103 results
Representative X-ray appearance of a primary malignant bone tumor - Ewings Sarcoma
 • "Interrupted periosteal reaction
bone tumor - Ewings ... between bone and tumor ... (Ill-defined border ... around the bone tumor ... Ewings #Sarcoma #Radiology
Malignant Bone Tumors: Pathogenesis of X-ray appearance

 • Metastatic bone tumors (aka. cancerous cells from systemic
Malignant Bone Tumors ... between bone and tumor ... (Ill-defined border ... around the bone tumor ... #Radiology #Diagnosis
Primary Bone Tumors - Differential Diagnosis Algorithm 

Metastatic - Most common tumour in adults
 - Breast
Primary Bone Tumors ... Aggressive, Non-Malignant ... Aneurysmal Bone Cyst Malignant ... Leiomyosarcoma • Malignant ... Causes #Oncology #Radiology
Adnexal Masses - Benign vs Malignant Features on Ultrasound and MRI
Benign Features: 
B1- Unilocular 
B2- Presence
Masses - Benign vs Malignant ... Smooth multilocular tumor ... Irregular solid tumor ... multilocular-solid tumor ... ultrasound #MRI #radiology
Causes of Ovarian Mass - Differential Diagnosis Algorithm
Hyperplastic:
 • Polycystic ovary
 • Endometrioid cyst
Functional:
 • Follicular
Granulosa cell tumor ... Epithelial Malignant ... Cell Germ Cell Malignant ... Granulosa cell tumor ... • Krukenberg tumor
Mediastinal Mass - Differential Diagnosis Framework

Anterior Mediastinal Mass - 5T’s
 • Thymic neoplasm
 • Teratoma (or
other germ cell tumor ... Bronchogenic cyst/Tumor ... • Bronchogenic tumor ... Esophageal diverticula/tumor ... • Neurogenic tumor
Fibula Giant Cell Tumor - Ankle X-Ray 
Expansile lytic lesion in the epiphysis of the fibula
Fibula Giant Cell Tumor ... Fibula #GiantCell #Tumor ... XRay #clinical #radiology
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
allele of RB1 tumor ... second hit' -> Malignant ... allele of RB1 tumor ... second hit' -> Malignant
Vision Loss - Differential Diagnosis
Chronic: 
  - Cornea: Scarring, Edema
  - Lens: Cataracts
Chronic: - Cornea ... from pituitary tumor ... Painful: Keratitis, Corneal
Bone Lesion on X-Ray - Differential Diagnosis Algorithm 
Exostotic
 • Osteochondroma
Asymptomatic &/or Non-Active Bone Scam
 •
Osteoblastoma (may be malignant ... calcify &/or turn malignant ... • Giant Cell Tumor ... " appearance) Malignant ... #Bony #Mass #Tumor