13 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
or air-filled lesions ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... Emphysema #SignetRing #RadiologyAssistant
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Maculopapular - Diagnostic ... or fluid-filled lesions ... sulfa-drug - Skin ... Targetoid #Algorithm #Differential ... #Ddxof
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Palpable: 1) If lesions ... commonly renal and pulmonary ... Dermatology #Rash ... Palpable #Algorithm #Differential ... #Ddxof
Fluid-filled Rash - Diagnostic Algorithm.  Pustule: 1) Pustules more commonly suggest an infectious process (bacterial,
Vesiculobullous lesions ... proteins in the skin ... #Diagnosis #Dermatology ... Bullous #Algorithm #Differential ... #Ddxof
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
axis of lesion ... parallel to lines of skin ... palms/soles - Differential ... diagnosis: secondary ... rosea #clinical #dermatology
Small Vessel Vasculitides
 • Granulomatosis with polyangiitis - Granulomatous manifestations (e.g., nasal crusting, destructive sinusitis, pulmonary
destructive sinusitis, pulmonary ... - Interstitial lung ... in absence of skin ... lesions BWH ... #diagnosis
Mediastinal Mass - Differential Diagnosis
Anterior Mediastinal Mass:
 • Thymus (Thymoma, carcinoma, hyperplasia, cyst)
 • Lymphoma
 •
Diagnosis Anterior ... Sarcoma, Metastatic Lung ... Thoracic spine lesions ... Potts disease) UCSD ... #Diagnosis #pulmonary
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Skin & Soft ... Nodular or cavitary lesions ... Diagnosis Of NTM ... Exclusion of other diagnosis ... NTM #Infections #differential
Scleroderma Like Conditions - Differential Diagnosis
Eosinophilic Fasciitis:
 - Orange peel induration (peau d'orange) of proximal extremities
Like Conditions - Differential ... Diagnosis Eosinophilic ... lesions, or localized ... #Diagnosis #comparison ... #table #dermatology
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... Diagnosis Framework ... • Polymorphic skin ... lesions (papules ... Infections #HIV #AIDS #pulmonary