Diagnostic Sonography • B-Scan Eye Pathology Atlas
Vitreous Abscess
A structured ocular ultrasound case collection covering pathology-specific sonographic presentations of suspected vitreous abscess and endophthalmitis, including vitreous inflammatory opacification, dense debris, mobile echoes, focal collections, membranous change, choroidal involvement, retinal detachment and complex posterior-segment findings.
Vitreous Abscess — Sonographic Presentation Index
01
Mild / Early Vitreous Inflammatory Opacification
→
02
Diffuse Vitreous Opacification
→
03
Dense Vitreous Debris
→
04
Highly Mobile Vitreous Echoes
→
05
Localized / Focal Vitreous Collection
→
06
Membranous Vitreous Inflammation
→
07
Organizing Vitreous Membranes
→
08
Severe Vitreous Opacification with Poor Posterior Visualization
→
09
Vitreous Abscess with Choroidal Thickening
→
10
Vitreous Abscess with Choroidal Detachment
→
11
Vitreous Abscess with Retinal Detachment
→
12
Complex Endophthalmitis / Vitreous Abscess with Multiple Posterior Segment Findings
→
Chapter 01 • Case Study
Mild / Early Vitreous Inflammatory Opacification
01 Clinical History
Early intraocular inflammation is suspected clinically. B-scan demonstrates low-to-moderate level vitreous echoes within an otherwise recognizable vitreous cavity. Dynamic scanning is performed to document mobility and to assess the retina and choroid.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Vitreous echoes | Fine low-to-moderate reflective echoes are present within the vitreous cavity. |
| Distribution | The echoes are scattered rather than forming a large confluent collection. |
| Mobility | Vitreous echoes demonstrate movement with dynamic ocular examination. |
| Vitreous clarity | The normally anechoic vitreous is partially obscured by inflammatory echoes. |
| Retina / choroid | The retinal contour and choroidal thickness should be assessed for associated posterior-segment inflammation. |
04 Ultrasound Report
Fine-to-moderate vitreous echoes are identified within the vitreous cavity.
The echoes demonstrate mobility on dynamic examination.
The retinal contour is maintained without definite retinal detachment on the examined views.
05 Impression
Sonographic Impression
Mild vitreous inflammatory opacification; in the appropriate clinical setting, the appearance may be compatible with early endophthalmitis.
06 Recommendation
Urgent ophthalmic correlation is recommended when endophthalmitis is clinically suspected. Assess the retina and choroid independently.
07 Learning Points
Recognize low-to-moderate vitreous inflammatory echoes.
Confirm mobility dynamically.
Do not diagnose a vitreous abscess from echo density alone.
Assess the retina and choroid separately.
Chapter 02 • Case Study
Diffuse Vitreous Opacification
01 Clinical History
B-scan demonstrates widespread vitreous echogenicity involving most of the vitreous cavity. Dynamic examination is used to assess the degree of mobility and to determine whether the opacification is associated with membranes or posterior-segment complications.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Distribution | Vitreous echoes are distributed throughout a large portion of the cavity. |
| Echo level | The vitreous contains numerous low-to-moderate and variably brighter reflective echoes. |
| Mobility | The internal echoes demonstrate variable mobility with ocular motion. |
| Posterior visualization | Extensive opacification may reduce visualization of fine posterior-segment structures. |
| Retina | The retinal contour should be traced independently in multiple planes. |
04 Ultrasound Report
Diffuse vitreous echogenicity is present throughout the cavity.
The internal echoes demonstrate variable mobility on dynamic examination.
No definite retinal detachment is identified on the examined views.
05 Impression
Sonographic Impression
Diffuse vitreous inflammatory opacification; findings may be compatible with significant intraocular inflammation in the appropriate clinical setting.
06 Recommendation
Urgent ophthalmic assessment is recommended when infection is suspected. Evaluate the retina, choroid and vitreoretinal interface.
07 Learning Points
Assess the distribution of vitreous inflammatory echoes.
Use dynamic scanning to characterize mobility.
Look for associated membranes and posterior-segment complications.
Trace the retina independently.
Chapter 03 • Case Study
Dense Vitreous Debris
01 Clinical History
A markedly echogenic vitreous is seen with numerous internal reflective particles and debris. Dynamic scanning is performed to determine the mobility of the material and to distinguish it from fixed vitreoretinal membranes.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Density | Numerous reflective particles create dense internal vitreous echogenicity. |
| Configuration | The debris are predominantly particulate and heterogeneous rather than a single fixed membrane. |
| Mobility | The internal material demonstrates variable to marked movement with ocular motion. |
| Visualization | Dense debris can limit visualization of the posterior segment. |
| Retina | Multiple scan planes are required to exclude retinal detachment. |
04 Ultrasound Report
Dense heterogeneous vitreous debris are present.
