What is the cause of intermittent left-sided abdominal pain in an 11-year-old patient that worsens when lying on the left side, accompanied by a history of gastrointestinal issues, emesis (vomiting) 1-2 times daily, and 2-3 bowel movements (BMs) per day over the past year?

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Differential Diagnosis for 11 YO with Left Side Abdominal Pain

  • Single most likely diagnosis:
    • Constipation: The patient's symptoms of abdominal pain that comes and goes, worsens when lying on the left side, and has a history of stomach issues and normal bowel movements could be indicative of constipation. The emesis could be related to the constipation or other gastrointestinal issues.
  • Other Likely diagnoses:
    • Gastroesophageal reflux disease (GERD): The patient's history of stomach issues and emesis could be related to GERD, which is a common condition in children.
    • Irritable bowel syndrome (IBS): The patient's abdominal pain, changes in bowel movements, and emesis could be indicative of IBS.
    • Inflammatory bowel disease (IBD): Although less common, the patient's symptoms could be related to IBD, such as Crohn's disease or ulcerative colitis.
  • Do Not Miss (ddxs that may not be likely, but would be deadly if missed.):
    • Appendicitis: Although the pain is on the left side, appendicitis can present with atypical symptoms, and missing this diagnosis could be life-threatening.
    • Intussusception: This is a rare condition where the intestine telescopes into itself, causing severe abdominal pain and potentially life-threatening complications if not treated promptly.
    • Ectopic pregnancy (in post-pubertal females): Although unlikely, it's essential to consider ectopic pregnancy in post-pubertal females with abdominal pain, especially if there's a possibility of sexual activity.
  • Rare diagnoses:
    • Malrotation with volvulus: This is a rare condition where the intestine twists, causing severe abdominal pain and potentially life-threatening complications.
    • Meckel's diverticulum: A congenital anomaly of the small intestine that can cause abdominal pain, bleeding, or obstruction.
    • Chronic intestinal pseudo-obstruction: A rare condition characterized by recurrent episodes of abdominal pain, nausea, and vomiting due to impaired intestinal motility.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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