address Intimacy Concerns

  • Pelvic floor evaluation: A specialist can assess tightness or dysfunction in the vaginal and pelvic muscles.
  • At-home care:
    • Practice relaxation techniques to reduce pelvic muscle tension.
    • Consider using a vaginal dilator or lubricant if intimacy becomes painful.

What you should look out for

Seek urgent medical attention if you experience:

  • Worsening groin pain or inability to walk.
  • Severe pelvic instability or inability to sit upright.
  • New or worsening systemic symptoms, such as high fevers, night sweats, or rapid weight loss.
  • Signs of nerve damage, such as numbness, tingling, or loss of bladder/bowel control.

Your symptoms are complex and require attention from multiple specialists, including a neurologist, rheumatologist, and pelvic floor therapist. Using MDandMe to journal your symptoms and track progress can help provide valuable insights for your providers. Let me know if you need further clarification or support!

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