Adrenal Tumors

Pierre Amsellem, Michael Schaer, James P. Farese

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations


The majority of adrenocortical tumors are functional, with clinical signs reflecting the type of hormone being produced by the neoplasm. The differential diagnosis includes adrenocortical adenoma, adrenocortical adenocarcinoma, pheochromocytoma, aldosteronoma, and various combinations of coexisting disorders. The endocrinologic evaluation of an adrenocortical mass can be confusing because of the wide variations in test results that can occur. The most commonly used tests include the adrenocorticotropic hormone (ACTH) stimulation test, the low-dose dexamethasone suppression (LDDS) test, and the high-dose dexamethasone suppression (HDDS) test. Abdominal ultrasonography is a valuable aid for diagnosing adrenal gland tumors. The use of Computed tomography (CT) has greatly facilitated the detection of adrenal tumors. Macroscopic vascular invasion due to a tumor thrombus or a blood thrombus has been reported in approximately 25% of reviewed cases and may occur in 10-20% of canine adrenocortical tumors and 30-50% of dogs with pheochromocytomas.

Original languageEnglish (US)
Title of host publicationSmall Animal Soft Tissue Surgery
PublisherWiley Blackwell
Number of pages16
ISBN (Electronic)9781118997505
ISBN (Print)9780813807829
StatePublished - Jan 4 2013
Externally publishedYes


  • Abdominal ultrasonography
  • Adrenal tumors
  • Adrenocortical adenocarcinoma
  • Adrenocortical adenoma
  • Adrenocorticotropic hormone (ACTH)
  • Aldosteronoma
  • Computed tomography (CT)
  • Pheochromocytoma
  • Vascular invasion


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