29 results
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
production -> Corneal ... conjunctiva and cornea ... blindness) • Corneal ... dryness of the cornea ... #symptoms
Principal features of Destructive and Irritative cortical lesions in right-handed individual

#Cortical #Cortex #Lesions #Features #Signs #Symptoms
#Cortical #Cortex ... Lesions #Features #Signs ... #Symptoms #Brain ... #Neurology #Diagnosis
Bell's palsy
There are many different causes of Facial Nerve Palsy. However, the commonest
cause of unilateral facial
Bell's palsy There ... of Facial Nerve Palsy ... Hyperacusis - Loss of Corneal ... #Neurology #Signs ... #Symptoms #Diagnosis
Keratoconus: Pathogenesis and Clinical Findings
Genetics
 • Family history of keratoconus
 • Ehlers-Danlos syndrome
 • Down, Turner,
Bilateral, asymmetric corneal ... degeneration, and cone-shaped ... / Symptoms / Complications ... • Corneal Opacities ... #Keratoconus #pathophysiology
Orbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Chemosis: Edema of the bulbar conjunctiva
b. Panopthalmitis: inflammation of all
Proptosis -> Exposes cornea ... -> Corneal drying ... Orbital #Cellulitis #pathophysiology ... ophthalmology #diagnosis #signs ... #symptoms
Types of Facial Paralysis - Peripheral vs Central Lesions

Facial weakness or paralysis may result either from
system between the cortex ... here by a Bell's palsy ... one side of the cortex—the ... both sides of the cortex ... #Neurology #Diagnosis
Clinical features of focal cortical brain lesions in a right-handed individual

Frontal, either:  
Intellectual impairment, 
Personality
recognition #Cortex ... #Localization #Symptoms ... #Signs #Diagnosis ... #Neurology
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
Differential Diagnosis Algorithm ... Contralateral motor cortex ... /Sub-Cortical (Corona ... #Hemiplegia #Neurology ... Differential #Diagnosis #Algorithm
Schizophrenia: Pathogenesis and Symptoms
Increased dopaminergic transmission in mesolimbic projection
-> Dopaminergic neurons here project into the limbic
Pathogenesis and Symptoms ... cause the Positive Symptoms ... into the cerebral cortex ... Schizophrenia #pathophysiology ... #signs #psychiatry
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
papilledema • Horner ... • Meningeal signs ... ) • Systemic symptoms ... and signs (e.g. ... #neurology #PHANTOMS