Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «D»:
Also known as Alagille syndrome, this ia a genetic disorder characterized by jaundice in the newborn period, liver disease with cholestasis, peripheral pulmonic stenosis and unusual face. Children with Alagille syndrome usually present with jaundice (yellowing of the skin...
Dysplasia, bronchopulmonary: See: Bronchopulmonary dysplasia....
A genetic (inherited) disorder of bone development characterized by:
Absent or incompletely formed collar bones (the "cleido-" part refers to the clavicles, the collar bones) The child with this disorder can bring its shoulders together or nearly so; and
Typical cranial a...
Dysplasia, congenital hip
Dysplasia, congenital hip: The abnormal formation of the hip joint in which the ball at the top of the thighbone (the femoral head) is not stable within the socket (the acetabulum). The ligaments of the hip joint may also be loose and stretched.
The degree of instability or looseness varies. A bab...
Dysplasia, faciodigitogenital: See: Aarskog-Scott syndrome....
Dysplasia, faciogenital: See: Aarskog-Scott syndrome....
Dysplasia, thanatophoric: A form of short-limbed (micromelic) dwarfism that usually causes death within the first few hours after birth. Thanatophoric dysplasia is due to a lethal mutation (change) in the same gene that produces achondroplasia, a familiar and far more common form of short-limbed dw...
Dysplastic nevi: Atypical moles whose appearance is different from that of a common ordinary mole. Dysplastic nevi tend to be larger than ordinary moles, have more irregular borders, are often mixed in color and present in large numbers. A dysplastic nevus can give rise to malignant melanoma....
Dysplastic nevus: An atypical mole whose appearance is different from that of a common ordinary mole. Dysplastic nevi tend to be larger than ordinary moles, have more irregular borders, are often mixed in color and present in large numbers. A dysplastic nevus can give rise to malignant melanoma....
Dyspnea: Difficult or labored breathing; shortness of
Dyspnea is a sign of serious disease of the airway, lungs, or
heart. The onset of dyspnea should not be ignored but is reason to
seek medical attention.
The word dyspnea comes the Greek "dys-", difficulty + "pnoia",
breathing = diffi...
Dyspnoea: Difficult or labored breathing; shortness of
Dyspnoea is a sign of serious disease of the airway, lungs, or
heart. The onset of dyspnoea should not be ignored but is reason to
seek medical attention.
The word dyspnoea comes the Greek "dys-", difficulty + "pnoia",
breathing = d...
Dyspraxia: Impaired or painful function of any organ of the body....
Dyspraxia of speech
Dyspraxia of speech: A developmental disability
characterized by difficulty in muscle control, specifically
of the muscles involved in producing speech. It is caused
by a neurological difference that has not yet been
pinpointed. Treatment is via intensive speech therapy
concentrating on oral-mo...
Dyspraxia, developmental: A pattern of delayed,
uneven, or aberrant development of physical abilities during childhood development. The physical abilities affected may be gross or fine motor skills. Developmental dyspraxia may be seen
alone or in combination with other developmental problems,
Dysthymia: A type of depression involving long-term, chronic symptoms that are not disabling, but keep a person from functioning at "full
steam" or from feeling good. Dysthymia is a less severe type of depression than what is accorded the diagnosis of major depression. However, people with dysthymia...