Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief πŸ‡΅πŸ‡­ πŸ‡ΊπŸ‡Έ - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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CNS Ring-Enhancing Lesions - Differential Diagnosis
 β€’ Infections: Cerebral abscess (bacterial, fungal, parasitic), Neurocysticercosis, Tuberculoma, Cerebral
Ring-Enhancing Lesions ... - Differential ... Diagnosis β€’ Infections ... #Differential # ... Diagnosis #neurology #radiology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 β€’ Toxoplasmosis (CD4 < 100)
 β€’ Other
Ring-Enhancing Lesions ... splenomegaly Other infections ... Infectious: ... #Brain #differential ... diagnosis #causes #radiology
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 β€’ Acute Infections: Lung abscess,
Lung Disease - Differential ... Emboli, Fungal Infection ... ): β€’ Chronic Infections ... Diagnosis #Algorithm #lesion ... #pulmonary #differential
MAGIC DR – a handy mnemonic used to remember the potential causes of a cerebral ring
ring enhancing lesion ... necrosis #Diagnosis #Radiology ... MAGICDR #DRMAGIC #Differential ... RingEnhancing #Lesions
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Infectious: Legionella ... spotted fever, Non-infectious ... ß-blockers, CNS lesions ... bradycardia #Causes #differential ... infectiousdiseases #table
Cutaneous manifestations associated with myelodysplastic syndrome
 β€’ Myeloid hemopathy with the most frequent skin lesions (20%)
frequent skin lesions ... β€’ Significant lesion ... β€’ Satellite Lesions ... Infectious manifestations ... myelodysplastic #syndrome #differential
CNS Ring-Enhancing Lesions - Differential Diagnosis Framework

Ring Completeness
 β€’ Incomplete: Demyelinating Disease
 β€’ Complete (MAGIC):
Ring-Enhancing Lesions ... - Differential ... Glioblastoma - Infection ... Ring #Enhancing #Lesions ... #Differential #
Bone Tumor Location within the Skeleton

Epiphysis: 
Only a few lesions are located in the epiphysis, so
: Only a few lesions ... chondroblastoma or an infection ... Enchondroma and infections ... Diaphysis #Epiphysis #Radiology ... #MSK #Differential
CENTRAL FACIAL / NASAL LESIONS
Bacteria:
 β€’ Leprosy (saddle nose deformity)
 β€’ Tuberculosis (lupus vulgaris)l
 β€’ Endemic
FACIAL / NASAL LESIONS ... Endemic treponemal infection ... Invasive mold infection ... Facial #Central #Lesions ... infectiousdiseases #differential
Diagram of different types of bone tumors that can occur around the knee on XRay -
- punched out lesions ... β€’ Aggressive lesion ... Diagnosis #Bony #Differential ... #Radiology #XRay ... #msk #lesions #