11 results
Tree-in-Bud Sign on Chest CT
 • Multiple centrilobular nodules arranged in a linear branching pattern.
 •
Tree-in-Bud Sign ... on Chest CT • ... linear branching pattern ... #CT #Lung #Pulmonary ... clinical #tree #bud
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Other tests: • CT ... o infection • Echocardiogram ... symptoms (not-optimal but ... CT ... • IF staining patterns
Rare Causes of Abdominal Pain
 • Hereditary Angioneurotic Edema - Recurrent visceral that may by swelling
the southern and eastern ... Mediterranean areas ... in the knee-to-chest ... Positive Carnett's sign ... #Pain #differential
Aortoenteric Fistula - Diagnosis and Management Summary
Epidemiology:
• Uncommon but life-threatening
• Most common site of bowel connection
duodenum Clinical Signs ... triad: Bleeding, abdominal ... , and palpable abdominal ... • Should be on differential ... • CT findings
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Face, upper back, chest ... associated with signs ... usually trunk but ... Christmas tree pattern ... dermatology #rash #differential
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Infections in HIV - Differential ... • CT: Halo sign ... lymphadenopathy, • Abdominal ... Infections #HIV #AIDS #pulmonary ... #differential #
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Bronchiectasis - Tree-in-bud ... enzymes, diarrhea, abdominal ... • Dyspnea, • Chest ... Imaging, high res CT ... NTM #Infections #differential
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
scan: the mosaic pattern ... Signs of fibrosis ... lower lung zones, but ... included in the differential ... Clinical #Radiology #CTChest
Handlebar Traumatic Injury 
Young girl presents to you after low energy, helmeted bicycle accident. Her vitals
She is sent to CT ... concern for blunt abdominal ... Severe abdominal ... Keep this injury pattern ... on your differential
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
The dominant pattern ... these non-specific CT ... there is a broad differential ... probably would be pulmonary ... Clinical #Radiology #CTChest