IPLab:Lab 7:Adenoma

Images

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  This is a low-power photomicrograph of a nodule found in the thyroid of this case. Note that the mass is well-circumscribed and there is a sharp line of demarcation between the mass and the adjacent thyroid tissue (arrows).

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  This is a higher-power view of the border between the tumor mass and the adjacent thyroid tissue. Note that the mass has compressed the adjacent normal thyroid tissue (arrow). Also note the different morphology between the adenoma (very cellular, dense follicles, little or no colloid) and the adjacent normal thyroid (larger follicles, colloid).

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  This is another higher-power photomicrograph of the adenoma (left) and the adjacent thyroid tissue (right). Note the compression of the adjacent normal thyroid and the difference in morphology between the adenoma and the thyroid.

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  This photomicrograph demonstrates the densely packed follicular pattern in the adenoma (left) and the larger colloid-filled follicles of the normal thyroid (right). An area of compressed thyroid is present adjacent to the adenoma (arrows).

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  This is a photomicrograph of an adenoma. Note that the follicular architecture is well developed and more or less uniform throughout this section.

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  This high-power photomicrograph demonstrates the relatively normal cellular morphology of this follicular adenoma.