Sellar / Pituitary Mass - Differential Diagnosis Algorithm

Adenoma - Primary Anterior Pituitary

 - Secreting

     • Prolactin

     • GH

     • ACTH

     • TSH

     • LH/FSH

     • Mixed

 - Non-Functioning

     • Oncocytoma

     • Null Cell Adenoma

Non-Adenomatous

 - Vascular

     • Aneurysm

     • Infarction

 - Hamartoma

 - Neoplasm

     • Craniopharyngioma

     • Meningioma

     • Cyst

     • Glioma

     • Ependymoma

 - Metastatic

Hyperplasia

 • Physiological (e.g. Pregnancy)

 • Compensation (e.g. Hypothyroidism)

 • Stimulatory (e.g. Ectopic GNRH, CRH)

Inflammatory

 • Infectious

 • Autoimmune

 • Giant Cell Granuloma

 • Langerhan's Cell

 • Histiocytosis

 • Sarcoidosis



#SellarMass #Pituitary #Differential #Diagnosis #Algorithm #endocrinology #causes