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Nervous system

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middle ear mass


  • glomus tumor (multiple in 10%; 8% malignant)
    • glomus tympanicum
      • from cochlear promontory
      • seldom erodes bone
    • glomus jugulare
      • invasion of middle ear from below
      • destruction of bony roof of jugular fossa and bony spur separating vein from carotid artery
  • abberant carotid artery (no bony margin)
  • enlarged jugular bulb (dehiscent bony covering)
  • cholesteatoma
  • rhabdomyosarcoma (orbit > nasopharynx > ear)
  • adenocarcinoma (rare)


Yong H. Hahn, MD  -  2 February 1995
Last updated:  1 October 2013


 

Related CHORUS documents:
glomus tympanicum
paraganglioma (glomus tumor)
glomus jugulare
rhabdomyosarcoma
progeria (Hutchinson-Gilford) syndrome
sarcoma botryoides

 

Copyright © 2013, Charles E. Kahn, Jr.