logging in or signing up CT scan eye slide presentation akharester Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 184 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: January 21, 2011 This Presentation is Public Favorites: 0 Presentation Description imaging eye lesion Comments Posting comment... Premium member Presentation Transcript Imaging eye lesion : Imaging eye lesion DR. Rekha Khare M.D. Radiology Common clinical problem to image : Common clinical problem to image PROPTOSIS Proptosis : Proptosis It is abnormal protrusion of eye ball _unilateral _bilateral Causes of proptosis : Causes of proptosis V_ vascular ( av malformation ) E_ endocrinal ( thyrotoxicosis ) I_ Infection/ inflammation N_ neoplasm ( primary/ secondary ) ( local/ intracranial ) Imaging modality : Imaging modality Plain X- ray_ no value Ultrasound_ little help CT scan MRI scan CT versus MRI : CT versus MRI MRI_ superb tissue contrast choice of imaging if available and affordable Contd. : Contd. CT scan_ -tissue contrast just comparable -easily affordable and available -easy assessment of PNS/ nasal cavity and or bone involvement -intracranial extension “Common diagnostic tool in routine” What to see on CT scan? : What to see on CT scan? eye ball eye muscles ( extra ocular ) retro bulbar space optic nerve bony socket adjoining paranasal sinus/ nasal cavity intracranial tissue Eye image on CT scan : Eye image on CT scan Eye mass_ proptosis : Eye mass_ proptosis Ring enhanced cystic lesion in Rt. retro bulbar region ? abscess (HIV+ve) Eye mass_ proptosis : Eye mass_ proptosis Ring enhanced lesion in retro bulbar region + ethmoidal sinusitis ? abscess Eye mass_ proptosis : Eye mass_ proptosis Retrobulbar mass nature? Eye mass_ Proptosis : Eye mass_ Proptosis Homogenous enhanced few calcification obscuring optic nerve ? Meningioma Same case : Same case Retrobulbar mass compressing extraocular muscles deforming eye ball Proptosis : Proptosis Thick extraocular muscles and Optic nerve (HIV+ve case) ? Lymphoma D/D thyrotoxicosis ( fusiform muscles) Thyrotoxicosis : Thyrotoxicosis fusiform extraocular muscle Same case : Same case Thyrotoxicosis Eye mass_ proptosis : Eye mass_ proptosis Soft tissue mass obscuring optic nerve infiltrating lat. muscle ? Optic nerve sheath meningioma Eye mass_ proptosis : Eye mass_ proptosis Enhanced mass medial retrobulbar region displacing optic nerve? pseudo- tumour Eye mass_ proptosis : Eye mass_ proptosis Enhanced mass from extraocular muscle? Lymphoma? ?Rhabdomyosarcoma Eye mass_ proptosis : Eye mass_ proptosis Heterogenous enhanced mass filling retrobulbar region, deforming eye ball? Malignant mass Extra orbital lesions : Extra orbital lesions Lesions can cause proptosis if from paranasal sinus/ nasal cavity or intracranial mass extension or bones in surrounding Proptosis _ post. op case : Proptosis _ post. op case Intracranial mass/ abscess with bone destruction Check next slice Same case : Same case Extracerebral mass/abscess drainage done aggressive infection gone deep Proptosis : Proptosis Calcific density mass Rt. Retrobulbar pushing eye ball anteriorly ? Congenital bony Dysplasia Proptosis : Proptosis Extra orbital midline malignant mass from base of skull Paranasal sinus : Paranasal sinus Nonenhanced expansile cystic mass lesion in Rt. frontal sinus ? mucocele Paranasal sinus : Paranasal sinus Nonenhanced expansile cystic mass lesion in Rt. frontal sinus ? mucocele Paranasal sinus : Paranasal sinus Frontal mucocele Paranasal sinus : Paranasal sinus Huge soft tissue mass displacing and compressing eye ball ? ethmoidal mucocele Paranasal Sinus : Paranasal Sinus Ethmoidal mucocele Paranasal sinus : Paranasal sinus Nonenhanced expansile cystic lesion in sphenoidal sinus ?mucocele might cause proptosis if huge Paranasal sinus_ mass : Paranasal sinus_ mass Paranasal sinus mass extending orbital fossa Other paranasal sinus lesion : Other paranasal sinus lesion Few paranasal sinus lesions might cause eye problem or proptosis if the lesion is severe Paranasal sinuses : Paranasal sinuses Thin wall enhanced lobulated cystic mass in both maxillary sinuses ? Mucosal cyst Paranasal sinuses : Paranasal sinuses Air fluid level in Rt. Maxillary sinus ? sinusitis Paranasal sinuses : Paranasal sinuses Irregular mucosal thickening Lt. maxillary sinus Calcified mucosa Rt. Maxillary sinus ? Chronic sinusitis Mass face : Mass face Mass Rt maxillary antrum, filling nasal cavity, crossing midline ? malignancy Mass face : Mass face Advance malignancy Rt. maxillary antrum Intracranial mass : Intracranial mass well enhanced suprasellar mass involving Rt. Optic nerve? meningioma Same case : Same case Huge mass with hydrocephalus AVM : AVM dilated sup. Ophth.vein You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