The internal echoes demonstrate mobility on dynamic examination.
The retinal contour is separately assessed without definite detachment on the examined views.
05 Impression
Sonographic Impression
Dense vitreous inflammatory debris, compatible with severe intraocular inflammation; correlate clinically for endophthalmitis.
06 Recommendation
Urgent ophthalmic correlation is recommended. Carefully assess the retina and choroid because dense vitreous debris may obscure posterior structures.
07 Learning Points
Recognize heavy vitreous inflammatory debris.
Use mobility to distinguish debris from fixed membranes.
Do not equate dense echoes with retinal detachment.
Use multiplanar scanning.
Chapter 04 • Case Study
Highly Mobile Vitreous Echoes
01 Clinical History
Dynamic B-scan demonstrates multiple suspended vitreous echoes that move conspicuously after ocular motion. The retinal surface is followed separately throughout the examination.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Mobility | Multiple vitreous echoes show conspicuous movement after ocular motion. |
| Distribution | The echoes remain suspended within the vitreous cavity rather than being fixed to the retinal surface. |
| Reflectivity | The echoes range from low-to-moderate to bright reflective foci. |
| Configuration | Individual echoes may disperse and redistribute during dynamic scanning. |
| Retina | The retina should remain separately traceable from the mobile vitreous contents. |
04 Ultrasound Report
Multiple mobile vitreous echoes are identified.
The echoes redistribute with dynamic ocular movement.
No definite retinal detachment is identified on the examined views.
05 Impression
Sonographic Impression
Markedly mobile vitreous inflammatory echoes; in the appropriate clinical setting, compatible with significant vitritis/endophthalmitis.
06 Recommendation
Correlate urgently with ophthalmic examination when infection is suspected. Ensure that mobile vitreous echoes are not mistaken for retinal detachment.
07 Learning Points
Mobility is an important sonographic discriminator.
Follow the retina independently.
Compare static and dynamic appearances.
Correlate the ultrasound pattern with the clinical examination.
Chapter 05 • Case Study
Localized / Focal Vitreous Collection
01 Clinical History
B-scan demonstrates a localized region of increased vitreous echogenicity forming a focal inflammatory collection. Dynamic examination assesses the internal mobility and its relationship to adjacent vitreoretinal structures.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Localization | A focal region contains greater vitreous echogenicity than the surrounding cavity. |
| Internal echoes | The focal material contains particulate and heterogeneous reflective echoes. |
| Mobility | Internal components may demonstrate variable mobility. |
| Margins | The focal collection may have indistinct or irregular margins within the vitreous. |
| Retina | The adjacent retinal contour must be assessed independently. |
04 Ultrasound Report
A focal region of increased vitreous echogenicity is identified.
Internal echoes demonstrate variable mobility.
The adjacent retinal contour is maintained without definite detachment on the examined views.
05 Impression
Sonographic Impression
Localized focal vitreous inflammatory collection; vitreous abscess may be considered in the appropriate clinical context.
06 Recommendation
Urgent ophthalmic correlation is recommended. Evaluate the focal collection, adjacent retina and choroid.
07 Learning Points
A focal echogenic vitreous collection can be clinically important.
Assess internal mobility rather than relying on brightness alone.
Trace the adjacent retina.
Use clinical context to support the diagnosis.
Chapter 06 • Case Study
Membranous Vitreous Inflammation
01 Clinical History
B-scan shows inflammatory vitreous material with linear and membranous echoes extending within the cavity. Dynamic examination evaluates membrane mobility, attachment and the possibility of associated retinal or choroidal pathology.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Membranes | Linear or sheet-like reflective structures are present within the vitreous. |
| Mobility | The membranes may demonstrate variable movement with ocular motion. |
| Attachment | Their relationship to the posterior wall and vitreoretinal interface is assessed in multiple planes. |
| Vitreous debris | Additional particulate echoes may coexist with the membranes. |
| Retina / choroid | The retina and choroid must be evaluated separately for detachment or thickening. |
04 Ultrasound Report
Membranous and particulate vitreous echoes are present.
The membranous structures demonstrate variable mobility.
No definite retinal detachment is identified on the examined views.
05 Impression
Sonographic Impression
Membranous vitreous inflammatory change with associated vitreous debris; correlate for endophthalmitis and exclude retinal detachment.
