Sellar and Parasellar Lesions Mimicking Adenoma

  • Kalmon D. Post
  • David L. Kasdon


Many parasellar lesions, tumor and nontumor, may mimic pituitary adenomas clinically, endocrinologically, and radiologically (Table 1). From a review of the Mayo Clinic parasellar lesions series, Thomas and Yoss1 concluded that the etiological diagnosis of parasellar lesions is not made on clinical grounds, but rather on adjunctive examinations such as blood tests, plain skull X-rays, tomograms, and contrast studies. However, certain clinical patterns do, at times, lead suspicion toward the correct diagnosis, while at other times, even with appropriate tests, the diagnosis may be difficult. For most of these lesions, the treatment of choice is distinctly different from that of a pituitary tumor, and therefore correct diagnosis is of paramount importance. After a brief general discussion of the presenting symptoms and signs of tumors in this region, as well as the radiological manifestations, some specific discussion and examples of these entities will be presented.


Optic Nerve Pituitary Adenoma Diabetes Insipidus Arachnoid Cyst Sphenoid Sinus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Publishing Corporation 1980

Authors and Affiliations

  • Kalmon D. Post
    • 1
    • 2
  • David L. Kasdon
    • 1
    • 2
  1. 1.Tufts University School of MedicineBostonUSA
  2. 2.Department of NeurosurgeryTufts-New England Medical Center HospitalBostonUSA

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