CT scan eye slide presentation akharester Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 184 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: January 21, 2011 This Presentation is Public Favorites: 0 Presentation Description imaging eye lesion Comments Posting comment... Premium member Presentation Transcript Imaging eye lesion : Imaging eye lesion DR. Rekha Khare M.D. Radiology Common clinical problem to image : Common clinical problem to image PROPTOSIS Proptosis : Proptosis It is abnormal protrusion of eye ball _unilateral _bilateral Causes of proptosis : Causes of proptosis V_ vascular ( av malformation ) E_ endocrinal ( thyrotoxicosis ) I_ Infection/ inflammation N_ neoplasm ( primary/ secondary ) ( local/ intracranial ) Imaging modality : Imaging modality Plain X- ray_ no value Ultrasound_ little help CT scan MRI scan CT versus MRI : CT versus MRI MRI_ superb tissue contrast choice of imaging if available and affordable Contd. : Contd. CT scan_ -tissue contrast just comparable -easily affordable and available -easy assessment of PNS/ nasal cavity and or bone involvement -intracranial extension “Common diagnostic tool in routine” What to see on CT scan? : What to see on CT scan? eye ball eye muscles ( extra ocular ) retro bulbar space optic nerve bony socket adjoining paranasal sinus/ nasal cavity intracranial tissue Eye image on CT scan : Eye image on CT scan Eye mass_ proptosis : Eye mass_ proptosis Ring enhanced cystic lesion in Rt. retro bulbar region ? abscess (HIV+ve) Eye mass_ proptosis : Eye mass_ proptosis Ring enhanced lesion in retro bulbar region + ethmoidal sinusitis ? abscess Eye mass_ proptosis : Eye mass_ proptosis Retrobulbar mass nature? Eye mass_ Proptosis : Eye mass_ Proptosis Homogenous enhanced few calcification obscuring optic nerve ? Meningioma Same case : Same case Retrobulbar mass compressing extraocular muscles deforming eye ball Proptosis : Proptosis Thick extraocular muscles and Optic nerve (HIV+ve case) ? Lymphoma D/D thyrotoxicosis ( fusiform muscles) Thyrotoxicosis : Thyrotoxicosis fusiform extraocular muscle Same case : Same case Thyrotoxicosis Eye mass_ proptosis : Eye mass_ proptosis Soft tissue mass obscuring optic nerve infiltrating lat. muscle ? Optic nerve sheath meningioma Eye mass_ proptosis : Eye mass_ proptosis Enhanced mass medial retrobulbar region displacing optic nerve? pseudo- tumour Eye mass_ proptosis : Eye mass_ proptosis Enhanced mass from extraocular muscle? Lymphoma? ?Rhabdomyosarcoma Eye mass_ proptosis : Eye mass_ proptosis Heterogenous enhanced mass filling retrobulbar region, deforming eye ball? Malignant mass Extra orbital lesions : Extra orbital lesions Lesions can cause proptosis if from paranasal sinus/ nasal cavity or intracranial mass extension or bones in surrounding Proptosis _ post. op case : Proptosis _ post. op case Intracranial mass/ abscess with bone destruction Check next slice Same case : Same case Extracerebral mass/abscess drainage done aggressive infection gone deep Proptosis : Proptosis Calcific density mass Rt. Retrobulbar pushing eye ball anteriorly ? Congenital bony Dysplasia Proptosis : Proptosis Extra orbital midline malignant mass from base of skull Paranasal sinus : Paranasal sinus Nonenhanced expansile cystic mass lesion in Rt. frontal sinus ? mucocele Paranasal sinus : Paranasal sinus Nonenhanced expansile cystic mass lesion in Rt. frontal sinus ? mucocele Paranasal sinus : Paranasal sinus Frontal mucocele Paranasal sinus : Paranasal sinus Huge soft tissue mass displacing and compressing eye ball ? ethmoidal mucocele Paranasal Sinus : Paranasal Sinus Ethmoidal mucocele Paranasal sinus : Paranasal sinus Nonenhanced expansile cystic lesion in sphenoidal sinus ?mucocele might cause proptosis if huge Paranasal sinus_ mass : Paranasal sinus_ mass Paranasal sinus mass extending orbital fossa Other paranasal sinus lesion : Other paranasal sinus lesion Few paranasal sinus lesions might cause eye problem or proptosis if the lesion is severe Paranasal sinuses : Paranasal sinuses Thin wall enhanced lobulated cystic mass in both maxillary sinuses ? Mucosal cyst Paranasal sinuses : Paranasal sinuses Air fluid level in Rt. Maxillary sinus ? sinusitis Paranasal sinuses : Paranasal sinuses Irregular mucosal thickening Lt. maxillary sinus Calcified mucosa Rt. Maxillary sinus ? Chronic sinusitis Mass face : Mass face Mass Rt maxillary antrum, filling nasal cavity, crossing midline ? malignancy Mass face : Mass face Advance malignancy Rt. maxillary antrum Intracranial mass : Intracranial mass well enhanced suprasellar mass involving Rt. Optic nerve? meningioma Same case : Same case Huge mass with hydrocephalus AVM : AVM dilated sup. Ophth.vein