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Revista Colombiana de Cirugía
versión impresa ISSN 2011-7582versión On-line ISSN 2619-6107
Resumen
SARRIUGARTE-LASARTE, Aingeru et al. Blumer’s shelf: diagnostic sign of distant spread of diffuse gastric cancer. rev. colomb. cir. [online]. 2021, vol.36, n.1, pp.144-149. Epub 05-Mayo-2021. ISSN 2011-7582. https://doi.org/10.30944/20117582.547.
Introduction.
The neoplastic thickening of the cul-de-sac of Douglas is known as “Blumer’s shelf”. It is palpable on rectal examination as a protrusion in the form of a projection, and it presents in patients affected by carcinomas with diffuse infiltration. Despite being described more than a century ago, it is a rare process with little mention in the scientific literature. A high level of clinical suspicion is required to correlate pelvic symptoms with the presence of a typically gastric tumor.
Clinical cases.
We present two patients with a Blumer’s shelf finding associated with diffuse gastric cancer, one as a primary diagnosis of metastatic disease and the other as a recurrence of the disease, months after being operated on. Both cases present a complex diagnostic process, in which clinical suspicion prevails, supported by imaging tests such as computed tomography and magnetic resonance imaging, since both endoscopic biopsies and intraoperative biopsies were negative.
Discussion.
In Blumer’s shelf, tumor cells infiltrate the cul-de-sac of Douglas in a diffuse and subserous manner, without the need for macroscopically visible implants in the visceral peritoneum. Tumor infiltration can extrinsically affect the rectum, causing its stenosis, which produces nonspecific pelvic symptoms such as rectal tenesmus and proctalgia. Therefore, this ominous process should be suspected in patients with pelvic symptoms, who present or have presented gastric cancer.
Palabras clave : stomach; gastric neoplasms; adenocarcinoma; plastic linitis; Blumer shelf.