pituitary dwarf

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Related to pituitary dwarf: acromelic


an abnormally undersized person; see also dwarfism. adj., adj dwar´�fish.
hypophysial dwarf pituitary dwarf.
hypothyroid dwarf a dwarf with hypothyroidism or cretinism. See dwarfism.
infantile dwarf a dwarf with infantilism.
normal dwarf an individual who is undersized but perfectly formed.
pituitary dwarf a person with pituitary dwarfism; called also hypophyseal dwarf.
renal dwarf a person with renal dwarfism.

hy·po·phy·si·al dwarf

dwarfism as result of failure of growth hormone production because of hypothalamic or pituitary abnormality.
Synonym(s): pituitary dwarf

pituitary dwarf

Etymology: L, pituita, phlegm; AS, dweorge
a dwarf whose retarded development is caused by a deficiency of growth hormone resulting from hypofunction of the anterior lobe of the pituitary. In most cases the cause is unknown and the defect is limited to a lack of somatotropin, although in some instances gonadotropins, adrenocorticotropic hormone, and thyroid stimulating hormone also may be deficient. The body is properly proportioned, with no facial or skeletal deformities, and mental and sexual development is normal. The condition is usually diagnosed in childhood by radiographic examination of the bones and radioimmunoassay of levels of plasma growth hormone. Also called hypophyseal dwarf, Lévi-Lorain dwarf, Paltauf's dwarf.


A person of abnormally short stature and esp. of abnormal proportions. See: achondroplasia; cretinism See: micromelusdwarfism (dwarf'izm)

achondroplastic dwarf

See: achondroplasia

asexual dwarf

A dwarf who has deficient sexual development or has not developed to sexual maturity.

hypophyseal dwarf

A dwarf whose condition resulted from hypofunction of the anterior lobe of the hypophysis. Synonym: pituitary dwarf

hypopituitary dwarf

A dwarf whose short stature results from insufficient production of growth hormone.

infantile dwarf

A dwarf with marked physical, mental, and sexual underdevelopment.

Laron dwarf

A dwarf whose short stature results from an insensitivity or resistance to growth hormone.

ovarian dwarf

A woman who is undersized due to absence or underdevelopment of the ovaries.

phocomelic dwarf

A dwarf with abnormally short diaphyses of either pair of extremities or of all four.

physiological dwarf

A person normally developed except for unusually short stature.

pituitary dwarf

Hypophyseal dwarf.

primordial dwarf

A dwarf who has a selective deficiency of growth hormone but otherwise normal endocrine function.

rachitic dwarf

A dwarf whose condition is due to rickets.

renal dwarf

A dwarf whose condition is due to renal osteodystrophy.

thanatophoric dwarf

See: thanatophoric dysplasia