Pituitary adenomas are best classified according to functional hormone output. This information may be derived from which of the following?
A. Hematoxylin and eosin staining
B. Immunohistochemical staining of pituitary tissue
C. In situ hybridization studies
D. Selective venous sampling from the inferior petrosal sinuses
Answer:B
Pituitary adenomas are best classified according to functional hormone output. This information may be derived from which of the following?
A. Hematoxylin and eosin staining B. Immunohistochemical staining of pituitary tissue C. In situ hybridization studies D. Selective venous sampling from the inferior petrosal sinuses