A Case Report of X-Linked Hyperimmunoglobulin M Syndrome with Lipoma Arborescens of Knees

<div>Histopathologic changes of synovial biopsy. Histopathologic examination of synovial biopsy revealed multiple villi having fatty core lined by hyperplastic synoviocytes with chronic inflammatory cell infiltration (hematoxylin and eosin stain 4x).</div>

Case Reports in Medicine

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Figure 2: A Case Report of X-Linked Hyperimmunoglobulin M Syndrome with Lipoma Arborescens of Knees 