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Case Report

Case Report: Inflammatory orbital pseudotumor revealing Behçet's disease: an original observation

[version 1; peer review: 1 not approved]
PUBLISHED 20 Mar 2024
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Abstract

Objective

To provide an original observation of Behçet’s disease, revealed by an inflammatory pseudotumor of the orbit.

Methods

We reported an observation of an inflammatory pseudotumor of the orbit that revealed Behçet’s disease.

Results

Twenty-Eight years old patient was admitted to the internal medicine department for painful edema in the right eye with headache and loss of visual acuity.

Ophthalmologic examination revealed eye protrusion with conjunctival hyperemia. Orbital MRI resonance imaging revealed periorbital inflammatory thickening associated with inflammatory myositis. Behçet’s was diagnosed based on a history of recurrent oral aphthous since childhood, pseudofolliculitis, pathergy test positivity, and negativity of the rest of the etiological investigations. The evolution was spectacular with boli methylprednisolone and colchicine prescriptions.

Conclusion

Although the association is rare, Behçet’s disease should be included in the workup of inflammatory pseudotumors of the orbit.

Keywords

Inflammatory orbital pseudotumor, Behçet’s disease, Inflammatory diseases, Corticosteroids

Introduction

Behçet’s disease (BD) is a systemic vasculitis that predominantly affects males. Eye involvement is common, occurs in 28-50% of cases, and is dominated by uveitis.1,2

Clinical case

A 28-year-old Tunisian male patient was admitted for right orbital protrusion and edema (Figure 1) with local pain and intense helmet headache lasting for 15 days before admission.

fc21d723-13fd-43b1-b011-adbb99d629c6_figure1.gif

Figure 1. Right orbital protrusion and edema.

Ophthalmological examination of the right eye revealed a visual acuity of 2/10. A painful non-pulsatile non-reducible exophthalmia with corneal edema, Tyndall to 2 crosses in the anterior chamber with iridocorneal synechia. Examination of the left eye revealed no abnormalities.

Both brain and orbital MRIs were performed using T1, T2, T2*, and Flair diffusion protocols with sagittal axial and coronal cuts with and without gadolinium injection.

Brain MRI revealed no cerebral venous thrombosis. Orbital MRI revealed thickening of the right anterior orbital soft tissues along with an important inflammatory signal in the extra conal fat, which was moderately enhanced by gadolinium injection, with no intra- or extra-conal soft tissue collection.

MRI also showed a discrete inflammatory signal abnormality with contrast enhancement of the right internal and upper right oblique muscles and periorbital inflammatory thickening associated with inflammatory myositis with no extension to the intra-conal or intracranial fat (Figures 25). No abnormalities were observed in the rest of the structures, especially in the optic nerves.

fc21d723-13fd-43b1-b011-adbb99d629c6_figure2.gif

Figure 2. T1 MRI transversal plane showing important inflammatory signal in extraconal fat.

fc21d723-13fd-43b1-b011-adbb99d629c6_figure3.gif

Figure 3. T2 MRI transversal plane showing an important inflammatory signal, which was moderately enhanced at gadolinium injection.

fc21d723-13fd-43b1-b011-adbb99d629c6_figure4.gif

Figure 4. T1 MRI coronal plane showing inflammatory signal in extraconal fat.

fc21d723-13fd-43b1-b011-adbb99d629c6_figure5.gif

Figure 5. T2 MRI coronal plane showing an important inflammatory signal, which was moderately enhanced at gadolinium injection.

Physical examination revealed a history of recurrent oral aphthous and pseudofolliculitis. The remaining examinations revealed no abnormalities.

B5 HLA typing was negative, and pathergy test results were positive. The diagnosis of Behçet’s disease with inflammatory orbital pseudotumor was confirmed. A workup of the tumor was performed as follows: an ENT examination and bacterial and viral serologies. Thyroid balance, antinuclear antibodies, and tumor markers CEA – PSA, alpha FP, CA 19-9, chest radiographs, sinus, and pelvic abdominal ultrasound showed no abnormalities. Biopsy of the mass was not performed. The patient received three bolus doses of 1 g of methylprednisolone per day, each relayed with corticosteroid (1 mg/kg/day associated with colchicine at a dose of 1 mg/day).

