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Rhabdomyoma of the orbit: a case report

JaeSung Myung1, In-One Kim, Jung-Eun Chun

  • 1Department of Radiology, Institute of Radiation Medicine, Seoul National University Medical Research Centre, Seoul, Korea.

Pediatric Radiology
|July 24, 2002
PubMed

Insights

Extracardiac rhabdomyoma, a rare orbital tumor, can cause proptosis in infants. Early MRI diagnosis is crucial as this benign neoplasm may recur after surgical removal.

Area of Science:

  • Ophthalmology
  • Pathology
  • Radiology

Background:

  • Extracardiac rhabdomyoma is a rare benign neoplasm originating from skeletal muscle.
  • Orbital involvement is exceptionally rare, with only four previously reported cases.
  • This highlights the rarity of rhabdomyoma in the orbital region.

Observation:

  • A 3-month-old infant presented with right proptosis.
  • Magnetic Resonance Imaging (MRI) revealed an enhancing intraconal orbital mass.
  • The mass demonstrated characteristic signal intensities: isointense on T1-weighted and hypointense on T2-weighted images.

Findings:

  • The surgically removed mass was diagnosed as rhabdomyoma.
  • Recurrence of the rhabdomyoma was observed 8 months post-surgery.
  • This case underscores the potential for recurrence even after complete excision.

Implications:

  • Characteristic MRI findings can aid in the preoperative diagnosis of orbital rhabdomyoma.
  • Awareness of this rare entity and its imaging features is important for ophthalmologists and radiologists.
  • Close follow-up is recommended due to the risk of tumor recurrence.

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