25 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Nodular LCH: - Sarcoidosis ... Cystic LCH: - LAM ... : round cysts, evenly ... Diagnosis #Radiology #CTChest ... #Cystic #Cysts
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... LCH: multiple round ... bizarre shaped cysts ... Radiology #HRCT #CTChest
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
histiocytosis (LCH ... multiple thick walled cysts ... (LAM): regular cysts ... Radiology #HRCT #CTChest
Pancytopenia - Differential Diagnosis Algorithm
 • 12-13 g/dL,
 • ANC < 1800/uL,
 • platelet < 150,000/uL

Initial
Differential Diagnosis Algorithm ... /uL Initial Workup ... reticulocyte count, LFTs, LDH ... Differential #Diagnosis #Algorithm ... #hematology #workup
Diagnostic algorithm for a child or adolescent with suspected pulmonary hypertension. CHD, congenital heart disease; CPET,
Diagnostic algorithm ... hypertension; CXR, chest ... hypertension; PCH ... #Hypertension #Workup ... #Algorithm
Chest Pain - Diagnosis and Workup Algorithm

History and Exam
Acute life-threatening causes:
 • Acute myocardial infarction
 •
Chest Pain - Diagnosis ... and Workup Algorithm ... MatthewHoMD #Chest ... Pain #Diagnosis #Algorithm ... #workup
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Hemolysis - Diagnostic Algorithm ... • Increased LDH ... Hemolytic #Anemia #Algorithm ... Differential #Causes #Workup
Standardized Physical Abuse Guideline
<6 months of age
 • Social work consult
 • Skeletal survey
 • Head
age • Social work ... > 80, signs of chest ... if bruising or ICH ... Abuse #Guidelines #Workup
Primary Amenorrhea Differential Diagnosis Framework

Workup:
 • β-HCG, TSH and PRL
 • Breast Tanner Staging
 • FSH,
Diagnosis Framework Workup ... Staging • FSH, LH ... obgyn #gynecology #algorithm
Unintentional Weight Loss - History and Workup

Complete Physical Exam - Often overlooked components: Lymph nodes, Mental
- History and Workup ... screening • Chest ... X-ray (or chest ... HCV, LFTs, PSA, LDH ... Unintentional #Diagnosis #workup