[Pseudoxanthoma elasticum. More than a skin problem]

S A Braun1, D Finis, D Helbig

  • 1Hautklinik des Universitätsklinikums Düsseldorf.

Insights

Pseudoxanthoma elasticum (PXE) is a rare genetic disorder causing tissue mineralization. Early diagnosis via skin and eye findings is crucial for managing this condition, as effective cures are unavailable.

Area of Science:

  • Genetics
  • Dermatology
  • Ophthalmology
  • Cardiology

Background:

  • Pseudoxanthoma elasticum (PXE) is a rare, autosomal recessive genetic disorder.
  • It involves ectopic mineralization of connective tissues, affecting skin, eyes, and the cardiovascular system.
  • Mutations in the ABCC6 gene are the known cause of PXE.

Observation:

  • A 9-year-old boy presented with lifelong periumbilical skin abnormalities.
  • Retinal findings, specifically the "peau d'orange" phenomenon, were observed.
  • These clinical signs facilitated a definitive PXE diagnosis based on 2010 criteria.

Findings:

  • PXE diagnosis was confirmed in a pediatric patient presenting with characteristic skin and retinal manifestations.
  • The case highlights the importance of recognizing clinical signs for early identification of PXE.
  • No curative treatments currently exist for Pseudoxanthoma elasticum.

Implications:

  • Interdisciplinary management involving dermatology, ophthalmology, and cardiology is essential for PXE patients.
  • Proactive monitoring and care are vital to prevent severe ocular and cardiovascular complications.
  • Further research into PXE pathogenesis and therapeutic strategies is warranted.

Related Concept Videos

Skin Cancer01:30

Skin Cancer

Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Skin Diseases and Disorders01:23

Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
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...
Changes in Skin Color: Clinical Perspectives01:14

Changes in Skin Color: Clinical Perspectives

The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
Pigmentation01:19

Pigmentation

The color of the skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. The melanin is transferred to the keratinocytes via melanosomes.
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
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...