The outcome was favorable after 5 days, with regression of the local inflammatory phenomena (Figure 6). Examination of the control eye showed improvement in the right visual acuity to 9/10, persistent conjunctival injection with normal eye movements, and a quiet anterior segment with a normal eye bottom. The retinal angiography results were normal. Based on both clinical and examination data improvements, we did not opt for subsequent MRI control. The patient did not relapse after 6 months of follow-up.

fc21d723-13fd-43b1-b011-adbb99d629c6_figure6.gif

Figure 6. Regression of local inflammatory phenomena.

Discussion

The idiopathic orbital inflammatory syndrome was first described by Birch and Hirschfield in 1905. It is also known as orbital pseudotumor and represents a nonspecific and nonneoplastic inflammatory process of the orbit.3,4 This condition most commonly involves extraocular muscles. Less commonly, there are inflammatory changes involving the uvea, sclera, lacrimal gland, and retrobulbar soft tissue. The exact etiology is unknown. The main differential diagnosis is malignant tumor progression.5,6

It represents 4.7 to 6.3% (depending on the series) of all orbital conditions.7 We distinguished between localized and diffuse inflammatory pseudotumors of the orbit.

Myositis is the most frequent orbital-localized inflammatory pseudotumor. Orbital myositis is a form of idiopathic orbital inflammation, characterized by inflammation of the external eye muscles. It may lead to proptosis, periocular pain, and diplopia.46

The etiologies are dominated by infectious causes (Lyme disease and trichinosis), sarcoidosis, Crohn’s disease, systemic lupus, polyarteritis nodosa, rheumatoid arthritis, Wegner’s granulomatosis, and neoplastic causes.4,5,8

Diagnosis is based on radiological, histological, and clinical data.

The association between Behçet’s disease and inflammatory pseudotumor has rarely been reported, and the first observation was published in 1996, reporting an inflammatory pseudotumor of the terminal ileum in Behçet’s disease.6 Other locations have been described: the heart,9 brain,10 and orbit.1113

Myositis associated with Behçet’s disease is rare. It mainly affects the skeletal muscles.7

There are few associations between orbital myositis and Behçet’s disease, as mentioned in Table 1.7,8,11,1214 It is rarely reported as an initial manifestation of Behçet’s disease, as illustrated in our case.7,13,14 To the best of our knowledge, this is the fourth reported case of Behçet’s disease caused by an inflammatory orbital pseudotumor.

Table 1. reported cases of inflammatory pseudotumor of the orbit reported in Behçet’s disease.

ReferenceYearAgeGenderPresentation as the initial manifestationOther manifestations of BDTreatmentEvolution
Bouomrani et al.7201237MYesRecurrent oral and genital ulcers
Pseudofolliculitis
Intravenous methylprednisolone
Colchicine
Improvement
Jee-Hoon Roh et al.8200636FNoRecurrent oral aphtous
Uveitis
Erythema nodosum
Positive pathergy test
Intravenous methylprednisolone (1 g/day for 5 days) followed by oral prednisolone 50 mg/dayImprovement
Hammami et al.11200635FNoRecurrent oral and genital ulcers
Pseudofolliculitis
Polyarthralgia
Positive pathergy test
Intravenous methylprednisolone (1 g/day) for 3 days followed by oral prednisone (1 mg/kg/day)Improvement
Chebbi et al.12201345MNoNACorticosteroidsImprovement
Garrity et al.16200433FNoNAOral corticosteroids, cyclophosphamide, azathioprine, cyclosporine, colchicine, and methotrexateImprovement then recurrence 6 years later in the controlateral eye
Oral corticosteroids
Cyclosporine that was stopped because of side effects
Orbital radiotherapy
Infliximab (4 mg/kg)
Methotrexate
Immediate relief then she developed recurrence 9 months later
Methotrexate (10 mg weekly), infliximab (8 mg/kg every two months), and prednisone (20 mg)NA
Shinya et al.13202232FYesOral and genital ulcers
Folliculitis-like skin rash
Presence of ulcers at the ileum
Intravenous methylprednisolone
Ciclosporine
Improvement
Aiessa Fedrigo et al.14201726FYesOral and genital ulcers
Arthralgias and arthritis
High dose corticosteroidsAbsence of improvement
Botulinum toxin injection on medial rectus of right eyeBrief improvement
AzathioprineAbsence of improvement
Anti-TNF αImprovement
Our patient202328MYesOral aphthous Pseudofolliculitis
Positive pathergy test
Intravenous methylprednisolon: 1 gram per day for three days
Oral corticosteroid: 1 mg/kg/da
Colchicine
Improvement

