[A Case of Pathologic Complete Response Achieved with Preoperative Pembrolizumab Therapy for Transverse Colon Cancer].
Gan To Kagaku Ryoho
; 50(13): 1612-1614, 2023 Dec.
Article
en Ja
| MEDLINE
| ID: mdl-38303358
ABSTRACT
A 77-year-old female patient presented with a medical history of 4 cancerous lesions, each with a surgical history. She was referred to our hospital due to anemia. Upon examination, she was diagnosed with transverse colon cancer. Duodenal invasion was suspected, which made performing R0 surgery difficult; therefore, the NAC approach was chosen. Three courses of CAPOX were administered, resulting in tumor obstruction, leading to the formation of an ileum stoma. MSI testing revealed MSI-H, and pembrolizumab treatment was initiated. CT scans showed tumor shrinkage, and PET scans indicated no accumulation, resulting in a cCR. Colon resection including the lesion suspected of stenosis was performed with a strong desire for stoma closure and the determination of potential curative resection. Additionally, a partial resection of the duodenum was performed. Pathological examination did not reveal any evident tumor cells, leading to the determination for a pCR. The patient has been under postoperative surveillance for 1 year without any recurrence.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Neoplasias del Colon
/
Colon Transverso
/
Anticuerpos Monoclonales Humanizados
Límite:
Aged
/
Female
/
Humans
Idioma:
Ja
Revista:
Gan To Kagaku Ryoho
Año:
2023
Tipo del documento:
Article
Pais de publicación:
Japón