| pseudo-Hurler disease | infantile, generalised GM1 gangliosidosis |
|---|---|
| pseudo-Hurler polydystrophy | <biochemistry> Mucolipidosis with mild Hurler-like symptoms, restricted joint mobility, short stature, mild mental retardation, and dysplastic skeletal changes, especially of the hip. Aortic and mitral valve disease are often present. It is associated with a deficiency of UDP-N-acetyl glucosamine and lysosomal enzyme N-acetylglucosaminyl-1-phosphotransferase. Inheritance: autosomal recessive. Synonym: pseudo-Hurler polydystrophy, pseudopolydystrophy. (05 Mar 2000) |
| Hurler's disease | <syndrome> Mucopolysaccharidosis in which there is a deficiency of alpha-l-iduronidase, an accumulation of an abnormal intracellular material, and excretion of dermatan sulfate and heparan sulfate in the urine; with severe abnormality in development of skeletal cartilage and bone, with dwarfism, kyphosis, deformed limbs, limitation of joint motion, spadelike hand, corneal clouding, hepatosplenomegaly, mental retardation, and gargoyle-like facies; autosomal recessive inheritance. See: mucolipidosis. Synonym: dysostosis multiplex, Hurler's disease, lipochondrodystrophy, Pfaundler-Hurler syndrome, type IH mucopolysaccharidosis. (05 Mar 2000) |
| Pfaundler-Hurler syndrome | <syndrome> Mucopolysaccharidosis in which there is a deficiency of alpha-l-iduronidase, an accumulation of an abnormal intracellular material, and excretion of dermatan sulfate and heparan sulfate in the urine; with severe abnormality in development of skeletal cartilage and bone, with dwarfism, kyphosis, deformed limbs, limitation of joint motion, spadelike hand, corneal clouding, hepatosplenomegaly, mental retardation, and gargoyle-like facies; autosomal recessive inheritance. See: mucolipidosis. Synonym: dysostosis multiplex, Hurler's disease, lipochondrodystrophy, Pfaundler-Hurler syndrome, type IH mucopolysaccharidosis. (05 Mar 2000) |
| Hurler | Gertrud, Austrian paediatrician, 1889-1965. See: Hurler's disease, Hurler's syndrome, Pfaundler-Hurler syndrome. (05 Mar 2000) |
| Hurler-Scheie syndrome | <syndrome> Although clinically distinct diseases, fibroblasts from patients with Hurler syndrome and with Scheie syndrome do not cross complement in culture, suggesting that the enzyme defect is the same. (18 Nov 1997) |
| Hurler's syndrome | <syndrome> Mucopolysaccharidosis in which there is a deficiency of alpha-l-iduronidase, an accumulation of an abnormal intracellular material, and excretion of dermatan sulfate and heparan sulfate in the urine; with severe abnormality in development of skeletal cartilage and bone, with dwarfism, kyphosis, deformed limbs, limitation of joint motion, spadelike hand, corneal clouding, hepatosplenomegaly, mental retardation, and gargoyle-like facies; autosomal recessive inheritance. See: mucolipidosis. Synonym: dysostosis multiplex, Hurler's disease, lipochondrodystrophy, Pfaundler-Hurler syndrome, type IH mucopolysaccharidosis. (05 Mar 2000) |
| Hurler syndrome | <syndrome> A hereditary metabolic disorder, also designated mucopolysaccharidosis I, is caused by a recessive gene which results in a deficiency of the enzyme alpha-L-iduronidase, which breaks down dermatan sulphate and heparan sulphate, two types of mucopolysaccharides (complex carbohydrates). Consequently, the mucopolysaccharides accumulate in the cells of the body and cause damage. It is characterised by coarse facies, corneal clouding, skeletal dysplasia, hepatosplenomegaly, hernias, mental retardation and early death. There are mild and severe forms of the syndrome, the mild form is called Scheie Syndrome, the severe form is called Hurler syndrome, and children with an intermediate form have Hurler-Scheie syndrome. Patients with the severe form usually die from respiratory and cardiac failure before the age of ten. There is presently no cure. Hurler syndrome is one of a number of related rare genetic mucopolysaccharide disorders, the most common being Hunter syndrome. Diagnosis is possible by observing storage material in tissues, excretion of dermatan sulfate and heparan sulfate in urine, and deficient alpha-L-iduronidase activity in fibroblasts, amniocytes or other cell types. Missense and other mutations, one of which is relatively common, have been identified in the gene. Inheritance: autosomal recessive. (29 Dec 1997) |
| syndrome, hurler | A genetic error of metabolism. There is incomplete breakdown and accumulation of a substance (a mucopolysaccharide) which is abnormally stored in the brain and other places. This usually leads to death of the individual with hurler syndrome by their early teen years. See gargoylism. (12 Dec 1998) |
| aortic pseudo-coarctation | <radiology> Aortic kinking, rare congenital anomaly of aortic arch, long, redundant thoracic aorta, 3-sign, associated with aortic valve abnormalities (bicuspid valve, AI, AS), can develop aneurysms, no haemodynamic obstruction, no congenital heart disease Cf: coarctation (12 Dec 1998) |
| azygos pseudo-lobe | <radiology> Not a true lobe, does not have separate broncus or vasculature, due to invagination of azygos vein into RUL, no clinical significance (12 Dec 1998) |
| colonic pseudo-obstruction | Functional obstruction of the colon. (12 Dec 1998) |
| pseudo- | False (often used about a deceptive resemblance). Origin: G. Pseudes (05 Mar 2000) |
| pseudo-achalasia | <radiology> Carcinoma of distal oesophagus / GE junction, M more than F, onset 40-60 years of age, beak above hiatus, gastric cardiac mass, recommend biopsy! Differential diagnosis: achalasia (females, younger) (12 Dec 1998) |
| pseudo-ainhum | Nonspontaneous amputation of a digit, caused by a variety of disorders such as neural leprosy, syringomyelia, and palmoplantar keratoderma. (05 Mar 2000) |