16 results
Primary Bone Tumors - Differential Diagnosis Algorithm 

Metastatic - Most common tumour in adults
 - Breast
Primary Bone Tumors ... in adults - Breast ... • Aneurysmal Bone ... Histiocytoma #Primary #Bone ... #Bony #Tumors #
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Differential Diagnosis Algorithm ... Solid Tumors: Lung ... renal, Bladder, Breast ... Miscellaneous - Bone ... Hyperthyroid, Bony
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... low attenuation areas ... #Clinical #Radiology ... #Pattern #Comparison ... #Table #RadiologyAssistant
Malignant Bone Tumors: Pathogenesis of X-ray appearance

 • Metastatic bone tumors (aka. cancerous cells from systemic
Malignant Bone Tumors ... • Metastatic bone ... metastasis: • Breast ... • Lung. thvroid ... BoneTumors #Malignant #Radiology
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... low attenuation areas ... #Clinical #Radiology ... #Pattern #Comparison ... #Table #RadiologyAssistant
Osteoarthritis (OA): X-ray features 
 - Joint space narrowing (least specific)
 - Subchondral Cysts (pockets of
- Subchondral Cysts ... Osteophytes (Abnormal bone ... (Thickening of bone ... directly under the areas ... of bone-bone contact
Hypercalcemia of Malignancy - Pathophysiology
PTH-mediated
 • Parathyroid cancer
 • Ectopic production: Small cell lung cancer, ovarian
production: Small cell lung ... resorption in the bone ... resorption in the bone ... , Renal Cell, Breast ... Differential #Diagnosis #algorithm
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Differential Diagnosis Algorithm ... Breast, Kidney, ... Lung) • Cytokine-Mediated ... Bone Resorption ... Lymphomas) Metastatic Bone
Cystic lung disease
Lung cysts are defined as radiolucent areas with a wall thickness of less than
Cystic lung disease ... Lung cysts are ... as radiolucent areas ... Cystic lung diseases ... as radiolucent areas
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
terms to describe areas ... , like cyst, cavity ... is to describe areas ... #Differential #Table ... #Diagnosis #Radiology