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Dermatology

Amyloidosis

Built from Dermatology, 5th Edition

The first 25 slides of Amyloidosis
The first 25 slides, exactly as they appear. The full deck has 89 content slides.

What’s inside

12 sections · 89 slides

  1. 01

    Overview

    • What this deck covers

    1 slide

  2. 02

    Introduction & classification

    What amyloid is, its history, how common it is, and how it is grouped

    • What amyloidosis is
    • Two ways dermatologists meet amyloidosis
    • Approaching amyloidosis involving the skin
    • History of amyloid
    • How common is amyloidosis
    • Two ways to classify amyloidosis
    • Clinical classification of amyloidosis
    • Reading the chemical classification table
    • Chemical classification of amyloidoses
    • Chemical classification of amyloidoses (continued)
    • Chemical classification of amyloidoses (continued)
    • Chemical classification of amyloidoses (continued)
    • Amyloid, grouped by its precursor protein

    13 slides

  3. 03

    Pathogenesis & amyloid properties

    How normal proteins misfold into amyloid, and how pathologists identify it

    • How amyloid forms
    • What drives primary cutaneous amyloid
    • Nodular amyloidosis has a different origin
    • Amyloid's structural signature
    • Cross-beta-pleated sheet structure of amyloid fibrils
    • Histologic and ultrastructural features of amyloid
    • Special stains that identify amyloid deposits
    • Histopathologic features of amyloid deposits 2

    8 slides

  4. 04

    Macular and lichen amyloidosis

    The itchy, pigmented skin-only forms, and how they differ

    • Macular, lichen, and biphasic amyloidosis
    • Macular amyloidosis
    • Macular amyloidosis - clinical and histologic features
    • Friction and notalgia paresthetica overlap
    • Lichen amyloidosis
    • Lichen amyloidosis of the shins and calves
    • Lichen amyloidosis in a linear array
    • Lichen amyloidosis of the forearm
    • Lichen amyloidosis of the legs
    • Lichen amyloidosis of the extensor arms
    • Unusual sites and disease associations
    • Cutaneous amyloidosis in systemic sclerosis

    12 slides

  5. 05

    Familial cutaneous amyloidosis syndromes

    Inherited gene changes that predispose to skin-only amyloid deposits

    • Genes behind familial skin amyloidosis
    • Familial cutaneous amyloidosis, by gene
    • IL-31 receptor-associated amyloidosis
    • Dyschromic amyloidosis
    • Dyschromic amyloidosis cutis
    • Sipple syndrome (MEN type 2A)
    • Partington amyloidosis (X-linked)
    • Other associations and drug-triggered amyloid
    • Anakinra-associated amyloidosis at an injection site

    9 slides

  6. 06

    Nodular amyloidosis

    The rarest cutaneous form, and why it needs long-term follow-up

    • Nodular amyloidosis - clinical features
    • Nodular amyloidosis - clinical and histologic features
    • Nodular amyloidosis of the plantar surface
    • Nodular amyloidosis papules of the sole
    • Does nodular amyloidosis progress to systemic disease

    5 slides

  7. 07

    Pathology & differential diagnosis

    What biopsies show, and the look-alike conditions to rule out

    • Pathology of macular and lichen amyloidosis
    • Macular amyloidosis on histology
    • Pathology of nodular amyloidosis
    • Look-alikes for macular amyloidosis
    • Look-alikes for lichen amyloidosis
    • Look-alikes for nodular amyloidosis

    6 slides

  8. 08

    Treating cutaneous amyloidosis

    Breaking the itch-scratch cycle, since no cure yet exists

    • Principles of treating macular and lichen amyloidosis
    • Treatment of macular and lichen amyloidosis
    • Escalating therapy for macular and lichen amyloidosis
    • More treatment options, ranked by evidence
    • Treating nodular amyloidosis

    5 slides

  9. 09

    Secondary cutaneous amyloidosis

    Amyloid found by accident inside unrelated skin growths

    • Secondary cutaneous amyloidosis
    • Hypotrichosis simplex of the scalp

    2 slides

  10. 10

    Primary systemic (AL) amyloidosis

    A life-threatening plasma cell disease, and how it shows up in skin

    • AL amyloidosis - the basics
    • Oral cavity findings in AL amyloidosis
    • Mucocutaneous findings in primary systemic AL amyloidosis
    • Macroglossia and tongue papulonodules in AL amyloidosis
    • Purpura - bruising from fragile vessels
    • Periorbital purpura in AL amyloidosis
    • Waxy papules and plaques in AL amyloidosis
    • Waxy translucent facial papules in AL amyloidosis
    • Other skin and nail changes in AL amyloidosis
    • Organ involvement beyond the skin
    • Confirming the diagnosis of AL amyloidosis
    • Evaluating a patient with suspected AL amyloidosis
    • Pathology of AL amyloidosis in the skin
    • Perivascular amyloid deposits on histology
    • Differential diagnosis of AL amyloidosis
    • Treating AL amyloidosis

    16 slides

  11. 11

    Secondary systemic (AA) amyloidosis

    Amyloid triggered by long-standing inflammation or infection

    • Two forms of systemic amyloidosis, at a glance
    • AA amyloidosis
    • Treating AA amyloidosis

    3 slides

  12. 12

    Other systemic and inherited amyloidoses

    Dialysis-related and inherited forms

    • Hemodialysis-associated amyloidosis
    • Finnish-type familial amyloidosis (AGel)
    • Transthyretin (ATTR) amyloidosis
    • Treating ATTR amyloidosis
    • Key takeaways
    • References
    • References (continued)
    • References (continued)
    • Dermatology, 5th Edition (2-Volume Set)

    9 slides