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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «D»:

  1. Dysplasia, arteriohepatic Dysplasia, arteriohepatic
    Dysplasia, arteriohepatic: 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...
  2. Dysplasia, bronchopulmonary Dysplasia, bronchopulmonary
    Dysplasia, bronchopulmonary: See: Bronchopulmonary dysplasia....
  3. Dysplasia, cleidocranial Dysplasia, cleidocranial
    Dysplasia, cleidocranial: 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...
  4. Dysplasia, congenital hip 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...
  5. Dysplasia, faciodigitogenital Dysplasia, faciodigitogenital
    Dysplasia, faciodigitogenital: See: Aarskog-Scott syndrome....
  6. Dysplasia, faciogenital Dysplasia, faciogenital
    Dysplasia, faciogenital: See: Aarskog-Scott syndrome....
  7. Dysplasia, thanatophoric Dysplasia, thanatophoric
    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...
  8. Dysplastic nevi Dysplastic nevi
    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....
  9. Dysplastic nevus Dysplastic nevus
    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....
  10. Dyspnea Dyspnea
    Dyspnea: Difficult or labored breathing; shortness of breath. 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...
  11. Dyspnoea Dyspnoea
    Dyspnoea: Difficult or labored breathing; shortness of breath. 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...
  12. Dyspraxia Dyspraxia
    Dyspraxia: Impaired or painful function of any organ of the body....
  13. Dyspraxia of speech 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...
  14. Dyspraxia, developmental Dyspraxia, developmental
    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, par...
  15. Dysthymia Dysthymia
    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...