48 results
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
gene mutated in all ... Retinoblastoma Signs ... Retinoblastoma #pathophysiology ... #ophthalmology ... #diagnosis #signs
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
Bilateral B-Lines ... Differential Bilat ... Also has partially ... seen shred sign ... Bilateral B-lines
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
: - Catch-all term ... lesions may start as ... - Pathophysiology ... Ill-appearing, vital sign ... Targetoid #Algorithm #Differential
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
Compression/injury of Lateral ... are typically unilateral ... MeralgiaParesthetica #MSK #pathophysiology ... #differential # ... diagnosis #signs
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
and Headache - Differential ... headache: - Bilateral ... meningeal irritation signs ... Photophobia #Headache #differential ... #diagnosis #ophthalmology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
sclerosis Pathophysiology ... of UMN and LMN signs ... of UMN and LMN signs ... EMG: LMN Signs in ... conditions listed in differential
Intermittent Bilateral Exophthalmos (Alternating Exophthalmos and Enophthalmos) on Physical Exam

Observing this patient in silence for a
Existing case reports ... this patient- bilateral ... There was also right ... Differentials for ... clinical #video #ophthalmology
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
lumbar spine Signs ... not have to be bilateral ... • As soon as ... Syndrome #MSK #pathophysiology ... diagnosis #symptoms #signs
Floaters - Differential Diagnosis Framework

What?
Vitreous Floaters:
• Microscopic collagen fibers within the vitreous that tend to clump
Floaters - Differential ... : • Black spots ... the vision • Spots ... #Floaters #Differential ... Diagnosis #Ocular #ophthalmology
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
conjunctiva) • Bitot's spots ... #Xeropthalmia #pathophysiology ... #ophthalmology ... #diagnosis #signs