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Dermatology

Primary Immunodeficiencies

Built from Dermatology, 5th Edition

The first 25 slides of Primary Immunodeficiencies
The first 25 slides, exactly as they appear. The full deck has 117 content slides.

What’s inside

8 sections · 117 slides

  1. 01

    Overview

    • What this topic covers

    1 slide

  2. 02

    Introduction

    What a primary immunodeficiency is, and why the skin often gives the first clue

    • What is a primary immunodeficiency?
    • When to suspect a primary immunodeficiency
    • Primary immunodeficiencies: classification from the International Union of Immunological Societies Expert Committee and disorders discussed in other chapters. (1 of 2)
    • Primary immunodeficiencies: classification from the International Union of Immunological Societies Expert Committee and disorders discussed in other chapters. (2 of 2)
    • Primary immunodeficiencies: classification from the International Union of Immunological Societies Expert Committee and disorders discussed in other chapters. (2 of 2) (continued)
    • Primary immunodeficiencies: classification from the International Union of Immunological Societies Expert Committee and disorders discussed in other chapters. (2 of 2) (continued)
    • Cutaneous findings in primary immunodeficiency disorders. (1 of 2)
    • Cutaneous findings in primary immunodeficiency disorders. (1 of 2) (continued)
    • Cutaneous findings in primary immunodeficiency disorders. (2 of 2)
    • Cutaneous findings in primary immunodeficiency disorders. (2 of 2) (continued)
    • Screening laboratory tests to assess for a primary immunodeficiency in a patient with recurrent cutaneous infections. (1 of 2)
    • Screening laboratory tests to assess for a primary immunodeficiency in a patient with recurrent cutaneous infections. (2 of 2)
    • Screening laboratory tests to assess for a primary immunodeficiency in a patient with recurrent cutaneous infections. (2 of 2) (continued)

    13 slides

  3. 03

    Ataxia-Telangiectasia

    Progressive ataxia, ocular telangiectasias, and combined immunodeficiency from a DNA-repair gene defect

    • Ataxia-telangiectasia: key features
    • Epidemiology of ataxia-telangiectasia
    • The ATM gene: a DNA-damage alarm
    • From DNA damage to ATM activation
    • Why one gene explains so many features
    • Related DNA-repair gene disorders
    • Ocular, facial, and cutaneous telangiectasias in ataxia-telangiectasia
    • Ocular telangiectasias: the classic sign
    • Progeric skin and hair changes
    • Other skin findings and neurologic course
    • Systemic manifestations
    • Malignancy risk
    • Laboratory findings
    • Diagnostic clues and confirmation
    • Differential diagnosis
    • Treatment: supportive care
    • Treatment: special precautions

    17 slides

  4. 04

    Chronic Mucocutaneous Candidiasis

    Recurrent Candida infections of skin, nails, and mucosa from an impaired IL-17 immune response

    • Chronic mucocutaneous candidiasis: key features
    • Why IL-17 matters for Candida defense
    • Epidemiology of CMC
    • Disruption of IL-17 immunity in CMC
    • APECED: autoimmunity from a thymus defect
    • STAT1 gain-of-function: the most common cause
    • Other IL-17 pathway gene defects
    • Variants of chronic mucocutaneous candidiasis (CMC) in children and adolescents.
    • Variants of chronic mucocutaneous candidiasis (CMC) in children and adolescents. (continued)
    • Variants of chronic mucocutaneous candidiasis (CMC) in children and adolescents. (continued)
    • Mechanisms behind chronic mucocutaneous candidiasis
    • Clinical spectrum of CMC
    • Oral thrush and dermatophyte infections with increased STAT1 signaling
    • Nail, palm, and intravenous-site candidiasis
    • Beyond Candida: other infections and lab clues
    • Differential diagnosis of CMC
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (1 of 3)
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (1 of 3) (continued)
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (1 of 3) (continued)
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (2 of 3)
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (2 of 3) (continued)
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (2 of 3) (continued)
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (3 of 3)
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (3 of 3) (continued)
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (3 of 3) (continued)
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (3 of 3) (continued)
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (3 of 3) (continued)
    • Inherited disorders characterized by lymphoproliferation due to immune dysregulation. (3 of 3) (continued)
    • Treatment of chronic mucocutaneous candidiasis
    • Monitoring for CMC

    30 slides

  5. 05

    Cartilage-Hair Hypoplasia Syndrome

    A skeletal dysplasia with fine hypopigmented hair and variable immunodeficiency

    • Cartilage-hair hypoplasia: key features
    • Cause and epidemiology
    • Clinical features
    • Immune and other manifestations
    • Treatment

    5 slides

  6. 06

    Chédiak-Higashi Syndrome

    A vesicle-trafficking disorder causing giant granules, silvery hair, and infection risk

    • Chédiak-Higashi syndrome: key features
    • Epidemiology of Chédiak-Higashi syndrome
    • LYST and vesicle trafficking
    • Genotype and consequences
    • Chain from LYST mutation to disease
    • Pigment and eye findings
    • Infections and bleeding tendency
    • The accelerated phase
    • Neurologic course and diagnostic pathology
    • Hair shaft microscopy in Chédiak-Higashi syndrome
    • Features of Chédiak–Higashi syndrome (CHS) and Griscelli syndrome (GS).
    • Features of Chédiak–Higashi syndrome (CHS) and Griscelli syndrome (GS). (continued)
    • Other differential diagnoses
    • Treatment of Chédiak-Higashi syndrome

    14 slides

  7. 07

    Complement Disorders

    Deficiencies in the innate-immune protein cascade that raise infection and autoimmune risk

    • Complement disorders: key features
    • What the complement system does
    • The three complement activation pathways and their effects
    • Complement split products and complexes
    • Epidemiology of complement deficiencies
    • Early pathway defects and lupus risk
    • Why complement loss can cause lupus
    • Complement disorders.
    • Complement disorders. (continued)
    • Complement disorders. (continued)
    • Infection risk pattern by pathway
    • Clinical features: SLE risk by deficiency
    • Features of systemic lupus erythematosus (SLE) in C2 deficiency.
    • Mannose-binding lectin deficiency
    • Diagnosis of complement disorders
    • Differential diagnosis
    • Treatment of complement disorders

    17 slides

  8. 08

    Chronic Granulomatous Disease

    Failure of the neutrophil oxidative burst leads to recurrent infection and granuloma formation

    • Chronic granulomatous disease: key features
    • Epidemiology of chronic granulomatous disease
    • NADPH oxidase: the phagocyte's bleach-maker
    • Subunits of the NADPH oxidase complex
    • Genetic defects affecting components of the phagocyte NADPH oxidase. (1 of 3)
    • Genetic defects affecting components of the phagocyte NADPH oxidase. (2 of 3)
    • Genetic defects affecting components of the phagocyte NADPH oxidase. (3 of 3)
    • From phagocytosis to microbial killing (and its failure in CGD)
    • Beyond killing: reactive oxygen species also limit inflammation
    • Clinical pattern of chronic granulomatous disease
    • Organisms that cause infections in patients with chronic granulomatous disease. (1 of 2)
    • Organisms that cause infections in patients with chronic granulomatous disease. (2 of 2)
    • Early skin disease in CGD
    • Abscesses and non-infectious skin lesions
    • Additional cutaneous manifestations
    • Findings in female carriers
    • Six disorders, one theme: skin as an early clue
    • Clinical pearls for spotting a primary immunodeficiency
    • A note on this deck's source material
    • Dermatology, 5th Edition (2-Volume Set)

    20 slides