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Diagram of different types of bone tumors that can occur around the knee on XRay -
- punched out lesions ... • Aggressive lesion ... - lytic metastasis ... Lymphoma or blastic metastatic ... lesion • Geode
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
other aggressive lesion ... - punched out lesions ... - lytic metastasis ... Lymphoma or blastic metastatic ... lesion • Geode
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Ring-Enhancing Lesions ... Ring-Enhancing Lesions ... syndrome + MRI lesions ... present w/ CNS lesions ... Glioblastoma • Metastatic
MAGIC DR – a handy mnemonic used to remember the potential causes of a cerebral ring
ring enhancing lesion ... M – Metastasis ... RingEnhancing #Lesions
Malignant Bone Tumors: Pathogenesis of X-ray appearance

 • Metastatic bone tumors (aka. cancerous cells from systemic
appearance • Metastatic ... • Metastatic ... the source of metastasis ... radio-dense" (sclerotic lesions ... radio-lucent" (osteolytic lesions
CNS Ring-Enhancing Lesions - Differential Diagnosis Framework

Ring Completeness
 • Incomplete: Demyelinating Disease
 • Complete (MAGIC):
Ring-Enhancing Lesions ... - Malignancy / Metastasis ... Ring #Enhancing #Lesions
Neuro-OphthaImoIogy - Visual Field Defects - Localization Map
 - Optic Nerve Lesion (Monocular vision loss)
 -
- Optic Nerve Lesion ... - Optic Chiasm Lesion ... • Pituitary/metastatic ... - Meyer's Loop Lesion ... Parietal Lobe Lesion
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
Primary lung cancer, Metastatic ... Diagnosis #Algorithm #lesion
Cavity Mnemonic for Cavitary Pulmonary Lesions:
C: cancer 
 - bronchogenic carcinoma: most frequently squamous cell carcinoma
Cavitary Pulmonary Lesions ... cavitary pulmonary metastasis ... Mnemonic #Cavitary #Lesions
Appearance of Liver Lesions on Computed Tomography (CT) - Arterial Phase, Portal Venous Phase and Delayed
Appearance of Liver Lesions ... embryonal sarcoma, Metastasis ... #Liver #Lesions