Smears are moderately cellular, set against a heavy, granular, and proteinaceous background (suggestive of cyst fluid contents). The cellular component consists predominantly of scattered inflammatory cells, including neutrophils and lymphocytes, admixed with numerous foamy histiocytes (macrophages) containing phagocytosed debris. There is evidence of cellular degeneration and nuclear streaking. No malignant epithelial cells or suspicious solid components are identified in the examined fields.
Fluid from previous cyst removal from chest
One smear was prepared and stained from submitted 5 ml brownish fluid.
Fine Needle Aspiration / Cyst Fluid – Chest Wall