Scleral thickening: a CT sign of orbital pseudotumor

AJR Am J Roentgenol. 1977 Oct;129(4):703-6. doi: 10.2214/ajr.129.4.703.


Orbital pseudotumor is a benign inflammatory lesion of the orbit. Computed tomography is a new method for evaluation of orbits. Scleral uveal rim thickening with contrast enhancement was found in eight of 15 patients with pseudotumor (53%). Similar rim thickening was seen in one postoperative patient and two cases of recent trauma. Therefore, the sign presumably represents inflammation. It was not seen in 47 cases of thyroid disease and 66 cases of neoplasm.

MeSH terms

  • Bone Diseases / diagnostic imaging
  • Diagnosis, Differential
  • Eye Diseases / diagnostic imaging
  • Graves Disease / diagnostic imaging
  • Humans
  • Orbital Neoplasms / diagnostic imaging*
  • Sclera / diagnostic imaging*
  • Tomography, X-Ray Computed*