Differential Diagnosis for Swollen Scrotum in 2-year-old with Diarrhea
- Single most likely diagnosis:
- Acute scrotum due to viral gastroenteritis: This condition is likely given the combination of a swollen scrotum and diarrhea in a 2-year-old. Viral gastroenteritis can cause inflammation that may spread to the scrotum.
- Other Likely diagnoses:
- Urinary tract infection (UTI): A UTI can cause scrotal swelling and may be accompanied by gastrointestinal symptoms like diarrhea.
- Henoch-Schönlein purpura (HSP): This condition is a form of vasculitis that can cause scrotal swelling, abdominal pain, and diarrhea.
- Inguinal hernia: An inguinal hernia can cause scrotal swelling and may be more noticeable during episodes of increased abdominal pressure, such as during diarrhea.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.):
- Testicular torsion: Although less likely in the presence of diarrhea, testicular torsion is a medical emergency that requires prompt attention. It can cause severe scrotal pain and swelling.
- Appendicitis: Appendicitis can cause abdominal pain, diarrhea, and scrotal swelling if the appendix is located near the scrotum.
- Intussusception: This condition involves the telescoping of a portion of the intestine into another, which can cause abdominal pain, diarrhea, and scrotal swelling if the intussusception is located near the scrotum.
- Rare diagnoses:
- Scrotal cellulitis or abscess: Bacterial infections can cause scrotal swelling and may be accompanied by systemic symptoms like diarrhea.
- Kawasaki disease: This condition is a rare form of vasculitis that can cause scrotal swelling, abdominal pain, and diarrhea.
- Lymphoma or other malignancies: Although extremely rare in this age group, malignancies can cause scrotal swelling and systemic symptoms like diarrhea.