Bone metaplasia in ovarian metastasis of colorectal carcinoma.

Calcerrada Alises E, et al. presented the case of a hyperplastic polyp with bone metaplasia. We present the case of a patient with metastatic colorectal adenocarcinoma in the ovary, with bone metaplasia in the ovarian metastasis but not in the primary lesion.

Carcinosarcoma of the gallbladder diagnosed in a cholecystectomy specimen.

We report the case of a patient with an incidental diagnosis of gallbladder adenocarcinoma with chondrosarcomatoid areas in a cholecystectomy specimen. Since it is associated with a worse prognosis when compared to usual carcinoma, we need to understand this entity to offer our patients a better treatment.