Depressed-type submucosal invasive colorectal cancer in a patient with Lynch syndrome diagnosed using short-interval colonoscopy.
Dig Endosc
; 28(7): 749-754, 2016 Nov.
Article
en En
| MEDLINE
| ID: mdl-27500781
ABSTRACT
Although regular colonoscopy surveillance is recommended for patients with Lynch syndrome (LS) who underwent partial colectomy, the appropriate interval has not been determined. We report a case of colorectal cancer (CRC) detected by short-interval surveillance colonoscopy (SC) in a patient with LS having a past history of partial colectomy. A 65-year-old man underwent sigmoidectomy for advanced CRC. His family history revealed that his two younger brothers had CRC in their twenties and thirties, respectively, and the patient met with the criteria in the Revised Bethesda Guidelines. After confirming the loss of MSH2 protein expression in the primary tumor, subsequent genetic testing showed germline mutation with a large deletion of exon 7-14 in the MSH2 gene, indicating a diagnosis of LS. After the diagnosis of LS, the patient underwent annual SC. Three years after the initial surgery, superficial submucosal invasive cancer was detected. Subsequently, SC after a 6-month interval revealed a deep submucosal invasive cancer (7 mm in diameter). Although additional surgery was recommended, considering his comorbidities, regular SC rather than colectomy was selected. Even shorter-interval SC carried out within a year is not sufficient to detect endoscopically resectable tumors in some high-risk LS cases.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias Colorrectales
/
Neoplasias Colorrectales Hereditarias sin Poliposis
/
Colonoscopía
Tipo de estudio:
Diagnostic_studies
/
Guideline
Límite:
Aged
/
Humans
/
Male
Idioma:
En
Revista:
Dig Endosc
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
/
GASTROENTEROLOGIA
Año:
2016
Tipo del documento:
Article
País de afiliación:
Japón