American Association for Cancer Research

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Table 1

Classification of NF adenomas by cell of origin

Cell type	Hormone expression	% of NF tumors
Null cell	None	17%
Oncocytoma	None	6%
Silent corticotroph	ACTH	8%
Silent somatotroph	GH	3%
Gonadotrophs	Intact LH/FSH or subunits	40–79%

Cell type	Hormone expression	% of NF tumors
Null cell	None	17%
Oncocytoma	None	6%
Silent corticotroph	ACTH	8%
Silent somatotroph	GH	3%
Gonadotrophs	Intact LH/FSH or subunits	40–79%