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Related Concept Videos

Accessory Structures of the Skin: Sebaceous Glands01:21

Accessory Structures of the Skin: Sebaceous Glands

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A sebaceous gland is a type of oil gland found almost all over the skin ( except palms and soles) and helps lubricate and waterproof the skin and hair. Most sebaceous glands are associated with hair follicles. They generate and excrete sebum, a mixture of lipids, onto the skin surface, thereby naturally lubricating the dry and dead layer of keratinized cells of the stratum corneum, keeping it pliable.
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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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Papillary Dermis01:11

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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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Accessory Structures of the Skin: Sweat Glands01:20

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Sweat glands or sudoriferous glands are one of the important accessory structures of the skin. They are small, coiled tubular structures located in the dermis, the middle layer of the skin. Sweat glands are responsible for producing and secreting sweat, a watery fluid that helps regulate body temperature and excrete waste products.
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Acne is a multifactorial skin condition primarily affecting adolescents and young adults, with a global prevalence estimated to exceed 75% in this demographic. The condition is characterized by the formation of comedones (blackheads and whiteheads), papules, pustules, nodules, and, in severe cases, cysts, particularly in areas rich in sebaceous glands such as the face, neck, chest, and back. The pathogenesis involves increased sebum production, follicular hyperkeratinization, colonization by...
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Clinical Applications of Epidermal Stem Cells01:19

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Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
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Related Experiment Video

Updated: Apr 16, 2026

Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia
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Periungual eccrine poroma.

Leonel Fierro-Arias1, Luz Calderón2, Amelia Peniche-Castellanos2

  • 1Dermatologic Surgery and Oncology Unit, Dermatology Service, and Dermatopathology Service, Hospital General de México, Mexico City, Mexico leofierro@yahoo.com.

Journal of Cutaneous Medicine and Surgery
|March 17, 2015
PubMed
Summary
This summary is machine-generated.

This report details a rare case of eccrine poroma, a benign sweat duct tumor, found in an unusual body location. Surgical management and follow-up for this skin appendage tumor are discussed.

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Area of Science:

  • Dermatology
  • Surgical Oncology

Background:

  • Eccrine poroma is a rare, benign skin tumor arising from the eccrine sweat duct.
  • Typically located on the feet, it can occur anywhere with sweat glands.

Observation:

  • This case presents an eccrine poroma in an atypical anatomical site.
  • The report focuses on the surgical intervention and subsequent patient monitoring.

Findings:

  • Successful surgical excision of the eccrine poroma was achieved.
  • Post-operative follow-up confirmed no recurrence of the benign tumor.

Implications:

  • Highlights the importance of considering eccrine poroma in unusual locations.
  • Demonstrates effective surgical management and follow-up protocols for this rare skin neoplasm.