PART TWO
Diagnostic Cytology
Fig. 23.16 Malignant lymphoma. (A) Low-power view showing numerous isolated cells and small tissue fragments (May-Grünwald-Giemsa x LP). (B) Detail
shows large irregular lymphoid cells with prominent nucleoli. In the background there are many lymphoglandular bodies and a starry sky macrophage (May-
Grünwald-Giemsa x OI). (C) Detail shows large atypical lymphoid cells. In the background there are hemorrhage and a starry sky macrophage (Papanicolaou
x OI). (D) Immunostaining with CD20 (PImmuniperoxidase x HP).
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Fig. 23.17 Metastatic carcinoma in the thyroid gland. (A) Colonic intestinal adenocarcinoma. Cluster of tumor cells with peripheral nucleus forming
a "picket fence." The background contains cell debris (May-Grunwald-Giemsa x MP). (B) Renal clear cell carcinoma. Tissue fragment composed by polygonal
cells with round to oval nuclei and clear abundant vacuolated cytoplasms (May-Grunwald-Giemsa x MP).
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