Green Flagellar Autofluorescence in Brown Algal Swarmers ...
MYSTERY RETINA 2016: INTERACTIVE DISCUSSION OF...
Transcript of MYSTERY RETINA 2016: INTERACTIVE DISCUSSION OF...
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MYSTERY RETINA 2016: INTERACTIVE DISCUSSION OF CHALLENGING CASES
Sharel Ongchin WAEPS April 1, 2016
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No financial disclosures
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Objectives
Describe several diagnostically challenging retina cases
Understand the signs and symptoms that lead to the correct diagnosis
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Introduction
Evaluation of the retina can provide information regarding the presence and severity of many systemic diseases.
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Normal Retina
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Common Retinal Disorders
Central Retinal Artery Occclusion
Central Retinal Vein Occclusion
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Diabetic Retinopathy
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Case 1
HPI: 59 year old African American male complaining of decreased vision in the right eye x 5 days
Meds: None POHx: None
Vision: OD: CF OS: 20/25
IOP: OD: 8 OS: 9
Anterior chamber:
OD: 2+ cell OS: 1+ cell
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Further testing?
Fluorescein angiogram
OCT
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So what do we know?
Inflammation
Chorioretinal process
UVEITIS
- Idiopathic
- Autoimmune
- Infectious
- Cancer
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Additional history
Not on any medications but….
Patient admits that he is HIV+, but not seeking medical care
Uveitis lab work-up done:
- positive for syphilis
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After treatment with IV penicillin:
Vision returned to 20/30 OD and 20/25 OS
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After IV penicillin treatment:
At initial presentation:
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Ocular Syphilis
The majority of cases have been among HIV-infected patients
Ocular syphilis can involve almost any eye structure (posterior uveitis, panuveitis, anterior uveitis, optic neuropathy, retinal vasculitis and interstitial keratitis)
All patients with syphilis should receive an HIV test if status is unknown or previously HIV-negative
Ocular syphilis should be managed according to treatment recommendations for neurosyphilis
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Case 2
30 year old female with no visual complaints
PMHx: Type 1 DM since age 4, dyslipidemia, anemia
Vision: 20/20 OU
IOP normal OU
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Investigations?
Diagnosis?
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Cholesterol (total): 313 mg/dL
Triglycerides: 1046.3 mg/dL (normal triglycerides <150 mg/dL)
No family history
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Lipaemia Retinalis
Manifestation of excess triglycerides in the bloodstream
It is directly related to the levels of plasma triglycerides exceeding 1000 mg/dl
Associated with types I, II, IV and V hyperlipoproteinemia
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Classification
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1 month later after cholesterol treatment
At presentation
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Complete recovery of fundus after treatment of hyperlipidemia
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Case 3 56 year old male referred for scars in both eyes. He
is otherwise asymptomatic
PMHx: None Meds: None
Vision 20/20 OU
IOP: OD: 10 OS: 9
Anterior chamber: WNL OU, quiet OU
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Thoughts?
Angioid streaks
Vasculitis
Pigmented paravenous retinochoroidal atrophy
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Pigmented paravenous retinochoroidal atrophy
Characterized by:
perivenous pigment clumps
peripapillary and radial zones of retinochoroidal atrophy distributed along the retinal veins
Patients are usually asymptomatic and the disease process is non-progressive or slow and subtly progressive
Commonly bilateral and symmetric
The cause of the condition is unknown
No treatment indicated
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Case 4
60 year old female with poor vision for 10+ years.
PMHx: Lupus, Rheumatoid Arthritis, Hypertension, Sjögren's Syndrome
POHx: Ambloypia OS, high myopia -18 D
Vision: OD: 20/60 OS: 20/400
IOP: OD: 13 OS: 12
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Poor scan quality due to -18 D
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Bull’s Eye Maculopathy
Differential diagnosis: Age-related macular degeneration Bardet-Biedl syndrome Benign concentric annular macular dystrophy Chloroquine/hydroxychloroquine maculopathy Cone dystrophy Cone-rod dystrophy Idiopathic central serous retinopathy Leber congenital amaurosis Lipofuscinosis Sorsby central areolar choroidal dystrophy Stargardt disease
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What’s the most likely cause in our patient?
Hydroxychloroquine (Plaquenil) Maculopathy
Our patient has history of Plaquenil use from 1982-2002) and ALSO chloroquine use (2002-2005).
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Hydroxychloroquine Retinopathy
Most influenced by daily dose, length of use, and cumulative dose over time.
Risk for toxicity is least with less than 6.5 mg/kg/day for hydroxychloroquine and 3 mg/kg/day for chloroquine
Patients are at low risk during the first 5 years of treatment. Cumulative use in excess of 250 grams increases the risk for toxic retinopathy
Other risk factors:
obesity, kidney or liver disease, older age, and other retinal disorders
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Flying Saucer Sign
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Treatment
No treatment
Medication cessation DOES NOT reverse retinopathy (in fact, the drug can still be detected in the blood and urine of patients 5 years after cessation of therapy)
Goal is prevention with early screening
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Case 5
67 yo male with sudden blurry vision x 2 days
Vision 20/200 OU
IOP wnl OU
Anterior segment : wnl OU, quiet OU
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Autofluorescence
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Diagnosis?
