Fig. 23.11 Papillary carcinoma. (A) Cell cluster showing enlarged nuclei with irregular contour and fine granular chromatin. Several nuclei show cytoplasmic
nuclear inclusions; some of them with soap-bubble appearance (May-Grünwald-Giemsa x OI). (B) Papillary fragment centered by several concentric
calcifications (psammoma bodies) (Papanicolaou x HP). Follicular variant of papillary carcinoma. (C) Syncytial-type tissue fragment with follicular pattern
(May-Grünwald-Giemsa x MP). (D, E) Detail shows cells with ovoid nuclei and characteristic nuclear ridges (May-Grünwald-Giemsa and Papanicolaou x OI).