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Skin Cancer01:30

Skin Cancer

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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...
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Updated: Apr 17, 2026

Isolation, Culture, and Characterization of Primary Dermal Fibroblasts from Human Keloid Tissue
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[Keloid scars: a case series study].

Marion Carmassi1, Julia Eraud2, David Gonelli2

  • 1Laboratoire d'anatomie et cytologie pathologique, hôpital Nord, chemin des Bourrely, 13915 Marseille cedex 20, France.

Annales De Pathologie
|February 18, 2015
PubMed
Summary
This summary is machine-generated.

Keloid scars, a pathological healing process, often cause discomfort and frequently recur after surgery. Histological examination is crucial for accurately diagnosing keloid, hypertrophic, and mixed scars, aiding treatment decisions.

Keywords:
ChéloïdeCicatrice hypertrophiqueHypertrophic scarKeloidTrichromeTrichrome stain

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Area of Science:

  • Dermatology
  • Pathology
  • Surgical Oncology

Context:

  • Keloid scars represent abnormal wound healing, leading to cosmetic and functional issues.
  • Distinguishing keloids from hypertrophic scars can be challenging clinically and histologically.
  • Mixed scar morphologies, combining keloid and hypertrophic features, also exist.

Purpose:

  • To retrospectively analyze patient data undergoing surgery for keloid scars.
  • To evaluate the diagnostic utility of histological examination in differentiating scar types.
  • To identify common characteristics and locations of keloid scars.

Summary:

  • A review of 52 patients with 54 scars found 38 keloids, 8 hypertrophic, and 7 mixed scars.
  • The mean patient age was 30 years, with a female predominance (1.2:1 ratio).
  • Frequent scar locations included the ear, thorax, and shoulder, with disease duration typically exceeding one year.

Impact:

  • Histological examination, including specific staining (trichrome, orcein) and immunostaining (alpha smooth muscle actin), confirms definitive scar diagnosis.
  • Accurate diagnosis is essential for managing keloid scar recurrence and improving patient outcomes.
  • Understanding scar heterogeneity aids in developing targeted therapeutic strategies.