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PubMed1975

Variable expression of Marfan syndrome in monozygotic twins.

A pair of monzygotic twins with the Marfan syndrome with variable expression is presented. One of the twins, in addition to more severe musculoskeletal and ocular manifestations, had coarctation of the aorta as the cardiovascular manifestation of this symdrome. Analysis of red cell antigens, serum proteins and dermatoglyphic examination suggests a high probability of monozygosity. Accordingly, the variation in expression of this autosomal dominant disorder between the twins is most likely due to the modifying influences of environmental factors. Also noteworthy is the fact that the resected coarctation tissue demonstrated the histopathologic changes characteristic of cystic medial necrosis, and thus served as an additional piece of evidence supporting the diagnosis of the Marfan syndrome. This was of particular importance in view of the absence of any family history of this syndrome and the absence of ectopia lentis or the more typical cardiovascular manifestations in either twin.

Adolescent↗
PubMed1976

A comparison of the dermatogram with other indices for the diagnosis of Down's syndrome.

The Dermatogram, a dermatoglyphic nomogram based upon four pattern areas, was compared with three other indices for the diagnosis of Down's syndrome (D.S.). The measure of diagnostic accuracy used was the percentage of patients scoring outside reported overlap scores between normal and D.S. The Dermatogram correctly diagnosed 79% of 119 D.S. patients. Two other indices, using more pattern areas and requiring calculations, correctly diagnosed more patients (81 and 87%), but one had several incorrect diagnoses and the other was less efficient when scored on a small sample of normal, karyotyped, non-D.S. retardates. The Dermatogram is suggested for use as a rapid diagnostic screen. For patients in the Dermatogram overlap, added discrimination may be obtained from secondary scoring on other indices.

Dermatoglyphics↗
PubMed1976

A screening test for patients suspected of having Turner syndrome.

An index has been devised using dermatoglyphics and selected physical traits to screen for patients suspected of having Turner syndrome. About 60% of females with and without Turner syndrome can be diagnosed as having or not having the syndrome with a 98% or greater probability. The patient's score on the index, expressed in probability, can be used to decide whether chromosome studies should be done. Using the approach demonstrated in this pilot study, the discriminative power can be increased by adding more features and by enlarging the sample to permit division of features into more discriminating classes.

Adolescent↗
PubMed1976

Hypertrichosis lanuginosa in a mother and son.

Hypertrichosis lanuginosa (without gingival hyperplasia) is described in a mother and son; the latter also had photophobia, infantile genitalia, growth retardation, hypotension, low IQ and dental abnormalities (hyperdontia, permanence of deciduous and delayed eruption of permanent teeth). Both have normal dermatoglyphics. Some clinical findings are discussed. The presence of this syndrome in a mother and son supports an autosomal mode of inheritance (with variable expressivity). Hypertrichosis lanuginosa is a pure monomultidysplasia and may be classified with the tricho-odontic sub-group of the ectodermal dysplasias.

Abnormalities, Multiple↗
PubMed1976

Familial partial trisomy 6q syndromes resulting from inherited ins (5;6) (q33;q15q27).

Two cases are reported of familial partial trisomy 6q syndrome due to segregation of ins(5;6) (q33;q15q27) in three generations. The common clinical features include growth and mental retardation, feeding difficulty during infancy, microcephaly with downward slanting palpebral fissures, flattened nasal bridge with anteverted and flared nares, long philtrum, high arched palate, partially opened and protruding mouth with receding chin, deep transverse creases of the ears, three creases on the 4th fingers, clinodactyly of the 5th fingers with a single crease, and other dermatoglyphic findings. These characteristic features of two patients appear to make partial trisomy 6q a clinically recognizable syndrome.

Abnormalities, Multiple↗
PubMed1977

A family with syndactyly type II (synpolydactyly).

