Serous Cystadenocarcinoma Arising in Presumed Vitelline Duct Remnant: A Case Report and Implications in the Management of Cancer of Unknown Primary

Figure 3

The abdominal wall mass (a) comprised small glands as well as large cystic spaces lined by cuboidal cells with eosinophilic, vacuolated or clear cytoplasm, and variably conspicuous nucleoli. The lymph node (b) showed glandular structures with morphology similar to that seen in the abdominal wall mass and residual lymphoid tissue in the background (hematoxylin-eosin staining, 200x).

(a)

(b)