The symptoms due to a<unk>  are broadly divided into those that are caused by increased prolactin levels or mass effect. Those that are caused by increased prolactin levels are: * Amenorrhea (disappearance of ovulation periods) * Galactorrhea (Milk production; infrequent in men) * Loss of axillary and pubic hair * Hypogonadism (Reduced function of the gonads.) * Gynecomastia (an increase in male breast size) * Erectile dysfunction (in males) Those that are caused by mass effect are: * Headaches * Vision Changes-visual field deficits, blurred vision, decreased visual acuity * Cranial nerve palsies-especially with invasive tumors or with pituitary apoplexy * Seizures, Hydrocephalus, Unilateral exophthalmos are rare presentations * Pituitary apoplexy is a medical emergency because of spontaneous hemorrhage into the pituitary tumor and presents with severe headaches, vision changes, and panhypopituitarism.
Prolactinoma
Hyperprolactinemic SAHA syndrome
Pituitary adenoma
Leydig cell tumour
Gonadotropin-resistant ovary syndrome
Granulosa cell tumour
Sertoli cell tumour
Gonadoblastoma