06 Recommendation
Urgent ophthalmic assessment is recommended. Carefully distinguish inflammatory vitreous membranes from retinal or choroidal detachment.
07 Learning Points
Membranes require multiplanar assessment.
Determine mobility and posterior-wall relationship.
Do not label every membrane as retinal detachment.
Look for associated vitreous debris and choroidal changes.
Chapter 07 • Case Study
Organizing Vitreous Membranes
01 Clinical History
Follow-up B-scan demonstrates persistent vitreous inflammatory material with partially organized membranes and reduced internal mobility. The examination evaluates whether the structures remain within the vitreous or are attached to the retinal surface.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Organization | Vitreous inflammatory material forms partially organized linear or sheet-like structures. |
| Internal echoes | Residual particulate echoes may remain within or around the membranes. |
| Mobility | Mobility is reduced compared with freely suspended vitreous debris. |
| Configuration | The membranes may appear irregular and may change configuration with eye movement. |
| Retinal relationship | The retinal contour must be followed separately to exclude traction or detachment. |
04 Ultrasound Report
Partially organized vitreous membranes are identified with residual internal echoes.
The membranes show limited/variable mobility.
The retina is separately visualized without definite detachment on the examined views.
05 Impression
Sonographic Impression
Organizing vitreous inflammatory membranes; correlate clinically for established or treated intraocular infection and assess for vitreoretinal complications.
06 Recommendation
Ophthalmic follow-up is recommended. Evaluate the vitreoretinal interface and retina carefully for traction or detachment.
07 Learning Points
Organization can reduce membrane mobility.
Assess attachment in multiple planes.
Look for residual vitreous debris.
Exclude associated retinal pathology.
Chapter 08 • Case Study
Severe Vitreous Opacification with Poor Posterior Visualization
01 Clinical History
B-scan demonstrates extensive vitreous echogenicity with marked loss of normal vitreous clarity. Because posterior structures are partly obscured, multiplanar dynamic scanning is performed to evaluate the retina and choroid.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Vitreous clarity | Normal anechoic vitreous is extensively replaced by reflective inflammatory material. |
| Echo burden | Numerous echoes create marked vitreous echogenicity. |
| Posterior visualization | Dense opacification limits visualization of fine posterior-segment structures. |
| Mobility | Internal echoes demonstrate variable mobility. |
| Retina / choroid | The retina and choroid require systematic multiplanar assessment despite limited visualization. |
04 Ultrasound Report
Severe vitreous opacification with extensive internal echogenicity is present.
Dynamic examination demonstrates variable mobility of the internal echoes.
Posterior visualization is limited; no definite retinal detachment is identified where adequately visualized.
05 Impression
Sonographic Impression
Severe vitreous inflammatory opacification with limited posterior visualization; urgent clinical correlation is required when endophthalmitis is suspected.
06 Recommendation
Urgent ophthalmic assessment is recommended. Repeat or targeted B-scan as clinically indicated to assess obscured retinal and choroidal structures.
07 Learning Points
Recognize when vitreous opacity limits posterior assessment.
Use multiple planes and dynamic scanning.
State visualization limitations in the report.
Do not exclude retinal detachment solely because it is not clearly seen.
Chapter 09 • Case Study
Vitreous Abscess with Choroidal Thickening
01 Clinical History
B-scan demonstrates marked vitreous inflammatory echoes accompanied by thickening of the posterior choroid. The retina is assessed separately for associated detachment.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Vitreous | Numerous inflammatory echoes and debris are present within the vitreous. |
| Choroid | The posterior choroid appears thickened compared with the expected contour. |
| Mobility | Vitreous echoes demonstrate variable mobility. |
| Posterior wall | The choroid/retina complex is assessed for contour and separation. |
| Retina | No definite retinal detachment is identified unless separately demonstrated. |
04 Ultrasound Report
Marked vitreous inflammatory echogenicity is present.
Associated posterior choroidal thickening is identified.
The retinal contour is separately assessed without definite detachment on the examined views.
05 Impression
Sonographic Impression
Vitreous inflammatory change with choroidal thickening, a posterior-segment finding that may accompany endophthalmitis.
06 Recommendation
Urgent ophthalmic correlation is recommended. Assess the extent of choroidal involvement and carefully evaluate for retinal detachment.
07 Learning Points
Choroidal thickening may accompany severe intraocular inflammation.
Assess the posterior wall in multiple planes.
Separate choroidal changes from retinal detachment.
Correlate with the clinical picture.
