PMC3041999_01
T1 post-contrast axial MRI shows a tumor within the sella displacing the pituitary gland and infundibulum.
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F1
An MRI of the orbits and brain (Figures 1, 2) revealed a 1.5 x 1.9 x 1.4 cm mass within the sella, displacing the pituitary gland and infundibulum towards the right and impinging on the left cavernous sinus.
T1 post-contrast coronal MRI shows a mass impressing on the left cavernous sinus.
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F2
An MRI of the orbits and brain (Figures 1, 2) revealed a 1.5 x 1.9 x 1.4 cm mass within the sella, displacing the pituitary gland and infundibulum towards the right and impinging on the left cavernous sinus.
Histopathology revealed pituitary adenoma composed of monomorphous cells with amphophilic cytoplasm (hematoxylin and eosin, X20).
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F3
Pathologic examination of the mass (Figures 3, 4, 5) demonstrated a 1.5 x 1.0 x 0.3 cm pituitary adenoma positive for ACTH immunostain.
Reticulin special stain demonstrates loss of the usual acinar pattern supporting the diagnosis of pituitary adenoma (hematoxylin and eosin, X20).
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F4
Pathologic examination of the mass (Figures 3, 4, 5) demonstrated a 1.5 x 1.0 x 0.3 cm pituitary adenoma positive for ACTH immunostain.
The tumor is diffusely positive for ACTH immunostain (hematoxylin and eosin, X20).
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F5
Pathologic examination of the mass (Figures 3, 4, 5) demonstrated a 1.5 x 1.0 x 0.3 cm pituitary adenoma positive for ACTH immunostain.