53 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 ... CTChest #Cystic #Cysts ... Comparison #Table #RadiologyAssistant
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
microscopy • Red cell casts ... glomerular disease • Leukocytes ... • White cell casts ... infection • Hyaline casts ... disease • Granular casts
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 ... Comparison #Table #RadiologyAssistant
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 ... Comparison #Table #RadiologyAssistant
Causes of Dysuria - Differential Diagnosis Algorithm
Pyuria - Leukocytes on Dipstick/Microscopy
 - Bacteriuria & Hematuria -
Causes of Dysuria ... Algorithm Pyuria - Leukocytes ... Pyelonephritis - WBC Casts ... No Pyuria - No Leukocytes ... Diagnosis #Algorithm #Causes
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
-> AML: Blast crises ... • Blasts > 10% leukocytes ... Splenomegaly • ↑ Leukocyte ... Neutrophils • Immature/Myeloblasts ... AML Dx: • ↑ Leukocyte
Evaluation of Leukocytosis:
The term 'leukocyte' applies to any cells within the myeloblast, monoblast, & lymphoid lineages.
Include
Leukocytosis: The term 'leukocyte ... cells within the myeloblast ... precursor cells to leukocytes ... the underlying cause
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
• Ketones • Leukocyte ... • Urinary casts ... dipstick #nitrite #leucocyte-esterase ... #urine #UNa #casts
In a later stage the nodules start to cavitate and become cysts.
These cysts start as round
These cysts start ... of LCH. ... patients with LCH ... Radiology #CTChest #LCH ... Histiocytosis #Cavitary #RadiologyAssistant
Sarcoidosis
In this case the chest x-ray shows subtle findings that could be described as fine reticulation.
In
Sarcoidosis In this case ... In many cases a ... Interstitial #Pattern #RadiologyAssistant