Trauma to the anterior segment can cause an iritis. A comprehensive eye examination is necessary to determine the extent of the injury to ocular structures. Ruling out differential diagnoses and prompt management with topical cycloplegic agents and steroids improves patient comfort and visual prognosis. CE Notification: This article is available as a COPE accredited CE course. You may take this course for 1-hour credit. Read the article and take the qualifying test to earn your credit. Click here to Enroll (https://www.crojournal.com/traumatic-iritis-a-case-study)

SIGNIFICANCE: Mantle cell lymphoma (MCL) is a rare lymphoma that can present even more rarely in the orbit. Diagnosis, differentiation, and systemic treatment with the help of an oncologist are necessary for improved prognosis. Eye care providers must be vigilant when addressing ocular findings to determine next steps. PURPOSE:We present a case of presumed orbital fat prolapse confirmed as MCL found on routine eye examination.CASE REPORT: A 72-year-old White man presented for an annual comprehensive eye examination and was found to have conjunctival elevation in the superior and inferior fornices bilaterally. The patient had stable lymphadenopathy on positron emission tomography/computed tomography imaging 1 week before presentation. Coupled with the patient's recent diagnosis of systemic MCL, there was high suspicion that the conjunctival lesions were malignant. Biopsy of the conjunctival lesion confirmed MCL. A reevaluation of the previous imaging with a neuroradiologist confirmed the presence of orbital lesions consistent with MCL. The patient responded to treatment with lowdose focal radiation therapy.CONCLUSIONS: Primary eye care providers should be aware of limitations of orbital imaging during routine positron emission tomography and computed tomography scans in those with MCL, and consultation with neuroradiology for image review may be useful if the clinical findings are suspicious.