Limits...
Multiple Sclerosis, Quadrantanopsia

Smirniotopoulos, M.D. JGSM - MedPix (2009)

View Article: MedPix Image - MedPix Case

Affiliation: Uniformed Services University

ABSTRACT

Diagnosis: Multiple Sclerosis, Quadrantanopsia

History: 42 y.o. combat fighter pilot c/o "blind spot" - sudden onset six days ago and lasted about four hours. Previous Hx of a similar episode several years ago.

Findings: • Lateral geniculate body - abnormal signal and enhancement • Additional periventricular lesions

Ddx: • Multiple sclerosis • Lyme disease • ADEM (Acute Disseminated Encephalomyelitis) • Sarcoidosis • Vasculitis (SLE, etc.)

Dxhow: Clinical Hx and response to steroid therapy

Exam: Right inferior quadrantanopsia on formal visual field testing G6PD deficiency

No MeSH data available.


Cutting the axons where they cross at the chiasm (e.g. pituitary tumors and craniopharyngioma) damages the lateral (temporal) perception - but preserves the medial (nasal) visual fields which do not cross.  This produces a constricted visual field - with both lateral edges (peripheral vision) cut off.  Patient's often describe this as "tunnel vision".
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=MPX1124&req=5

MPX1124_synpic60031: Cutting the axons where they cross at the chiasm (e.g. pituitary tumors and craniopharyngioma) damages the lateral (temporal) perception - but preserves the medial (nasal) visual fields which do not cross. This produces a constricted visual field - with both lateral edges (peripheral vision) cut off. Patient's often describe this as "tunnel vision".


Multiple Sclerosis, Quadrantanopsia

Smirniotopoulos, M.D. JGSM - MedPix (2009)

Cutting the axons where they cross at the chiasm (e.g. pituitary tumors and craniopharyngioma) damages the lateral (temporal) perception - but preserves the medial (nasal) visual fields which do not cross.  This produces a constricted visual field - with both lateral edges (peripheral vision) cut off.  Patient's often describe this as "tunnel vision".
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=MPX1124&req=5

MPX1124_synpic60031: Cutting the axons where they cross at the chiasm (e.g. pituitary tumors and craniopharyngioma) damages the lateral (temporal) perception - but preserves the medial (nasal) visual fields which do not cross. This produces a constricted visual field - with both lateral edges (peripheral vision) cut off. Patient's often describe this as "tunnel vision".

View Article: MedPix Image - MedPix Case

Affiliation: Uniformed Services University

ABSTRACT

Diagnosis: Multiple Sclerosis, Quadrantanopsia

History: 42 y.o. combat fighter pilot c/o "blind spot" - sudden onset six days ago and lasted about four hours. Previous Hx of a similar episode several years ago.

Findings: • Lateral geniculate body - abnormal signal and enhancement • Additional periventricular lesions

Ddx: • Multiple sclerosis • Lyme disease • ADEM (Acute Disseminated Encephalomyelitis) • Sarcoidosis • Vasculitis (SLE, etc.)

Dxhow: Clinical Hx and response to steroid therapy

Exam: Right inferior quadrantanopsia on formal visual field testing G6PD deficiency

No MeSH data available.