Syndactyly Type II is reported in eight members of a family in four generations. Affected individuals show two distinctive patterns of variation in the expression of the gene. Distortion of dermatoglyphic patterns is associated with the severe but not the mild manifestation of the malformation. The diagnostic significance of minimal features of the condition is discussed. Linkage data suggest that loci for Syndactyly II and for blood-group antigens ABO, MNSs, P, Rh and Kell are not closely linked.

Adult↗
PubMed1977

Aglossia-adactylia syndrome (special emphasis on the inheritance pattern).

Three cases, one with aglossia-adactylia and two with aglossia, are presented, all of whom were born to consanguineous families. Although none of the cases had similarly affected sibs, the possibility of the autosomal recessive mode of inheritance might be taken into account in this syndrome. The dermatoglyphic findings in one previously reported patient showed great similarity to those of one of our cases.

Abnormalities, Multiple↗
PubMed1978

Trisomy 12p syndrome. Evaluation of a family with a t(12;21) (p12.1;p11) translocation with unbalanced offspring.

Two brothers (Nos. 1 and 3), with physical and mental retardation and many other clinical characteristics in common, were both trisomic for 12p(ter leads to 12.1) and monosomic for 21p. Their mother (No. 5), the maternal grandmother (No. 7), aunt (No. 8), and a first-cousin (No. 9) were balanced translocation carriers, 46 rep (12;21) (p12.1;p11). Another cousin (No. 10) had Down syndrome: he had two normal 21 chromosomes in addition to both translocation chromosomes. A sister (No. 2), who died at the age of 1 year without being karyotyped, had several phenotypical features in common with her brothers. Our two cases of trisomy 12p (ter leads to 12.1) were compared with eight cases of trisomy 12p described earlier, and the following common characteristics were found: severe mental and physical retardation; flat and round, broad face with prominent cheeks; flat and broad nasal bridge with short nose; anteverted nostrils and large philtrum; broad and prominent lower lip; low-set or slanting ears, poorly formed with folded helix, prominent antihelix and deep concha; short neck; short sternum; "spade"-shaped fingers, the fifth being short; bilateral genu valgum; bilateral pes planus and talus valgus; increased space between the first and second toes; generalized hypotonia; and certain dermatoglyphic characteristics. An elevated serum lactate dehydrogenase (LDH) was measured in four cases.

Abnormalities, Multiple↗
PubMed1978

Partial trisomy 15 and temporal lobe syndrome in a retarded girl without gross malformations.

A supernumerary small bisatellited chromosome was found in a girl with stunted growth and psychomotor retardation. The extra chromosome was identified as a deleted 15, del(15)(q21), with C-band positive heterochromatin and satellite-like appendages to the distal end of the long arm. This chromosome was the product of a translocation between a chromosome 15 and some other acrocentric chromosome, as shown by G-, C- and Q-banding and silver staining of the nucleolus organizer regions. The proposita had no gross phenotypic malformations. She had a small head, a high forehead, oblique palpebral fissures, bilateral enophthalmus, clinodactyly and simple dermatoglyphic patterns. She was autistic and suffered from epileptic seizures and expressive aphasia. The waking electroencephalogram revealed diffuse abnormalities; sleep recording showed focal spikes and sharp waves anteriorly on the left side. The pneumo-encephalogram showed microventriculy, an enlarged left temporal horn and some enlarged sulci in the right frontotemporal cortex. The prenatal influence of the chromosome anomaly is interpreted as being the primary cause of these disorders, neonatal asphyxia being a secondary contributing factor.

Abnormalities, Multiple↗
PubMed1978

Two cases of an abnormal short arm of chromosome 8 (8p+) associated with mental retardation.

Morphologically similar chromosome anomalies, 8p+, were found in two inmates of an institution for the mentally retarded. Analysis of the G-and R-banding patterns showed that the first subject had a duplication of region p2 of chromosome 8; the second subject had an insertion of an unidentified chromosome segment at 8p11. Both subjects were severely mentally retarded. The physical malformations were more severe in the second subject than in the first, who had only minor signs. The dermatoglyphics are recorded.

Abnormalities, Multiple↗
PubMed1979

The Aarskog (facio-digito-genital) syndrome.

