B. Schaumann, M. Alter

Dermatoglyphics in Medical Disorders (eBook, PDF)

• Format: PDF

Produktbeschreibung

The skin on the fingertips and palmar and plantar surfaces of man is not smooth. It is grooved by curious ridges, which form a variety of configurations. These ridge configurations have attracted the at tention of laymen for millenia. They have also evoked the serious interest of scientists for more than three centuries. The anatomist Bidloo provided a description of ridge detail in the seventeenth cen tury. Since then, additional information has been added by anthro pologists, biologists, and geneticists. For the last century, the fact that each individual's ridge configurations are unique has been uti lized as a means of personal identification especially by law enforce ment officials. Widespread medical interest in epidermal ridges de veloped only in the last several decades when it became apparent that many patients with chromosomal aberrations had unusual ridge formations. Inspection of skin ridges, therefore, promised to provide a simple, inexpensive means for determining whether a given patient had a particular chromosomal defect. However, the promise was only partially fulfilled because of the inherent variability of skin ridge configurations. It was possible to draw conclusions about ridge ab normalities in groups of patients but not always in a given individual. Patients and clinicians became somewhat disenchanted with the clinical value of studying ridges.

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Produktdetails

• Verlag: Springer Berlin Heidelberg
• Seitenzahl: 258
• Erscheinungstermin: 6. Dezember 2012
• Englisch
• ISBN-13: 9783642516207
• Artikelnr.: 53386123

Inhaltsangabe

1 Embryogenesis and Genetics of Epidermal Ridges.- 2 Methods of Recording Dermatoglyphics.- Standard Methods.- Ink Methods.- Inkless Methods.- Transparent Adhesive Tape Method.- Photographic Method.- Special Methods.- Hygrophotography.- Radiodermatography.- Plastic Mold.- Automatic Pattern Recognition.- 3 Dermatoglyphic Pattern Configurations.- Ridge Detail (Minutiae).- Pattern Configurations.- Fingers (Fingertip pattern configurations, Dermatoglyphic landmarks, Patterns of middle and proximal phalanges).- Palms (Palmar pattern configuratións, Palmar landmarks).- Toes.- Soles (Plantar pattern configurations, Plantar landmarks).- Quantitative Analysis.- Pattern Intensity.- Ridge Counting (Finger and toe ridge counts, Ridge counts of digital areas, Ridge counting in patterns lacking triradii, Estimation of the ridge count on missing or mutilated finger-tips).- Position of Axial Triradius (atd angle, Measurement of distal deviation, Ridge counting, Breadth ratio).- Main-line Index.-

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1 Embryogenesis and Genetics of Epidermal Ridges.- 2 Methods of Recording Dermatoglyphics.- Standard Methods.- Special Methods.- 3 Dermatoglyphic Pattern Configurations.- Ridge Detail (Minutiae).- Pattern Configurations.- Quantitative Analysis.- Dermatoglyphic Topology.- Frequency of Dermatoglyphic Traits in Normal Populations.- 4 Congenital Malformations of Dermatoglyphics.- Ridge Aplasia.- Ridge Hypoplasia.- Ridge Dissociation.- "Ridges-off-the-end".- 5 Flexion Creases.- Embryology of Flexion Creases.- Classification of Palmar Flexion Creases.- Plantar Flexion Creases.- White Lines.- 6 Medical Disorders with Associated Dermatoglyphic Abnormalities.- Congenital Malformations of Hands and Feet.- Autosomal Trisomies.- Aberrations of Sex Chromosomes.- Triploidy.- Structural Chromosomal Aberrations.- Single-Gene Disorders and Disorders with Uncertain Genetic Transmission.- Nongenetic and Exogenous Factors.