A Pars Intermedia Macroadenoma Supporting the Origin of Silent Corticotroph Adenomas

Introduction: Silent corticotroph adenomas (SCAs) are the only pituitary adenomas thought to originate from the pars intermedia. This case report presents a novel/rare magnetic resonance imaging (MRI) finding demonstrating displacement of the anterior and posterior pituitary glands by a multimicrocystic corticotroph macroadenoma, supporting the hypothesis that silent corticotroph adenomas originate from the pars intermedia and should be considered in the differential diagnosis for pars intermedia lesions.