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Related Concept Videos

Penis01:29

Penis

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The penis serves a dual role in sexual reproduction and urination. It consists of three main regions: the glans penis, the body, and the root, each with distinct functions and unique anatomical features.
Anatomy of the Penis
The glans penis, or the head, is the terminal part of the penis and houses the external urethral orifice, the exit point for urine and semen. Covered by the prepuce, or foreskin, the glans is noted for its sensitivity and plays a key role in sexual pleasure. The body of the...
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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.
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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Disorders of the Male Reproductive System01:20

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Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra....
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Abnormal Proliferation02:23

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Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
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Male Sexual Response: Erection & Ejaculation01:17

Male Sexual Response: Erection & Ejaculation

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Sexual stimulation can take various forms, such as physical touch and visual or auditory cues. When this happens, the parasympathetic reflex in the sacral portion of the spinal cord is activated. This reflex stimulates the release of nitric oxide (NO), which then dilates the arterioles in the penis, increasing blood flow to the erectile tissues - the corpora cavernosa and corpus spongiosum.
The blood filling the erectile tissues compresses the veins, which helps to prevent blood from leaving...
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Accessory Glands of the Male Reproductive System01:16

Accessory Glands of the Male Reproductive System

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The accessory ducts involved in sperm maturation and transportation include the epididymides, vasa deferentia, ejaculatory ducts, and urethra. These ducts play a critical role in the maturation, storage, and transportation of sperm from the testes to the urethra, where it is then released during ejaculation.
The epididymis is a small, comma-shaped organ located at the back of each testicle. The epididymis can be divided into three main parts: the head, body, and tail. The head of the epididymis...
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Related Experiment Video

Updated: Aug 30, 2025

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An unusual penile lesion.

Eugene Liat Hui Ong1, Marzena Ratynska2, Kate Sherring2

  • 1Departments of Dermatology, University College London Hospital, University College London Hospitals NHS Foundation Trust, London, UK.

Clinical and Experimental Dermatology
|September 2, 2022
PubMed
Summary
This summary is machine-generated.

This case report details an unusual orange-brown penile lesion. Histological examination provided key diagnostic findings for this rare presentation.

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Area of Science:

  • Dermatopathology
  • Uropathology

Background:

  • Penile lesions can present with diverse clinical and histological features.
  • Early and accurate diagnosis is crucial for appropriate management.

Observation:

  • An unusual case of an orange-brown penile lesion is presented.
  • Clinical presentation and macroscopic appearance are described.

Findings:

  • Histological examination revealed specific cellular and structural characteristics.
  • Detailed microscopic findings are provided to aid in diagnosis.

Implications:

  • Understanding rare penile lesions improves diagnostic accuracy.
  • This case contributes to the literature on penile dermatopathology.