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Related Concept Videos

Skin Diseases and Disorders01:23

Skin Diseases and Disorders

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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.
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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
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Classification of Epithelial Tissues: Stratified Epithelium01:29

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Stratified epithelium consists of several stacked layers of cells. They provide the durability to withstand constant physical and chemical attacks. Stratified epithelium is named after the shape of the most apical layer of cells. Stratified squamous epithelium is the most common type found in the human body. In this tissue, the apical cells are squamous, whereas the basal layer contains either columnar or cuboidal cells. The basal cells divide to form new daughter cells, which gradually become...
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Skin Cancer01:30

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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.
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The Retinoblastoma Gene01:20

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Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
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Updated: May 3, 2026

Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia
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Multiple trichoepitheliomas: A rare occurrence.

Arvind Karikal1, Pushparaj Shetty2, Arathi Karikal3

  • 1Department of Oral and Maxillofacial Surgery, A. B. Shetty Memorial Institute of Dental Sciences, Nitte University, Mangalore, Karnataka, India.

South Asian Journal of Cancer
|January 24, 2014
PubMed
Summary
This summary is machine-generated.

Trichoepithelioma, a rare hair follicle tumor, typically affects females. This case report details a rare occurrence in a male patient with multiple facial growths and varied histopathology.

Keywords:
Benignfaceneoplasmtrichoepithelioma

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Area of Science:

  • Dermatology
  • Oncology
  • Pathology

Background:

  • Trichoepithelioma is a rare, benign skin neoplasm originating from the hair follicle.
  • It commonly presents as multiple facial lesions, predominantly affecting females.
  • Malignant transformation to basal cell carcinoma is infrequent and occurs late.

Observation:

  • This report describes a unique case of multiple trichoepitheliomas in a male patient.
  • The patient exhibited numerous dermatologic growths on the face.
  • Histopathological examination revealed varied presentations of the lesions.

Findings:

  • The case highlights the occurrence of trichoepithelioma in a male, challenging the typical demographic presentation.
  • Varied histopathological findings underscore the diagnostic complexity of these lesions.
  • The growths were clinically misdiagnosed, emphasizing the need for careful evaluation.

Implications:

  • This case expands the known clinical spectrum of trichoepithelioma.
  • Accurate diagnosis is crucial to differentiate from other facial neoplasms like basal cell carcinoma.
  • Further research may elucidate the genetic and molecular factors influencing presentation and potential malignant transformation.