Adenocarcinoma of the Rectum with Choriocarcinomatous Differentiation: A case report
Journal of the Korean Society of Coloproctology
;
: 274-278, 2007.
Artigo
em Coreano
| WPRIM
| ID: wpr-89837
ABSTRACT
A choriocarcinoma of the rectum is extremely rare and has a very poor prognosis. Its rarity and the obscurity of its histogenesis make the entity of disease hard to define. We report a case of a choriocarcinoma of the rectum which showed synchronous liver and lung metastasis. A 52-year- old male patient presented with tenesmus, hematochezia and pain on defecation for 4 months. The preoperative colonoscopy revealed a mass at the rectum, 3 cm proximal to the anal verge. The biopsy revealed a poorly differentiated adenocarcinoma. An abdominoperineal resection was performed, and the pathologic examination confirmed a choriocarcinoma arising from an adenocarcinoma. Immunostain for beta-human chorionic gonadotropin (hCG) was strongly positive for the choriocarcinoma component. Serum hCG checked postoperatively was as high as 4,222 IU/L, but the serum carcinoembryonic antigen (CEA) was normal. Although chemotherapy was begun at the 5th week after the operation, the patient died on the 47th day after the operation. A choriocarcinoma of the colon or the rectum is very rare and is aggressive. Although radical resection and chemotherapy are performed, the clinical outcome is very disappointing. Even though a choriocarcinoma of the colon or the rectum is very rare, it should be included on the list for differential diagnosis of a colorectal carcinoma.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Prognóstico
/
Neoplasias Retais
/
Reto
/
Biópsia
/
Neoplasias Colorretais
/
Adenocarcinoma
/
Antígeno Carcinoembrionário
/
Coriocarcinoma
/
Colonoscopia
/
Colo
Tipo de estudo:
Estudo diagnóstico
/
Estudo prognóstico
Limite:
Feminino
/
Humanos
/
Masculino
/
Gravidez
Idioma:
Coreano
Revista:
Journal of the Korean Society of Coloproctology
Ano de publicação:
2007
Tipo de documento:
Artigo
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