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Botryoid rhabdomyosarcoma

Dr Yuranga Weerakkody et al.

A botryoid rhabdomyosarcoma is a type of embryonal rhabdomyosarcoma and accounts for 5 - 10% of all rhabdomyosarcomas 6. 

Epidemiology

It tends to occur in paediatric population, often between birth and 15 years of age 7.

Pathology

They manifests as a polypoid or "grape like lesion" beneath the mucosa. 

Distribution

They occur principally beneath a mucous membranes 3,6. Recognised sites of occurrence include:

Radiographic features

MRI

Lesions can be large. signal characteristics are similar to rhabdomyosarcoma i.e 1

  • T1 - low to intermediate
  • T2 - high

Grapelike intraluminal masses would favour a botryoides type.

Differential diagnosis

For the pelvic / pre sacral region : consider

See also

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