Orbital Lymphoma Radiology Pdf

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OrbitalLymphoproliferativeDisorders(OLPDs):Valueof

May 29, 2014 malignant lesions.1 Orbital lymphoma is the most common or- bitalneoplasmrepresenting55%ofcasesinadults. 2 Mostorbital lymphomas are primary, low-grade, B-cell, non-Hodgkin lym-

W J R World Journal of Radiology

orbital lymphoma. There are exceptions to these rules, however. Sarcoid commonly produces diffuse lacrimal gland enlargement without infiltration of surrounding fat, a pattern that is more suggestive of lymphoma. Lym-phoma may also have a surrounding inflammatory com-ponent in some cases[12]. Diffusion-weighted imaging (DWI) is perhaps the

Orbital lymphangioma: an analysis of 26 patients

radiology reports and histopathology. Lym-phangiomas were misdiagnosed as orbital hae-mangiomas in five cases by a radiologist; in these five cases the initial radiological examina-tion was a CT scan. Three radiology reports included haemangioma versus lymphangioma, two rhabdomyosarcoma versus lymphangi-oma, one lymphoma versus lymphangioma,

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All patients with lymphoma, except those with subtypes of primary cutaneous lymphoma normally limited to the skin such as mycosis fungoides, should be imaged for staging at diagnosis. Staging objectives To stage nodal disease. To stage extranodal disease. To stage primary cerebral, orbital and head and neck lymphoma.

Comparison of Selection and Long-term Clinical Outcomes

mary ocular adnexal lymphoma (POAL) was first reported in 1952 [1], and defined as a malignant neoplasm involving lesions of the conjunc-tiva, lacrimal gland, orbit, and eyelid as orbital adnexal lesions, it has been found to occurin 1 2%of all non-Hodgkin's lymphoma(NHL) pa-tients and in approximately 30 55% patients with orbital

Orbital Lymphoma: Results of Radiation Therapy

Orbital lymphoma is a rare presentation of extranodal non-Hodgkin s lymphoma, accounting for less than 1% of the total. 1 The role of radiotherapy in its management is well-established. 2-7 This is a report of 20 cases of orbital lymphoma at the Singapore General Hospital (SGH) treated primarily with radiotherapy. Materials and Methods

Neuror Orbital plasmablastic lymphoma with remission

Radiology Case. 2011 Feb; 5(2):1-7 adiology: Orbital plasmablastic lymphoma with remission following chemotherapy Degnan et al. rts Andrew J. Degnan A 43 year with a CD4 count of 530 cells/mm3, not currently on HAART, presented with left Three months prior to this admission, he was seen for a ja abscess for which his doctors prescribed clindamycin.

NEURORADIOLOGY Indeterminate Orbital Masses

556 radiology.rsna.org n Radiology: Volume 256: Number 2 August 2010 NEURORADIOLOGY: Indeterminate Orbital Masses at MR Imaging Sepahdari et al GE Healthcare, Milwaukee, Wis), and 11 were imaged with a 3.0-T imaging unit (Signa Excite; GE Healthcare). Forty-two patients, including all those imaged at 3.0 T, were imaged with an

Orbital lymphoma in an elderly patient

Orbital lymphomas are rare, comprising only 1% of all non-Hodgkin s lymphoma.1 Lymphomas are the most common primary orbital tumor in adults of age 60 years and older.2 Three hundred fourteen primary orbital malignancies were reported by Margo and Mulla, 55% of which were orbital lymphoma.3 CASE REPORT

To Explore MR Imaging Radiomics for the Differentiation of

orbital lymphoma and IgG4-ROD. Since previous studies suggested that MR imaging is a promising tool to accurately visualize the location, shape, and internal structure of orbital lymphoma[1,2, 7, 11]; in this study, we assessed thevalueof conventional MR images in machine learning-based radio-mics approaches for clinical identification of

European Journal of Radiology Open

malignant. Lymphoproliferative lesions were further subgrouped as lymphoma or other lymphoproliferative lesions. The validity of the ADC value for the diffuse orbital mass was compared between groups. The area under curve (AUC) was also calculated. Results: Thirty-nine cases of diffuse orbital masses were evaluated. The median ADC was 0.58

Clinical, radiological and histological correlation in

commonly misdiagnosed type of orbital lesion is lymphoproliferative disorder and orbital inflammation, whereas the least commonly misdiagnosed type of orbital lesion is congenital and lacrimal gland and sac tumours. There was significant disparity between clinical diagnosis and radiology report, however, relatively less

Orbitalni limfom udružen sa Gravesovom bolesti

orbitopathy, orbital lymphoma represents rare conditions. We presented of a patient with Graves disease, initially manifested as bilateral orbitopathy and progressive unilat-eral exophthalmos caused by the marginal zone B-cell non-Hodgkin lymphoma of the orbit. Case report. A 64-year-old man with the 3-year history of bilateral Graves orbi-

Can DWI & ADC differentiate orbital lymphoma, non-specific

Orbital lymphoma; Cellulitis; Non-specific orbital inflammation Abstract The aim of this work: To differentiate orbital lymphoma, non-specific orbital inflamma-tion (NSOI) and orbital cellulitis using DWI & ADC, as there is marked clinical overlap in the diag-nosis of these three orbital conditions.

