C. Signet ring cell adenocarcinoma
Colonic adenocarcinoma is among the most common cancers found in adults in the United States. The symptoms may vary depending on the location of the tumor, whether it is on the right or left side. However, the presence of bloody stools should prompt a more detailed physical examination.
Although the histology of signet ring cells is more common in carcinomas of the stomach, it can also be seen in other areas of the gastrointestinal tract or outside of the gastrointestinal tract, such as in the lung.
The treatment and prognosis of these tumors depends largely on the staging of the tumor at the time of diagnosis.