RESUMO
The first case of pure squamous cell carcinoma arising in a villous adenoma of the cecum is reported, and the literature of squamous cell carcinoma of the colon is reviewed. The possible origin of this neoplasm in adenomas of the colon, similar to that of adenocarcinoma, is discussed, and the site distributions of adenocarcinoma and squamous cell carcinoma are compared. The distribution of primary colonic squamous cell carcinoma is found to be predominantly right-sided in comparison to adenocarcinoma (p less than 0.05). Although this result does not preclude adenomas as the origin of most squamous cell carcinomas, it suggests the influence of as yet unknown site-asymmetric factors that are different from those for adenocarcinoma.
Assuntos
Adenoma/patologia , Carcinoma de Células Escamosas/patologia , Neoplasias do Colo/patologia , Adenocarcinoma/patologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Técnicas Imunoenzimáticas , Metástase LinfáticaRESUMO
A case of maternal death from pulmonary hypertension secondary to pulmonary granulomatosis is presented. The granulomas are associated with a history of intravenous injection of medications (Ritalin and Talwin) intended for oral use.