Differentiation of orbital lymphoma and idiopathic orbital

10 are valuable in differential diagnosis of orbital lymphoma and IOIP. Keywords: Orbit, Lymphoma, Inflammatory pseudotumor, Diffusion weighted imaging, Histogram * Correspondence: [email protected] †Equal contributors Department of Radiology, Shanghai Ninth People s Hospital, Shanghai Jiao

Imaging the Eye and Orbit

Orbital Pseudotumor Tends to be unilateral 25% of all cases of unilateral exophthalmos Diffuse infiltration of orbital tissues Remitting or chronic and progressive May regress spontaneously or responds to steroids Similar to lymphoma clinically, radiographically & pathologically

The Radiological Spectrum of Orbital Pathologies that Involve

Aug 04, 2007 orbital lymphoma usually occurs in older people, and the average age for occurrence of this tumor is in the sixth decade of life. Lymphoid tumors are part of a disease spectrum that includes benign lymphoid hyperplasia (Fig. 7), atypical lymphoid hyperplasia and malignant lymphoma. There is a tendency towards bilateral involve-ment.

Case Report: Atypical Lymphoid Infiltrate of the Right Orbit

factor for determining the prognosis of patients with orbital lymphoid neoplasms. o The histopathologic features of orbital lesions aid in classification of lymphomas into specific categories and lead to a tailored treatment regimen. o Radiotherapy regimens for treatment of orbital lymphomas result in excellent local control rates.

European Journal of Radiology Open

Septic causes include orbital cellulitis, paranasal sinusitis, and septic cavernous sinus thrombosis (CST). Aseptic etiologies are secondary to facial trauma or inflammation, spontaneous carotid cavernous fistula (CCF), hypercoagulable states, orbital neoplasm and Tolosa Hunt syn-drome [3 6].

Orbital tumours and tumour-like lesions: exploring the

those orbital masses that present with non-specific morpho-logic imaging findings. Main messages/Teaching points † A compartment-based approach is essential for the diagno-sis of orbital tumours. † CT and MRI play a key role in the work-up of orbital tumours. † DWI, PET CT, and MRI PET are complementary tools to solve diagnostic dilemmas.

Bilateral ocular adnexal diffuse large cell lymphoma with

Ocular adnexal lymphoma is the most common primary orbital malignancy in adults. It occurs in roughly 5% of cases of systemic non-Hodgkin lymphoma and 8% of all extranodal lymphomas.2,5 Without systemic involvement, it has a high survival rate.6 However, systemic lymphoma may be present prior to, at or in the follow up. 7 In fact, Hatef

Combined positron emission tomography/computed tomography for

for orbital lymphoma and OAL and is probably used more widely for this disease than for any other tumours of the eye and orbit (Hui et al. 2012). In this paper, in addition to evalu-ation of whole-body PET/CT for OAL, we wanted to assess correlation of FDG-uptake with therapeutic status, histological grading and lymphoma stage. Materials and

Computed tomographic findings in lymphomas of the head and

Lymphoma is the second most common neoplasm of the head and neck. According to a recent study in Thailand, the incidence of malignant lymphoma has been increasing especially the incidence of non-Hodgkin lymphoma (NHL). (1) When suspicion of lymphoma arises during investigation of a focal mass lesion, the diagnosis still relies on tissue pathology.

CT and MRI Imaging Spectrum of Orbital Masses: A Pictorial

4. Wendy, R. E. (2008). Vascular Orbital Lesions of the Orbit: More Than Meets the Eye. Radiographics, 185-205 Multiple MRI images including dynamic phase obtained in a 76 y/o female patient with history of Multiple Myeloma and left orbital mass demonstrate a circumscribed left retro-orbital intraconal mass lesion with hyperintense T2 signal, that

Multimodality imaging of primary CNS lymphoma in

type orbital lymphoma. (a) Axial T 1 non-contrast image showing an expansive mass in the left orbit and infiltrating the orbital apex, with proptosis. (b) Coronal T 1 post-contrast image shows that the mass enhances. Figure 11. A 76-year-old male with confusion. Cerebrospinal fluid sampling showed cells highly suspicious for lymphoma of

Look Up - How A Routine Eye Exam Led to MALT Lymphoma Diagnosis

C. Laboratory studies: Biopsy revealed extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue, clinical stage IE MALT lymphoma. CD 20 cells were positive in the atypical lymphoid cells. Bone marrow biopsy was negative for any morphologic and flow cytometry evidence of lymphoma. D. Radiology studies: Orbital MRI was unremarkable.

