case_images: PMC11802427_01
case_images: Subsequent MRI of brain cerebellar metastasis. Coronal view: showing an infratentorial mass (36 x 39 x 48 mm) in the left cerebellar lobe (red arrow), leading to tonsillar herniation, compression of the fourth ventricle, and secondary supratentorial ventriculomegaly.
case_images: fonc-15-1519441-g001.jpg
case_images: PMC11802427_01_fonc-15-1519441-g001.jpg
case_images: f1
case_images: The MRI showed an infratentorial mass (36 x 39 x 48 mm) in the left cerebellar lobe, causing tonsillar herniation, compression of the fourth ventricle, and secondary supratentorial ventriculomegaly ( Figure 1 ).
case_images: The microscopic analysis showed cerebellum with malignant and invasive epithelial neoplasm with the formation of glandular lumina with cribriform areas lined by cylindrical epithelium and mucinous material (Hematoxylin and eosin staining).
case_images: fonc-15-1519441-g002.jpg
case_images: PMC11802427_01_fonc-15-1519441-g002.jpg
case_images: f2
case_images: The microscopic analysis showed the cerebellum with malignant and invasive epithelial neoplasm and the formation of glandular lumina with cribriform areas lined by cylindrical epithelium and mucinous material ( Figure 2 ).
case_images: Postoperative magnetic resonance imaging following retrosigmoid craniotomy (red arrow).
case_images: fonc-15-1519441-g003.jpg
case_images: PMC11802427_01_fonc-15-1519441-g003.jpg
case_images: f3
case_images: The supratentorial ventricular system appeared normal ( Figure 3 ).
case_images: Histopathology confirmed metastatic adenocarcinoma of colonic origin, with positive immunohistochemical staining for (A) CK 7 (+), (B) CK 20 (3+) and (C) CDX 2 (3+).
case_images: fonc-15-1519441-g004.jpg
case_images: PMC11802427_01_fonc-15-1519441-g004.jpg
case_images: f4
case_images: Days later, histopathology confirmed metastatic adenocarcinoma of colonic origin, with positive CK 7 (+), CK 20 (3+), and CDX 2 (3+) immunohistochemical staining ( Figure 4 ).