Rates of Positive Findings on Positron Emission Tomography and Bone Marrow Biopsy in Patients With Ocular Adnexal Lymphoma

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Abstract

Purpose:

The aim of this study was to determine rates of positive findings on positron emission tomography (PET) and bone marrow biopsy performed during staging workup for ocular adnexal lymphoma (OAL).

Methods:

A retrospective review of OAL patients was conducted. Demographics, primary versus secondary OAL, histologic subtype, and findings on PET and bone marrow biopsy performed as part of the initial staging workup for OAL were recorded.

Results:

The study included 119 patients with OAL. There were 85 primary and 34 secondary OALs. The main histologic subtypes of lymphoma were mucosa-associated lymphoid tissue (n = 61), follicular (n = 26), diffuse large B-cell (n = 17), and mantle cell (n = 10). Positive PET findings were seen in 42 of 68 patients (62%) with primary OAL and 19 of 24 (79%) with secondary OAL. Positive PET findings were seen in 24 of 47 patients (51%) with mucosa-associated lymphoid tissue, 13 of 17 (76%) with follicular, 14 of 15 (93%) with diffuse large B-cell, and 9 of 10 (90%) with mantle cell lymphoma. Positive findings on bone marrow biopsy were seen in 7 of 59 patients (12%) with mucosa-associated lymphoid tissue, 4 of 23 (17%) with follicular, 1 of 17 (6%) with diffuse large B-cell, and 2 of 9 (22%) with mantle cell lymphoma.

Conclusions:

Our findings suggest that a significant proportion of patients with primary and secondary OAL have positive findings on PET and bone marrow biopsy at initial diagnosis, suggesting a reasonable yield for these tests as part of the initial staging workup in patients with a new diagnosis of OAL.

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