51 results
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
leading into a lung ... • DDx: Septic ... infarction, mets to the lung ... Vessel #Sign #CT #Lung ... diagnosis #radiology #clinical
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
circumferential GGO • DDx ... sarcoidosis, mets to the lung ... Halo #Sign #CT #Lung ... diagnosis #radiology #clinical
Digital clubbing found in a 64 year old woman seen for pathological patellar fracture after a
shows a likely lung ... #fingernails #clinical ... #photo #pulmonary
Cotton Wool Spots

Caused by microinfarcts. Exploded ganglion cell axons extrude their axoplasm into retina. Long DDx:
Long DDx: hypertension ... ophthalmology #Clinical
Acute Purpura Fulminans Skin Rash on Physical Exam 
60 year old male ITP s/p splenectomy 
1d
Ddx? ... Ddx is very broad ... fulminans) and critical ... Fulminans #Skin #Rash #clinical ... #photo
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
tree pattern - long ... Pityriasis #rosea #clinical ... #dermatology #photo
Dacrocytes (tear drop cells) 
Other poikilocytes resemble a pear or teardrop. The narrow, tapered end
may be
tapered end may be long ... each of the above photos ... #Clinical #Path
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
of interstitial lung ... Organizing Pneumonia - Clinical ... Diagnosis: • Lung ... TBNA or Surgical lung ... Anti-dsDNA, ANCA COP DDX
Chronic Lymphocytic Leukemia - Summary

Cancer affecting lymphocytes/Mature B cell neoplasm
 • Lymphocytes accumulate in large numbers
Orange or Hep C Clinical ... Scoring system: DDX ... lymphocyte > 5000/microL ... Contamination, colitis DDX
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
affecting the lungs ... disease • DM DDX ... • Lymphoma • Lung ... • Progressive lung ... characteristic features Clinical