Diagnostic Sonography • B-Scan Eye Pathology Atlas
Retinoschisis
A structured ocular ultrasound case collection covering clear sonographically recognizable patterns of retinoschisis, with emphasis on retinal-layer configuration, smooth elevation, mobility, extent and associated retinal detachment.
Retinoschisis — Sonographic Morphology Index
01
Peripheral Retinoschisis
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02
Bullous / Dome-Shaped Retinoschisis
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03
Shallow / Flat Retinoschisis
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04
Multiloculated / Cystic Retinoschisis
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05
Posterior-Extending Retinoschisis
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06
Extensive Retinoschisis
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07
Retinoschisis with Coexisting Retinal Detachment
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Chapter 01 • Case Study
Peripheral Retinoschisis
01 Clinical History
Patient referred for B-scan evaluation of a peripheral retinal abnormality. Dynamic examination is performed to characterize the contour, mobility and posterior continuity of the suspected schitic change.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Location | Localized peripheral retinal-layer abnormality, generally away from the posterior pole. |
| Configuration | Smooth shallow-to-elevated contour suggesting separation of retinal layers. |
| Mobility | Limited mobility compared with a freely detached retina. |
| Dynamic assessment | The configuration remains comparatively stable with ocular movement. |
| Retina | Assess the remaining retina for a separate detachment component. |
04 Ultrasound Report
Localized peripheral retinal-layer elevation/splitting is demonstrated.
The abnormal contour is smooth with limited mobility on dynamic examination.
No definite freely mobile retinal detachment membrane is identified on the examined views.
05 Impression
Sonographic Impression
{impressions[i]}
06 Recommendation
{recommend[i]}
07 Learning Points
Assess the peripheral retinal contour in multiple planes.
Use mobility to distinguish schitic change from a freely detached membrane.
Trace the abnormality toward the posterior retina.
Do not diagnose a retinal break from B-scan alone.
Chapter 02 • Case Study
Bullous / Dome-Shaped Retinoschisis
01 Clinical History
Patient with a prominent smooth peripheral retinal elevation. B-scan is performed to assess the dome-shaped configuration and to distinguish it from a freely mobile retinal detachment membrane.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Configuration | Prominent smooth dome-shaped or bullous elevation. |
| Contour | Relatively regular curved contour without marked undulation. |
| Mobility | Usually limited compared with a detached mobile retina. |
| Architecture | Layer separation may be suggested by thickening or a double-contour appearance. |
| Dynamic response | The elevated configuration remains comparatively stable during ocular movement. |
04 Ultrasound Report
Smooth dome-shaped retinal-layer elevation is visualized.
The elevated contour demonstrates limited mobility during dynamic examination.
No definite freely mobile retinal membrane is demonstrated on the examined views.
05 Impression
Sonographic Impression
{impressions[i]}
06 Recommendation
{recommend[i]}
07 Learning Points
Recognize a smooth dome-like configuration.
Assess mobility dynamically.
Look for evidence of retinal-layer splitting.
Exclude a separate detached retinal membrane.
Chapter 03 • Case Study
Shallow / Flat Retinoschisis
01 Clinical History
Patient with subtle retinal contour abnormality and limited fundus visualization. High-quality dynamic B-scan is performed to assess a shallow retinal-layer elevation.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Elevation | Low-amplitude shallow elevation involving retinal layers. |
| Contour | Relatively smooth and flattened. |
| Mobility | Minimal or limited movement during dynamic examination. |
| Visibility | May require optimized gain and multiple scan planes. |
| Differential | A separate mobile retinal membrane should be excluded. |
04 Ultrasound Report
Subtle shallow retinal-layer elevation is noted.
The abnormal contour is smooth with limited mobility.
No definite freely mobile detached retinal membrane is identified on the examined views.
05 Impression
Sonographic Impression
{impressions[i]}
06 Recommendation
{recommend[i]}
07 Learning Points
Use adequate gain without obscuring subtle interfaces.
Perform dynamic examination.
Use more than one scan plane.
Recognize the limitations of ultrasound for subtle retinal-layer splitting.
