Sarcopedia

BenignSoft tissue

Rhabdomyoma

Synonyms: Benign embryonal rhabdomyoma, fetal rhabdomyoma

Benign muscle tumour

Quick Facts

Behaviour

Benign

Category

Soft tissue

Synonyms

  • Benign embryonal rhabdomyoma
  • fetal rhabdomyoma

Category

Soft tissue

Behaviour

Benign

Gender

M = F

Tissue of Origin

Skeletal muscle

Epidemiology

  • Rare Benign muscle tumour
  • Presents in children and young adults
  • Cardiac form can present in infants

Clinical Features

  • Slowly growing mass or incidental finding
  • Cardiac form: arrhythmias or heart failure

Location

  • Biliary tract
  • Bladder
  • Paratesticular
  • Cardiac (embryonal subtype)

Imaging

Ultrasound or MRI: well-defined mass

Pathology

  • Benign embryonal skeletal muscle differentiation
  • No atypia, no mitotic activity

Genetics

Sporadic

Treatment

Observation or marginal excision

Prognosis

Excellent - Benign with no Malignant potential

Key Points

  • Benign muscle tumour
  • No transformation to rhabdomyosarcoma

Workup - Blood Tests

No blood tests required

Workup - Local Imaging

Ultrasound or MRI for characterisation

Workup - Biopsy

Rarely required

Workup - Staging

No staging required

Medical disclaimer

The content on Sarcopedia is for educational and informational purposes only and does not constitute medical advice. It is not intended to be a substitute for professional medical diagnosis or treatment. Always consult with a qualified physician regarding any health concerns or before starting any new treatment. Reliance on any information provided on this site is solely at your own risk.