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Pituitary Microadenoma

Discussion in 'Ask Jack' started by TheKid, Mar 6, 2014.

  1. TheKid

    TheKid Gold

    For Jack Only

    Jack,

    What is the difference between just a regular adenoma and a microadenoma? I have one (5x5 mm) in the right pituitary gland lobe and it is causing bulging of the superior pituitary gland surface.

    They call it a " low signal intensity lesion."

    Is that different from a high signal intensity lesion?
     
  2. Jack Kruse

    Jack Kruse Administrator

    Size anything over 1 cM is considered large. Size is the main parameter because the real risk of these tumors is suprasellar extension to cause visual loss. The signal intensity tells you about biologic activity of the proton spin in these lesions. Low signal is a sign it is not a metabolically active tumor is likely to be a null cell tumor.
     

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