Chapter 10 • Case Study
Vitreous Abscess with Choroidal Detachment
01 Clinical History
B-scan demonstrates vitreous inflammatory echoes with an elevated choroidal membrane. Dynamic multiplanar scanning is used to distinguish choroidal detachment from retinal detachment and to assess its extent.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Vitreous | Marked inflammatory vitreous echoes/debris are present. |
| Choroidal detachment | The choroid is elevated from the posterior wall, producing a smooth peripheral membrane configuration. |
| Mobility | Vitreous inflammatory echoes remain variably mobile. |
| Distribution | The choroidal elevation may be localized or involve multiple quadrants. |
| Retina | The retinal contour must be traced independently to assess for coexisting detachment. |
04 Ultrasound Report
Vitreous inflammatory echoes are associated with an elevated choroidal membrane.
The choroidal detachment is characterized in multiple planes.
The retina is separately assessed for coexisting retinal detachment.
05 Impression
Sonographic Impression
Vitreous inflammatory change with associated choroidal detachment; correlate urgently for severe intraocular inflammation/endophthalmitis.
06 Recommendation
Urgent ophthalmic assessment is recommended. Define the extent of choroidal detachment and evaluate the retina independently.
07 Learning Points
Choroidal detachment is distinct from retinal detachment.
Characterize the configuration and extent of choroidal elevation.
Use multiple scan planes.
Assess for simultaneous retinal detachment.
Chapter 11 • Case Study
Vitreous Abscess with Retinal Detachment
01 Clinical History
Dense vitreous inflammatory echoes are accompanied by an elevated retinal membrane. Dynamic multiplanar examination is performed to confirm the retinal origin and characterize the configuration and extent of detachment.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Vitreous | Dense inflammatory echoes/debris are present within the vitreous cavity. |
| Retinal membrane | A reflective membrane is elevated from the posterior wall and is followed toward its attachment points. |
| Mobility | The detached retina may show characteristic movement distinct from free vitreous debris. |
| Configuration | The detachment may be localized, extensive or funnel-shaped depending on severity. |
| Macula | Macular status should be correlated clinically when it cannot be determined sonographically. |
04 Ultrasound Report
Dense vitreous inflammatory echoes are associated with an elevated retinal membrane compatible with retinal detachment.
The detached retinal contour is traced in multiple planes.
The extent and configuration of detachment are documented.
05 Impression
Sonographic Impression
Vitreous inflammatory change with associated retinal detachment; in the appropriate clinical setting, this represents a complex posterior-segment complication.
06 Recommendation
Urgent ophthalmic assessment is recommended. Characterize the retinal detachment configuration and correlate macular status clinically when possible.
07 Learning Points
Trace the detached retina in multiple planes.
Distinguish the retina from mobile vitreous debris.
Document extent and configuration.
Macular status may require clinical correlation.
Chapter 12 • Case Study
Complex Endophthalmitis / Vitreous Abscess with Multiple Posterior Segment Findings
01 Clinical History
Complex B-scan demonstrates extensive vitreous inflammatory echogenicity with mobile debris, membranous components and associated posterior-segment abnormalities. The examination systematically evaluates the vitreous, retina, choroid and vitreoretinal interface.
02 Ultrasound Image
03 Ultrasound Morphology
| Feature | Sonographic Description |
|---|---|
| Vitreous | Extensive heterogeneous inflammatory echogenicity with particulate and membranous components. |
| Mobility | Different internal components show variable degrees of mobility. |
| Membranes | Linear or organized vitreous membranes may coexist with mobile debris. |
| Choroid | Choroidal thickening or detachment may be present and should be specifically assessed. |
| Retina | Retinal detachment or other vitreoretinal complications must be excluded in multiple planes. |
04 Ultrasound Report
Complex heterogeneous vitreous inflammatory echogenicity with mobile debris and membranous components is present.
Associated posterior-segment structures are systematically assessed for choroidal and retinal complications.
The examination documents any visualized detachment or states limitations where structures are obscured.
05 Impression
Sonographic Impression
Complex posterior-segment inflammatory process compatible with severe endophthalmitis/vitreous abscess in the appropriate clinical setting, with associated findings to be correlated clinically.
06 Recommendation
Urgent ophthalmic evaluation is required. Assess and document the retina, choroid and vitreoretinal interface; correlate immediately with clinical findings.
07 Learning Points
Approach complex infection component by component.
Assess distribution, mobility, organization and posterior-wall involvement.
Do not confuse mobile vitreous debris with retinal detachment.
Report important visualization limitations and associated complications.
×
![Ultrasound enlarged image]()
No comments:
Post a Comment