Chapter 04 • Case Study
Multiloculated / Cystic Retinoschisis
01 Clinical History
Patient with a complex retinal-layer contour. B-scan demonstrates internal loculated/cystic spaces and is used to evaluate the overall architecture and mobility.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Internal architecture | Multiloculated or cystic-appearing spaces may be present within the elevated retinal-layer complex. |
| Contour | May appear thickened, irregular or compartmentalized. |
| Mobility | Overall configuration remains relatively immobile. |
| Layer appearance | Double-contour or split-layer appearance may be appreciable. |
| Retinal detachment | A separate mobile detached retinal component must be excluded. |
04 Ultrasound Report
Thickened retinal-layer complex with internal multiloculated/cystic configuration is demonstrated.
The abnormal complex demonstrates limited mobility.
The appearance favors retinal-layer splitting rather than a freely mobile retinal membrane.
05 Impression
Sonographic Impression
{impressions[i]}
06 Recommendation
{recommend[i]}
07 Learning Points
Look for internal compartmentalization rather than a simple single membrane.
Assess overall mobility.
Use multiple scan planes to demonstrate layered architecture.
Always evaluate for a separate retinal detachment.
Chapter 05 • Case Study
Posterior-Extending Retinoschisis
01 Clinical History
Patient with retinal-layer abnormality extending from the peripheral retina toward the posterior pole. Multiplanar dynamic scanning is performed to define the posterior extent.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Extent | Retinal-layer abnormality extends posteriorly from a more peripheral region. |
| Continuity | The abnormal contour should be followed through multiple scan planes. |
| Mobility | Limited mobility favors a schitic configuration. |
| Posterior pole | Assess whether the schitic change approaches or involves the posterior pole. |
| Coexisting RD | Look for a separate mobile retinal membrane. |
04 Ultrasound Report
Retinal-layer abnormality extends posteriorly toward the posterior pole.
The contour remains relatively smooth with limited mobility.
No definite separate freely mobile retinal detachment membrane is seen on the examined views.
05 Impression
Sonographic Impression
{impressions[i]}
06 Recommendation
{recommend[i]}
07 Learning Points
Trace the abnormality continuously toward the posterior pole.
Assess dynamic mobility throughout its course.
Do not assume posterior extension means retinal detachment.
Use multiplanar scanning to define extent.
Chapter 06 • Case Study
Extensive Retinoschisis
01 Clinical History
Patient with broad retinal involvement and limited fundus visualization. B-scan is performed to assess the extent and configuration of the abnormal retinal layers and to exclude associated detachment.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Extent | Broad retinal-layer involvement across multiple retinal sectors. |
| Configuration | May be shallow, elevated or irregularly thickened. |
| Mobility | Overall abnormal retinal-layer complex demonstrates limited mobility. |
| Continuity | Evaluate continuity through radial and transverse scan planes. |
| Complications | Assess for retinal detachment, vitreoretinal traction and other associated pathology. |
04 Ultrasound Report
Extensive retinal-layer elevation/splitting is demonstrated across multiple sectors.
The schitic configuration demonstrates limited mobility.
No definite separate freely mobile retinal detachment membrane is identified on the examined views.
05 Impression
Sonographic Impression
{impressions[i]}
06 Recommendation
{recommend[i]}
07 Learning Points
Define the full sonographic extent.
Use dynamic scanning to assess mobility.
Evaluate the posterior pole separately.
Search systematically for associated retinal detachment.
Chapter 07 • Case Study
Retinoschisis with Coexisting Retinal Detachment
01 Clinical History
Patient with suspected retinoschisis and a separate mobile retinal membrane on B-scan. Dynamic examination is performed to characterize the schitic and detached components independently.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Schitic component | Retinal-layer thickening/splitting with a relatively smooth, comparatively immobile configuration. |
| Detached component | A separate retinal membrane demonstrates greater mobility with dynamic ocular movement. |
| Relationship | The schitic and detached components should be traced separately. |
| Mobility | Different mobility characteristics help distinguish the components. |
| Optic disc | Assess retinal attachment to the optic disc when detachment is suspected. |
| Extent | Document involved sectors and posterior extent of the detached component. |
04 Ultrasound Report
Retinal-layer thickening/splitting compatible with a schitic component is demonstrated.
A separate mobile retinal membrane is also identified on dynamic examination.
The two components demonstrate different mobility characteristics.
05 Impression
Sonographic Impression
{impressions[i]}
06 Recommendation
{recommend[i]}
07 Learning Points
Identify and characterize the schitic component.
Identify the separate mobile retinal detachment component.
Use dynamic examination as a key discriminator.
Document extent and posterior attachment of the detached retina.
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