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Related Concept Videos

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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Common Ion Effect03:24

Common Ion Effect

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Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide:
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Pigmentation01:19

Pigmentation

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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...
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Common Respiratory Disorders01:31

Common Respiratory Disorders

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Respiratory disorders, a prevalent health concern globally, are generally divided into two primary categories: upper and lower respiratory tract disorders. The categorization is based on the area of the respiratory system they affect.
Upper respiratory disorders impact the airways above the vocal cords, encompassing areas like the nose, sinuses, and throat. Various conditions fall under this category, including the common cold and allergic rhinitis. These disorders can stem from several causes,...
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Common Names of Aldehydes and Ketones01:11

Common Names of Aldehydes and Ketones

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Some common aldehydes and ketones are popularly known by their common names used historically and predate the IUPAC nomenclature.   
Common names of aldehydes are derived from the names of their corresponding acid. For instance, the two-carbon aldehyde–acetaldehyde derives its name from the corresponding acid–acetic acid. Similarly, formaldehyde derives its name from formic acid and benzaldehyde from benzoic acid.
Aliphatic ketones are named by suffixing the word “ketone” to the...
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Mass Analyzers: Common Types01:19

Mass Analyzers: Common Types

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The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
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Related Experiment Video

Updated: Jan 23, 2026

Combining Reflectance Confocal Microscopy with Optical Coherence Tomography for Noninvasive Diagnosis of Skin Cancers via Image Acquisition
09:37

Combining Reflectance Confocal Microscopy with Optical Coherence Tomography for Noninvasive Diagnosis of Skin Cancers via Image Acquisition

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Common non pigmented skin cancer.

J Menz

    Australian Family Physician
    |November 1, 1992
    PubMed
    Summary

    This article focuses on common skin cancers, excluding rare types like angiosarcoma. Biopsy is essential for diagnosing any suspicious skin lesion to ensure proper treatment.

    Area of Science:

    • Dermatology
    • Oncology

    Background:

    • Non-melanoma skin cancers represent a significant oncological burden.
    • Less common skin malignancies require careful consideration despite lower incidence.

    Purpose of the Study:

    • To delineate the scope of common non-melanoma skin cancers discussed.
    • To emphasize the diagnostic importance of histopathology for all skin lesions.

    Main Methods:

    • Review of common non-melanoma skin cancer presentations.
    • Highlighting diagnostic criteria for suspicious skin lesions.

    Main Results:

    • Exclusion of rare skin cancers (angiosarcoma, B cell lymphoma, atypical fibroxanthoma) from detailed discussion.
    • Emphasis on the universal need for biopsy in uncertain cases.

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    Dissection of a Mouse Eye for a Whole Mount of the Retinal Pigment Epithelium

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    Conclusions:

    • Histopathological diagnosis via biopsy is mandatory when a skin lesion's nature is uncertain.
    • Timely diagnosis facilitates appropriate and effective treatment for skin cancers.