case_images: PMC2647933_01
case_images: Computed tomography scan showing appendix mucocele.
case_images: 1752-1947-3-28-1.jpg
case_images: PMC2647933_01_1752-1947-3-28-1.jpg
case_images: F1
case_images: Serum carcinoembryonic antigen (CEA) was <2 mug/L and the computed tomography (CT) scan revealed an appendiceal mass (Figure 1) without any surrounding lymph node enlargement.
case_images: (A) Mucinous cystadenoma and goblet cell carcinoid with hematoxylin and eosin (x200). (B) Goblet cell mucin positive with alcian blue/diastase/periodic acid Schiff stain (x200). (C) Chromogranin immunohistochemistry positive (x200).
case_images: 1752-1947-3-28-2.jpg
case_images: PMC2647933_01_1752-1947-3-28-2.jpg
case_images: F2
case_images: Proximally, the appendix was infiltrated by adenocarcinoid composed of islands of epithelial cells with abundant intracellular mucin and eosinophilic granules (Figure 2).