Serous Retinal Detachments
Central serous retinopathy
Age related macular degeneration
Lupus erythematosus
Choroidal ischemic disorders (such as accelerated hypertension and pre-eclampsia)
Choroidal tumors
Inflammatory disorders
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More history…
Patient was diagnosed with CMML (chronic myelomonocytic leukemia
Lumbar puncture showed evidence of CNS involvement with leukemic cells
Patient started treatment with chemotherapy
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Dec 2015
Feb 2016
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Treatment is aimed at treating his underlying malignancy
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Case 6
HPI: 31 year old male complaining of blurry vision in the right eye
POHx: Advanced glaucoma (on Cosopt, Lumigan, Iopidine)
Vision: OD: 20/40 OS: 20/20 IOP: OD: 14 OS: 15
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Dilated episcleral vessels
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Fluorescein Angiogram
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1 min 2 min
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4 min
Fluorescein angiography : early hyperfluorescence with persistence of hyperfluorescence through the late phases of the angiogram. The hyperfluorescent pattern is diffuse and corresponds with the tumor margins.
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ICG - early
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ICG - late
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ICG : rapid diffuse filling in early phases of the angiogram with intense persistence of hyperfluorescence into the late phases
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Thoughts?
Sturge Weber Syndrome
Port wine stain (facial angioma)
Choroidal Hemangioma
Glaucoma
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Sturge-Weber Syndrome
Classic signs: Port-wine stain Diffuse Choroidal hemangioma Dilated and tortuous episcleral vessels Seizures Glaucoma
Neuroimaging should be performed to evaluate for CNS angiomas (not malignant, but will cause local problems)
50% of patients will develop glaucoma, and 80% of patients may develop seizures
Glaucoma pathophysiology: Resistance to aqueous outflow due to elevated episcleral venous pressure vs. underlying angle anomaly
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Treatment of choroidal hemangioma
Diffuse choroidal hemangioma may be asymptomatic
Visual loss can occur secondary to refractive error, foveal distortion, and exudative retinal detachment
Observation may be appropriate for asymptomatic cases that lack subretinal fluid exudation
When visual loss occurs, therapy is aimed at inducing tumor atrophy, resolving exudative retinal detachment, and minimizing foveal distortion Radiotherapy Photodyndamic therapy
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Case 7
40 year old Caucasian male complaining of sudden onset blurry vision in the right eye. Describes constant circular blurred area, "like after image of bright light"
PMHx: None, but getting over the flu Meds: None
Vision: 20/20 OU
IOP: OD: 14 OS: 12
Anterior chamber: WNL OU, quiet OU
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Additional history
Patient recovering from recent “flu”
Described having a rash on his hands and feet, and blisters in his mouth
Thoughts?
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Unilateral Acute Idiopathic Maculopathy
Young healthy adults who developed sudden, severe, unilateral central visual loss after a flu-like illness
Exudative detachment of the macula overlying a grayish thickening of the RPE
Resolved spontaneously over a period of 3 to 6 weeks with near complete recovery of vision in all patients.
A residual RPE change is characteristic.
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Unilateral Acute Idiopathic Maculopathy
Possible relationship between coxackievirus (hand-foot-mouth disease) and UAIM has been hypothesized
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4 months later
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Case 8
22 year old female complaining of sudden decreased vision in the right eye
PMHx: None
Meds: None
Vision: OD: 20/40 OS: 20/30
IOP wnl OU
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Autofluorescence imaging
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Thoughts?
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1 month later
On presentation
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Presentation 1 month later
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Thoughts?
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MEWDS (Multiple Evanescent White Dot Syndrome)
Classic findings:
Sudden drop in visual acuity
Mostly young females
Small discrete white dots at RPE level
‘Grainy’ macula
ERG changes that reverse after episode
Condition rarely recurs
Vision returns without treatment
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Exact pathogenesis is unknown, but thought to be associated with a viral prodrome
Self-limited disease, with almost all patients regaining good visual acuity within 3-9 weeks
No treatment is recommended
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Fluorescein angiogram findings
Early punctate hyperfluorescence in a wreath-like pattern and late staining, in areas corresponding to the white dots
Retinal vascular sheathing and optic nerve staining may be seen in some patients with MEWDS
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Fundus Autofluorescence
• Hyperautofluorescent dots correlate with white dots seen on fundoscopy
• Even in the absence of white dots on examination, FAF can show characteristic hyperautofluorescent lesions.
• Recent reports suggest that FAF may be the most sensitive and practical ancillary test to detect MEWDS.
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Case 9
22 year old male previously followed for disc drusen. No visual complaints
PMHx: history of febrile seizure at age 2
POHx: low myopia, disc drusen diagnosed at age 5
Vision: 20/20 OU
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Thoughts?
Are these disc drusen?
Further testing?
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Any other tests?
Neuroimaging
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Diagnosis?
Tuberous Sclerosis
Our patient was found to have mutation in TSC2 gene
Renal scan was normal
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Tuberous Sclerosis
Rare genetic disease that causes noncancerous tumors to grow in many parts of the body
Often detected during infancy or childhood. Some people have such mild signs and symptoms that the condition isn't diagnosed until adulthood, or it goes undiagnosed.
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Tuberous Sclerosis
CNS
Seizures, development delay
Cutaneous
Ash leaf spots, adenoma sebaceum, shagreen patches
Other: cardiac rhabdomyoma, renal angiomyolipomas, periungual fibromas
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Conclusions
Recognizing normal from abnormal
We now have a multitude of imaging modalities to assist with diagnosis and treatment
Many retinal findings are nonspecific, but early recognition of these signs can help prevent ophthalmologic complications and vision loss
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Questions?