Hyperpituitarism Flashcards
Over secretion of one or more of the hormones secreted by the pituitary gland caused by a secreting pituitary tumor, typically benign adenoma
Hyperpituitarism
3 Types of Pituitary Tumors
Eosinophilic Tumor
Basophilic Tumor
Chromophobic Tumor
3 Types of Pituitary Tumors
Enlargement involves all tissues and organs (gigantism)
Many of these patients suffer from headaches and visual disturbances because the tumors exert pressure on the optic nerves
Eosinophilic Tumor
3 Types of Pituitary Tumors
Give rise to Cushing’s syndrome with features largely attributable to hyperadrenalism, including masculinization and amenorrhea in females, truncal obesity, hypertension, osteoporosis, and polycythemia
Basophilic Tumor
3 Types of Pituitary Tumors
Represent 90% of pituitary tumors
Produce no hormones but destroy the pituitary gland causing hypopituitarism
Chromophobic Tumor
3 Types of Pituitary Tumors
Patient with this disease are often obese and somnolent and exhibit fine, scanty hair, dry, soft skin, a pasty complexion and small bones
Chromophobic Tumor
3 Types of Pituitary Tumors
They also experience headache, loss of libido, and visual defects progressing to blindness
Chromophobic Tumor
3 Types of Pituitary Tumors
Other signs and symptoms:
Polyuria
Polyphagia
Lowering of the basal metabolic rate
Subnormal body temperature
Chromophobic Tumor
An overgrowth of the long bones, develops in children before the age at which the epiphyses of the bones close
Individual suffering from this may grow as tall as 8 or 9 feet
Gigantism
A disease of adult that develops following closure of the epiphyses of the long bones
Marked by both increases in bone thickness and hypertrophy of the soft tissues
Acromegaly
3 Types of Pituitary Tumors
Headache and visual disturbances because the tumors exert pressure on the optic nerves
Eosinophilic Tumor
3 Types of Pituitary Tumors
- Obese and somnolent
- Exhibit fine, scanty hair
- Dry soft skin
- Pasty complexion and small bones
- Headache
- Loss of libido
- Visual defects progressing to blindness
- Polyuria
- Polyphagia
- Lowering of the basal metabolic rate
- Subnormal body temperature
Chromophobic Tumor
