128 results
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
Causes of Dizziness ... vomiting, auditory symptoms ... unidirectonal nystagmus ... symptoms/signs, ... bidirectional nystagmus
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
Parinaud's Syndrome ... Convergence retraction nystagmus ... retraction (Collier's sign ... → "setting sun sign ... diagnosis #pineal #neurology
Convergence Retraction Nystagmus with a left 6th nerve palsy

Caused by a Midbrain hemorrhage

Dr. Boby Varkey Maramattom
Convergence Retraction Nystagmus ... nerve palsy Caused ... Convergence #retraction #nystagmus ... #ocular #physicalexam ... clinical #video #neurology
Budd Chiari Syndrome
Hepatic vein obstruction. Can be caused by thrombosis or sometimes a tumour. Can lead
Budd Chiari Syndrome ... Can be caused by ... #BuddChiari #Syndrome ... #Diagnosis #Causes ... #Signs #Symptoms
Marfan Syndrome - Signs and Symptoms

- Caused by mutations in the fibrillin-1 (FBN1) Gene (chromosome 15)
-
Marfan Syndrome ... - Signs and Symptoms ... - Caused by ... #Diagnosis #Signs ... #Symptoms
HINTS Exam - Bidirectional Nystagmus 

In a patient with vertigo symptoms, this finding is worrisome for
Bidirectional Nystagmus ... patient with vertigo symptoms ... for a CENTRAL cause ... #HINTS #PhysicalExam ... Video #Positive #Neurology
Clinical Manifestations of Serotonin Syndrome
 • Ophthalmologic: Mydriasis, Ocular clonus (slow horizontal movements)
 • Gastrointestinal: Diarrhea,
Manifestations of Serotonin Syndrome ... Ophthalmologic: Mydriasis, Ocular ... Cardiovascular and vital sign ... #Symptoms #spectrum ... #signs #diagnosis
Parinaud's syndrome
What?
 • Light-near dissociation (tectal pupils)
 • Convergence retraction nystagmus
 • Eyelid retraction (Collier's sign)
Parinaud's syndrome ... Convergence retraction nystagmus ... retraction (Collier's sign ... "setting sun" sign ... #neurology #diagnosis
HINTS Exam - Unidirectional Nystagmus - Left-beating

In a patient with vertigo symptoms, this finding is reassuring
Unidirectional Nystagmus ... patient with vertigo symptoms ... for a PERIPHERAL cause ... #HINTS #PhysicalExam ... Video #Negative #Neurology
Iridodonesis

Physical examination revealed iridodonesis, or “dancing” of the iris, which was elicited by rapid movement of
movement, is a sign ... characteristic sign ... with Marfan’s syndrome ... Ophthalmology #Signs ... #Ocular