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Related Concept Videos

Skin Diseases and Disorders01:23

Skin Diseases and Disorders

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.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Leishmaniasis01:30

Leishmaniasis

Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...
Smallpox01:24

Smallpox

Smallpox is a severe contagious disease caused by the Variola major virus, a double-stranded DNA member of the Poxviridae family.Variola major transmission occurs primarily via inhalation of virus-laden droplets or direct contact with infectious scabs. The incubation period averages approximately seven days, although it may range from 7 to 17 days depending on the inoculum and host factors.Clinically, the prodromal phase is marked by an abrupt onset of high fever, malaise, headache, and myalgia.
Giardiasis01:12

Giardiasis

Giardiasis is a globally prevalent intestinal infection caused by the protozoan parasite Giardia duodenalis (also known as G. lamblia or G. intestinalis). This flagellated protozoan is the most frequently identified intestinal parasite in the United States and worldwide. Transmission primarily occurs via the fecal-oral route, with infection arising from ingestion of water or food contaminated with cysts. Individuals in low-resource settings, international travelers, outdoor enthusiasts, daycare...
Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
Changes in Skin Color: Clinical Perspectives01:14

Changes in Skin Color: Clinical Perspectives

The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...

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Granulocyte-dependent Autoantibody-induced Skin Blistering
12:23

Granulocyte-dependent Autoantibody-induced Skin Blistering

Published on: October 12, 2012

Blaschkoid pityriasis versicolor.

Cheng Tan, Wen-Yuan Zhu, Zhong-Sheng Min

    Mycoses
    |June 3, 2009
    PubMed
    Summary
    This summary is machine-generated.

    This study describes a rare case of blaschkoid pityriasis versicolor (PV) in a male patient. The condition presented as S-shaped, band-like skin lesions, diagnosed via mycological and Wood

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    Area of Science:

    • Dermatology
    • Mycology
    • Medical Diagnostics

    Background:

    • Pityriasis versicolor (PV) is a common superficial fungal infection.
    • Blaschkoid distribution of dermatoses is a rare phenomenon.

    Observation:

    • A 31-year-old male presented with follicular, brownish-red maculopapules on the right chest.
    • Lesions exhibited S-shaped, band-like patterns along Blaschko's lines.
    • Skin scrapings showed characteristic 'spaghetti and meatballs' yeast and hyphae.
    • Wood's light examination revealed golden yellow fluorescence.

    Findings:

    • The clinical presentation and diagnostic findings are consistent with a novel variant of pityriasis versicolor.
    • The blaschkoid distribution suggests a unique presentation of this fungal infection.

    Implications:

    • This case expands the known clinical spectrum of pityriasis versicolor.
    • Recognizing blaschkoid PV is crucial for accurate diagnosis and management.
    • Further research may elucidate the pathogenesis of this variant.