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Figure 3: (a– d) Fine needle aspiration cytology of the lung mass. (a) Cellular smears showing plasma cells (Pap stain; ×100). (b) Sheets of plasma cells (Pap stain; ×200). (c) Plasma cells with eccentrically placed nuclei and some showing prominent nucleoli (Pap stain; ×400). (d) Numerous plasmablasts (May grunwald giemsa (MGG) stain; ×400). (e, f) Lung biopsy. (e) Fragment of tumor tissue showing monoclonal neoplastic plasma cells (H&E stain; ×40). (f) Plasmablasts showing pleomorphism and prominent nucleoli (H&E stain; ×400). |
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