Orbital and adnexal involvement in angiolymphoid hyperplasia

for systemic lymphoma. On the CT scan and MRI, the orbital lesions presentedas diffuse masses, infiltrating the extra ocular muscles and adjacent fat with the exception of case 2 in whom the lesion was located in the pre-septal region, as a mass with a well-defined contour. Biopsy of all cases showed the typical benign histopathological

Orbital Lesions: Differentiating Vascular and Nonvascular

Orbital Lesions: Differentiating Vascular and Nonvascular Etiologic Factors Colin S. Poon1,2 OBJECTIVE. Gordon Sze1 Michele H. Johnson1 Poon CS, Sze G, Johnson MH 1Department of Diagnostic Radiology, Yale University School of Medicine, New Haven, CT. 2Department of Radiology, SUNY Upstate Medical University, 750 E Adams St., Syracuse, NY 13210.

MR Imaging of Orbital Inflammatory Syndrome, Orbital

consent, a retrospective analysis of orbital MR imaging performed over a 7-year period was conducted. Two search methods were used to identify subjects with a diagnosis of orbital cellulitis, OIS, and or-bital lymphoid lesions. Using PACS, the keywords cellulitis, pseudotumor, and lymphoma were searched in Study Indica-

J o u r n al of R OMICS J Radiology C S O M I OMICS Journal

<30 Gy) and one had a bilateral orbital disease (primary orbital tumor treated with RT dose of >30 Gy) [7]. The systemic relapse-free survival rate among the stage I MALT lymphoma patients which comprise major group in their study was 75% at 5 years and the overall 5-year survival rate was 95%. However for the stage III-IV MALT lymphoma

Radiological and clinicopathological features of orbital

lymphoma. Conclusion The investigation and man-agement of orbital xanthogranulomas re-quires a multidisciplinary approach even though the diagnosis may be suspected clinically. Imaging delineates the extent of disease and involvement of local struc-tures and may influence the diVerential diagnosis. The juvenile form may be more

Head & Neck: DWI and IVIM in the Orbit at 3T

Orbital lymphoproliferative disorders (OLPDs): value of MR imaging for differentiating orbital lymphoma from benign OPLDs. AJNR Am J Neuroradiol 2014; 35:1976 1982. 3. Xu X-Q, Hu H, Liu H, Wu JF, Cao P, Shi HB, Wu FY. Benign and malignant orbital lymphoproliferative disorders: Differentiating using multiparametric MRI at 3.0T. J

Orbital Neoplasms in Adults: Clinical, Radiologic, and

adult orbital tumor. They typically appear as a well-circumscribed, ovoid intraconal mass on cross-sectional images. Lymphoma, which may be pri-mary or secondary to systemic disease, is the most prevalent orbital neo-plasm in older adults (≥60 years of age). Choroidal melanoma is the most common primary adult ocular malignancy.

Computed Tomography in Orbital Pathology with

B, Saravanan K. Computed Tomography in Orbital Pathology with Clinicopathological Correlation. International Journal of Contemporary Medicine Surgery and Radiology.2018;3(2):B60-B64. INTRODUCTION Understanding the imaging findings of common emergent non-traumatic orbital conditions such as inflammation,

Orbital Rosai Dorfman The Author(s) 2019 disease: a case

Apr 06, 2019 found in the left orbital by a magnetic resonance imaging scan, and we were able to diagnose lymphoma before the operation. Rosai Dorfman disease was finally diagnosed by surgical biopsy. The patient received radiotherapy. At a 1-year follow-up, there was no sign of a residual tumor.

ESSENTIALS OF RADIOLOGY STUDY GUIDE

ESSENTIALS OF RADIOLOGY STUDY GUIDE The Essentials of Radiology Examination is designed to test the radiology knowledge and clinical skills across both the subspecialties and imaging modalities of diagnostic radiology for the imaging diagnosis of conditions that may be encountered in the practices of all radiologists.

Thieme: Direct Diagnosis in Radiology Head and Neck

orbital 59 61 vs. orbital pseudotumor 56 hematoma vs. branchial cleft cyst 204 cervical 205 207 vs. thyroglossal duct cyst 152 hemorrhagic colloid cyst vs. goiter 228 vs. thyroid carcinoma 232 histiocytosis, vs. orbital lymphoma 72 HIV/AIDS and salivary gland abscess 192 and salivary gland lymphoma 196 and tuberculosis 242 Hodgkin disease

Department of Radiology and Imaging Sciences

Department of Radiology and Imaging Sciences, Sri Ramachandra Medical centre,porur, Chennai Duration of the course: 12 months Knowledge and skills required for admission to the Course and Entry criteria: MD / DNB in Radiology. Preference will be given to those who have worked in a teaching institute or tertiary centre.

Orbital lymphoma: imaging features and differential diagnosis

orbital lymphoma. The characteristic distribution and in-filtration of some orbital structures will define useful items to orientate a proper diagnosis. Additionally, this information can be helpful in ophthalmological surgery to obtain an optimal sample for accurate diagnosis. Dif-ferential diagnosis regarding the location of orbital masses