FA Leydig cell tumor

[agranulocytosis]

page 452 2008, Leydig cell tumors produce gynecomastia in men. What say you guys?

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[boardssuck]

i think the excess androgens get aromatized

 

[osli]

Leydig cell tumors can be stimulated (perhaps even started) by excess estrogen and/or LH (usually from HPA dysfunction), so there may be an association there in some cases even though cause/effect is reversed.

Additionally, even though most produce testosterone some can intrinsically produce progesterone and/or estradiol. Finally, increases in estrogen can occur from peripheral aromatization of the excess testosterone in obese individuals, though I would think that is the least likely scenario to produce new gynecomastia observed in combination with the tumor's appearance.

 

[agranulocytosis]

awesome, nice answers guys!