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At least 145 records · Page 8Linked to original sources
PubMed1993

Macrosomia, obesity, macrocephaly and ocular abnormalities (MOMO syndrome) in two unrelated patients: delineation of a newly recognized overgrowth syndrome.

We describe 2 unrelated patients, a boy and a girl, with an overgrowth syndrome and the following common characteristics: macrocrania, obesity, ocular abnormalities (retinal coloboma and nystagmus), downward slant of palpebral fissures, mental retardation, and delayed bone maturation. Both cases are of sporadic occurrence with no consanguinity between the parents. We suggest that this syndrome is due to a new autosomal dominant mutation and propose to designate it with the acronym of "MOMO syndrome" (Macrosomia, Obesity, Macrocrania, Ocular anomalities.

Abnormalities, Multiple↗
PubMed1995

Nonspecific X-linked mental retardation with macrocephaly and obesity: a further family.

The phenotypic nonspecificity of many forms of X-linked mental retardation has hampered attempts to classify them into clinically homogeneous groups. One such condition, described by Clark and Baraitser [1987: Am J Med Genet 26:13-15], has been the subject of a single pedigree report to date. We now describe a further pedigree whose affected members share many manifestations with those reported by Clark and Baraitser, and we consider the possible distinction between this condition and Atkin-Flaitz syndrome.

Brain↗
PubMed1996

Mental retardation plus macrocephaly in a 16-year-old boy.

The evaluation of mental retardation is a frequent and challenging problem in pediatric neurology. Often clues obtained on history or by physical examination will help to direct the evaluation in the appropriate channel. This 16-year-old boy had clinical features which suggested the appropriate diagnostic studies.

Adolescent↗
PubMed2002

Prenatal viral infection leads to pyramidal cell atrophy and macrocephaly in adulthood: implications for genesis of autism and schizophrenia.

We investigated the role of maternal exposure to human influenza virus (H1N1) in C57BL/6 mice on Day 9 of pregnancy on pyramidal and nonpyramidal cell density, pyramidal nuclear area, and overall brain size in Day 0 neonates and 14-week-old progeny and compared them to sham-infected cohorts. Pyramidal cell density increased significantly (p < 0.0038) by 170% in Day 0 infected mice vs. controls. Nonpyramidal cell density decreased by 33% in Day 0 infected progeny vs. controls albeit, nonsignificantly. Pyramidal cell nuclear size decreased significantly (p < 0.0465) by 29% in exposed newborn mice vs. controls. Fourteen-week-old exposed mice continued to show significant increases in both pyramidal and nonpyramidal cell density values vs. controls respectively (p < 0.0085 E1 (exposed group 1), p < 0.0279 E2 (exposed group 2) pyramidal cell density; p < 0.0092 E1, p < 0.0252 E2, nonpyramidal cell density). By the same token, pyramidal cell nuclear size exhibited 37-43% reductions when compared to control values; these were statistically significant vs. controls (p < 0.04 E1, p < 0.0259 E2). Brain and ventricular area measurements in adult exposed mice also showed significant increases and decreases respectively vs. controls. Ventricular brain ratios exhibited 38-50% decreases in exposed mice vs. controls. While the rate of pyramidal cell proliferation per unit area decreased from birth to adulthood in both control and exposed groups, nonpyramidal cell growth rate increased only in the exposed adult mice. These data show for the first time that prenatal exposure of pregnant mice on Day 9 of pregnancy to a sublethal intranasal administration of influenza virus has both short-term and long-lasting deleterious effects on developing brain structure in the progeny as evident by altered pyramidal and nonpyramidal cell density values; atrophy of pyramidal cells despite normal cell proliferation rate and final enlargement of brain. Moreover, abnormal corticogenesis is associated with development of abnormal behavior in the exposed adult mice.

Aging↗
PubMed1981

[A syndrome of osteogenesis imperfecta, macrocephaly, wormian bones, frontal bossing, brachytelephalangy, hyperextensible joints, congenital blindness and oligophrenia in 3 sibs (author's transl)].

A familial syndrome is described in three siblings. The disease is characterized by osteoporosis, macrocephalus with wormian bones and frontal bossing, brachytelephalangy, hyperextensibility of the joints, congenital amaurosis and low grade oligophrenia. Clinically similar syndromes as Osteogenesis Imperfecta, Amaurosis Congenita Leber or the Osteoporosis-Pseudoglioma-Syndrome are discussed. The condition is thought to be an independent disease.

Adolescent↗
PubMed1988

X-linked recessive aqueductal stenosis without macrocephaly.

A normocephalic, severely retarded boy with a family history suggesting aqueductal stenosis was found by computerized tomography to have aqueductal stenosis. His parents' concurrent pregnancy was monitored by ultrasonography and amniocentesis; these disclosed a male fetus which developed marked hydrocephalus after the 20th week. The pregnancy was terminated and an autopsy of the fetus demonstrated several major CNS malformations in addition to a very narrowed aqueduct. This case illustrates the diffuse CNS disease present in at least some cases of X-linked aqueductal stenosis (XLAS) and the importance of considering this variable syndrome in normocephalic, non-dysmorphic mentally retarded males. Important aspects of the prenatal diagnosis of XLAS are also illustrated.

Cerebral Aqueduct↗