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Related Concept Videos

Elastin is Responsible for Tissue Elasticity01:12

Elastin is Responsible for Tissue Elasticity

Elastic fiber contains the protein elastin along with lesser amounts of other proteins and glycoproteins. The main property of elastin is that it will return to its original shape after being stretched or compressed. Elastic fibers are prominent in elastic tissues found in skin and the elastic ligaments of the vertebral column.
Ligaments and tendons are made of dense regular connective tissue, but in ligaments not all fibers are parallel. Dense regular elastic tissue contains elastin fibers and...
Reticular Dermis01:15

Reticular Dermis

The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
Papillary Dermis01:11

Papillary Dermis

Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen and...

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Related Experiment Video

Updated: Jun 2, 2026

Mouse Abdominal Aortic Aneurysm Model Induced by Perivascular Application of Elastase
04:49

Mouse Abdominal Aortic Aneurysm Model Induced by Perivascular Application of Elastase

Published on: February 11, 2022

Pseudoxantoma elasticum-like dermal elastolysis: a case report.

Verónica López, Angeles Revert, Nuria Santonja

    Dermatology Online Journal
    |May 10, 2011
    PubMed
    Summary

    This study describes pseudoxanthoma-like papillary dermal elastolysis, a newly identified disorder affecting elastic fibers in the skin. A case involving a 61-year-old woman is presented.

    Area of Science:

    • Dermatology
    • Connective Tissue Disorders
    • Histopathology

    Background:

    • Elastic fibers are crucial dermal connective tissue components.
    • Acquired disorders can impact elastic fibers.
    • Pseudoxanthoma-like papillary dermal elastolysis is a recently described entity.

    Observation:

    • A case study of a 61-year-old woman is presented.
    • Clinical and histological features of the condition were observed.

    Findings:

    • The patient presented with characteristics of pseudoxanthoma-like papillary dermal elastolysis.
    • Histopathological examination confirmed the elastolytic changes in the papillary dermis.

    Implications:

    • This case contributes to the understanding of pseudoxanthoma-like papillary dermal elastolysis.

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  • Further research is needed to elucidate the pathogenesis and treatment of this rare disorder.