A kindred with the Aarskog Syndrome (facio-digito-genital syndrome) is presented. The favorable outcome of this syndrome in terms of final height, intelligence and life expectancy is emphasized. It is pointed out that cleft lip and cleft pastic dermatoglyphic pattern includes simian creases and distal axial tiriradii. The pedigree analysis from 14 known kindreds strongly suggests an X-linked recessive mode of inheritance. It is noteworthy that the female carriers frequently showed varying and milder expression of the syndrome, especially in their facies and hands.

Abnormalities, Multiple↗
PubMed1980

Occurrence of sex chromosome mosaicism and translocation Down's syndrome in the same family.

The proband in this family has translocation Down's Syndrome 46,XX,t(14;21)(p11;q11), and this translocation was present in other family members. Sex chromosome mosaicism was demonstrated in three generations of the family, providing another example of familial mosaicism. There was also excessive foetal wastage in different family members. It was not possible to assign the common aetiological factor to account for these various abnormalities. Dermatoglyphic studies showed dominant inheritance of finger-tip arch patterns in one branch of the family.

Child↗
PubMed1982

Interstitial de novo deletion of the long arm of chromosome 5: mapping of 5q bands associated with particular malformations.

A new case of interstitial deletion of the long arm of one chromosome No. 5 (q13 leads to q22) is described. The girl shows mental retardation, severe hypotonia, dysmorphic facies and peculiar dermatoglyphics. The relationship between partial trisomies and partial monosomies of 5q chromosomal segments and associated clinical features is discussed. It seems possible to draw a rough phenotypic map of the long arm of chromosome 5 (5q), correlating observed malformations and phenotypic features with specific chromosomal regions.

Abnormalities, Multiple↗
PubMed1984

A Weaver-like syndrome in a Japanese boy.

A 5 1/2-year-old Japanese boy with a Weaver-like syndrome is reported. In addition to pre- and post-natal overgrowth, mental retardation, an unusual craniofacial appearance and other abnormalities characteristic of the Weaver syndrome, he had several clinical features not described in this syndrome. These unusual features included mongoloid slanting of the palpebral fissures, cleft lip, accessory nipples, pectus excavatum, a bifid xyphoid process, irregularly shaped vertebral bodies, inflexible right thumb, clinodactyly of the fifth fingers, abnormal dermatoglyphic patterns and deep plantar furrows. His carpal bone age corresponded to his chronological age, while the tubular bone age was accelerated.

Abnormalities, Multiple↗
PubMed1989

An interstitial deletion of the long arm of chromosome 13.

A case of an interstitial deletion of chromosome 13, identified as 46,XY,del(13)(q22q31), is reported in a child with psychomotor retardation, prominent low-set ears, epicanthus, hypertelorism, broad nasal bridge, hypoplastic fifth fingers and abnormal dermatoglyphics. This patient is compared to others in the literature with a similar deletion.

Child, Preschool↗
PubMed1989

The de Lange syndrome. Report of 15 cases.

Fifteen cases of the de Lange syndrome are presented. Personal and family histories, clinical features, detailed radiological findings, laboratory data, chromosome studies and dermatoglyphic patterns are reported. A Negro patient and his autopsy findings are described. Radiological diagnostic features are stressed; in particular, the combined presence of a hypoplastic middle phalanx of the index fingers and variable short metatarsal appear to be two additional features which are diagnostically helpful. The etiology of the syndrome is unknown; however, there is some evidence to suggest a genetic basis. The literature is briefly reviewed.

Adult↗
PubMed1977

Absence of triradius d on the palms of normal people.

Absence of the digital triradius d is a very rare phenomenon, previously only reported in abnormal XXXXY males. During the past few years the anomaly has been found on the palms of three normal females, namely a young English woman and two sisters in the Nicobar Islands in the Indian Ocean. These cases are described and illustrations of the palmar dermatoglyphics presented. The occurrence of such a rare phenomenon in two sisters suggests that it is genetically determined.

Adolescent↗