25 results
Erythroderma - Diagnostic Algorithm. Pathophysiology: 1) Extensive cutaneous capillary dilation, results in widespread exfoliation of the
Pathophysiology: ... epidermal turnover rate ... accelerated mitotic rate ... #Dermatology #Rash ... Nikolsky #Algorithm #Differential
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Secondary Syphilis Rash ... the latent and late ... lesions—Condyloma lata—on ... #Diagnosis #Clinical ... #Photo #Dermatology
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
Christmas Tree Rash ... palms/soles - Differential ... ChristmasTree #Rash ... Pityriasis #rosea #clinical ... #dermatology #photo
Acute Purpura Fulminans Skin Rash on Physical Exam 
60 year old male ITP s/p splenectomy 
1d
Fulminans Skin Rash ... nausea. 2hrs later ... new full-body rash ... fulminans) and critical ... #clinical #photo
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
Amyotrophic Lateral ... combination of the clinical ... lateral sclerosis Pathophysiology ... features developing later ... conditions listed in differential
Purple Urine Bag Syndrome
Chronic, indwelling catheter + bacteriuria (Providencia, Klebsiella, E.coli*) + alkaline urine
Tryptophan → Indoxyl
Syndrome #PUBS #pathophysiology ... #clinical #photo ... #differential #
Lymphocutaneous Sporotrichiosis Infection

Landscaper w/ painless nodular rash of arm present for months wax and wane; diagnosis?
Lymphocutaneous
painless nodular rash ... biopsy preferred Differential ... Sporotrichiosis #Infection #clinical ... #photo #hand
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Normal: < 1% Clinically ... Neutrophil (Normal) Differential ... likelihood of negative clinical ... #Bandemia #differential ... CBC #hematology #pathophysiology
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Maculopapular rash ... • Common clinical ... CSF has a 99% sensitivity ... • Uveitis • Rash ... with a diagnostic sensitivity
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess Pathophysiology ... Lung Abscess - Clinical ... CXR upright or lat ... Lung Abscess Differential ... Abscess #pulmonary #differential