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Figure 2: (a) Photomicrograph of case 2 showing a prominent papillary pattern with uniform nuclei (H and E, ×100); (b) The tumor cells show strong cytokeratin 18 positivity and multilayering around the fibrovascular core (IP, ×400); (c and d) T1W postcontrast image shows a heterogeneous enhancing lesion seen in the posterior third ventricle involving the pineal region abutting and compressing the tectal plate (case 3); (e) Photomicrograph of the same case showing a papillary tumor with hyalinized core and moderate nuclear atypia (H and E, ×200)

Figure 2: (a) Photomicrograph of case 2 showing a prominent papillary pattern with uniform nuclei (H and E, ×100); (b) The tumor cells show strong cytokeratin 18 positivity and multilayering around the fibrovascular core (IP, ×400); (c and d) T1W postcontrast image shows a heterogeneous enhancing lesion seen in the posterior third ventricle involving the pineal region abutting and compressing the tectal plate (case 3); (e) Photomicrograph of the same case showing a papillary tumor with hyalinized core and moderate nuclear atypia (H and E, ×200)