As orbital biopsies are rarely done, radiological diagnosis is sufficient.7

Treatment is based on corticosteroids,79 as is the case in our patient. However, it may be refractory to corticosteroid therapy. Sometimes, immunosuppressive drugs are also required.7,15 The prognosis is favorable with this type of treatment, apart from some recalcitrant forms that require the use of TNF blockers.16

Rituximab has demonstrated effectiveness in cases resistant to glucocorticoids, surgery, or radiation therapy. This finding indicates that rituximab may be a valuable treatment option for managing this condition.17,18

Conclusion

The association between Behçet’s disease and the inflammatory pseudotumor of the orbit is exceptional. Orbital inflammation should be considered as an ophthalmic manifestation of Behçet’s disease and treated precociously to preserve the visual prognosis.

Declarations

Ethics approval and consent to participate

not applicable

Consent for publication

Written informed consent for publication has been obtained from the patient.

Authors’ contributions

  • - Dr. Sameh Sayhi: Revising the article, approval of the work, and agreeing to be held accountable.

  • - Dr. Arij Ezzouhour Yahyaoui: Drafting and revising the article, approval of the work, and agreeing to be held accountable.

  • - Dr. Rim Dhahri: Drafting, Approval of the work, and agreeing to be held accountable.

  • - Dr. Nour Elhouda Guediche: Revising the article, approving the work, and agreeing to be held accountable.

  • - Dr. Bilel Arfaoui: Revising the article, approval of the work, and agreeing to be held accountable.

  • - Dr. Faida Ajili: Revising the article, approval of the work, and agreeing to be held accountable.

  • - Dr. Nadia Ben Abdelhafidh: Revising the article, approving the work, and agreeing to be held accountable.

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how to cite this article
Sayhi S, Yahyaoui AE, Dhahri R et al. Case Report: Inflammatory orbital pseudotumor revealing Behçet's disease: an original observation [version 1; peer review: 1 not approved]. F1000Research 2024, 13:197 (https://doi.org/10.12688/f1000research.146248.1)
NOTE: If applicable, it is important to ensure the information in square brackets after the title is included in all citations of this article.
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Open Peer Review

Current Reviewer Status: ?
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ApprovedThe paper is scientifically sound in its current form and only minor, if any, improvements are suggested
Approved with reservations A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit.
Not approvedFundamental flaws in the paper seriously undermine the findings and conclusions
Version 1
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PUBLISHED 20 Mar 2024
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Reviewer Report 13 Mar 2025
Mohammad E. Naffaa, Galilee Medical Center, Nahariya, Israel 
Not Approved
VIEWS 5
I read with great interest the case reported by Sayhi et al. the authors reported a of inflammatory pseudotumor of the eye/orbit and tried to associate it to Behcet after their basic work up was unrevealing.

Though ... Continue reading
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HOW TO CITE THIS REPORT
Naffaa ME. Reviewer Report For: Case Report: Inflammatory orbital pseudotumor revealing Behçet's disease: an original observation [version 1; peer review: 1 not approved]. F1000Research 2024, 13:197 (https://doi.org/10.5256/f1000research.160312.r367880)
NOTE: it is important to ensure the information in square brackets after the title is included in all citations of this article.

Comments on this article Comments (0)

Version 1
VERSION 1 PUBLISHED 20 Mar 2024
Comment
Alongside their report, reviewers assign a status to the article:
Approved - the paper is scientifically sound in its current form and only minor, if any, improvements are suggested
Approved with reservations - A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit.
Not approved - fundamental flaws in the paper seriously undermine the findings and conclusions
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