Midfoot Arthritis in Children: Is There Any Relation With Malignancy?

BACKGROUND: Musculoskeletal symptoms are a presenting manifestation in a number of lymphoproliferative disorders including leukemia, especially in children. Among these primary symptoms, midfoot arthritis seems to be an important alarm for malignancy in children. The aim of this study is evaluation association of midfoot arthritis with malignancy in children. METHOD: In this cross-sectional study, all medical records of patients with arthritis were identified and reviewed. All clinical and laboratory data were recorded in the information form and data were analyzed by SPSS 25 software. RESULTS: A total of 557 cases of arthritis were evaluated, of which 18 (3.2%) cases have primary symptoms of midfoot arthritis. Four of 18 patients (22.2%) had B-cell precursor acute lymphoblastic leukemia, that midfoot arthritis was their first manifestation. Also, their laboratory findings confirmed that platelet, lactic acid dehydrogenesis, and uric acid values were significantly higher in these children. Based on statistical evaluation, there was no significant difference between age and sex in these patients. CONCLUSION: According to the findings of the present study, it can be concluded that “midfoot arthritis” may be the first manifestation of leukemia in children even with a near-normal hematologic values.