14 results
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
polyangiitis (GPA) is common ... or more commonly ... associated with pruritus ... • Goodpasture syndrome ... #rheumatology
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Creatinine & BUN: • Chronic ... Differential: • Lymphoma ... syndrome Psychiatric ... #primary #secondary ... #generalized #dermatology
Pruritus - No Primary Skin Lesion - Differential Diagnosis Algorithm

Blood Glucose:
 • Diabetes Mellitus
Liver Function Tests/Enzymes:
Skin Lesion - Differential ... Creatinine & BUN: • Chronic ... Differential: • Lymphoma ... syndrome Psychiatric ... #secondary #systemic
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
extramedullary disease ... bone marrow and secondary ... -> Invade Skin: ... #Hematology #Oncology ... #Diagnosis
Chronic Lymphocytic Leukemia - Summary

Cancer affecting lymphocytes/Mature B cell neoplasm
 • Lymphocytes accumulate in large numbers
: • Most common ... Hepatomegaly • Skin ... cells can indicate disease ... #workup #oncology ... #hematology
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
infection risk secondary ... to impaired B-cell ... hepatitis • Lymphoma ... • Nodules • Lymphoid ... hypogammaglobulinemia #immunology #hematology
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
just beneath the skin ... Most common cytopenia ... DDX: Rule Out Secondary ... #Syndromes #diagnosis ... #hematology #oncology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Eosinophilia, asthma, chronic ... Drug Associated (Commonly ... (Granulomatous ... #rheumatology # ... classification
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... CRP GCA (Giant Cell ... Nodosa: • PAN most commonly ... Eosinophilia, asthma, chronic ... #Rheumatology
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
(HCV) • CLL & ... Alpha & Mu) Skin ... Paraproteinemias #Hematology ... #Differential #Diagnosis ... #Oncology