PMC10017209_01
MRI of pituitary microadenoma consistent with Cushing's disease. Coronal T1-weighted enhanced MRI of the pituitary gland shows an anterior inferior pituitary lesion to the right of midline measuring approximately 6 x 6 x 3 mm.
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ACTH level was also increased to 119 pg/mL (normal: 6-50 pg/mL). An MRI of the sella turcica was ordered and showed a 6 x 6 x 3 mm pituitary microadenoma concerning for an ACTH-secreting tumor (Figure 1), resulting in a diagnosis of Cushing's disease.