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Año 2017 / Volumen 109 / Número 2
Imagen en Patología Digestiva

Signet ring cell carcinoma of the jejunum: an uncommon finding within the reach of capsule endoscopy

149-150

José Francisco Juanmartiñena, Marta Montes, Ignacio Fernández-Urién,

Resumen

An 80 year-old female presented with ductal breast carcinoma (stage II) three years ago, complained of asthenia and iron-deficiency anemia. No diagnosis was obtained after conventional endoscopy and iron supplements were indicated. Ten months later visible digestive hemorrhage was presented. Upper and lower endoscopy was repeated but non-diagnosis was obtained. Thus, video capsule endoscopy was indicated identifying a stenotic lesion arising in the mucosa of distal jejunum. Histopathological examination revealed a poorly mucinous differentiated signet-ring cell adenocarcinoma with an intense peri-tumoral lymphoid (Crohn´s–like lymphoid reaction) and lympho-vascular infiltration with no nodal metastases (pT3N0;7ª edition TNM classification). Immunochemistry revealed negative stained for estrogen and progesterone receptors in contrast with prior breast cancer. Thus, metastatic origin was rule out. Primary small-bowel malignancies are extremely rare. They account for 2% of all gastrointestinal tract malignancies. Carcinoid tumor (40%), adenocarcinoma (33%), lymphoma (17%) and sarcoma (8%) are most common histological types. Symptomatic lesions are rare, but when present: gastrointestinal bleeding, abdominal pain and weight loss are most common digestive symptoms. Primary signet ring cell adenocarcinoma is a rarely histopathological variety of adenocarcinoma with poor prognosis, usually identified in esophageal or gastric locations (95%). They are less commonly detected in remaining gastrointestinal tract, and when present, metastatic origin must always rule out. Nowadays, diagnostic delayed is common and leads to detected small bowel neoplasms at late stages with poor treatment outcomes. Thus, capsule endoscopy may help to improve this situation as it may identify them at early stages.

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Bibliografía

1. Bilimoria KY, Bentrem DJ, Wayne JD, et al. Small bowel cancer in the United States: changes in epidemiology, treatment, and survival over the last 20 years. Ann Surg. 2009;249:63-71

DOI: 10.1097/SLA.0b013e31818e4641

2. Iizawa H, Ikeda E, Sato T, et al. Signet-ring cell carcinoma of the ileum: report of a case and review of the Japanese literature. Surg Today.1998; 28:1168-71.

DOI: 10.1007/s005950050306

3. Yamagami H, Oshitani N, Suekane T, et al. Signet-ring cell carcinoma of the jejunum diagnosed by double balloon enteroscopy. Hepatogastroenterology. 2008; 55:1246-8.

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