Rhabdomyoma

Rhabdomyoma a benign muscle tumour. Often seen in the context of tuberous sclerosis.

General

• May be seen in the context of tuberous sclerosis.

Microscopic

Features:

• Spider cells:
  • Large polygonal cells (~10-20x RBC diameter):
    • Abundant cytoplasm filled with glycogen.

DDx:

• Lipoma.
• Fat necrosis.

Images:

• Rhabdomyoma (brown.edu).
• Rhabdomyoma of the soft palate (webpathology.com).