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Proptosis patient (axial CT)

In this axial CT, orbital mass has the appearance of an intraconal tumor. Note the homogeneous appearance of the intraconal tumor and its characteristic molding to the space it occupies. It molds at the globe instead of indenting it, and it molds along the posterior lateral orbital wall without expanding the orbital space, resulting in bony erosion. It extends to the inferior orbital fissure posteriorly. (Contributed by Dr. Mark Duffy.)

Associated Disorders

  • Cavernous sinus thrombosis
  • Euthyroidism
  • Extraocular muscle enlargement
  • Generalized autoimmune diseases
  • Graves ophthalmopathy
  • Hashimoto thyroiditis
  • Hypothyroidism
  • Open angle glaucoma
  • Orbital pseudotumor
  • Rhabdomyosarcoma
  • Sarcoidosis
  • Secondary glaucoma
  • Thyroid-associated ophthalmopathy