Type:
Educational Exhibit
Keywords:
Neoplasia, Lymphoma, Dysplasias, Surgery, Contrast agent-intravenous, Biopsy, CT, Oncology, Lymph nodes, Abdomen
Authors:
B. Fraj1, N. Achour1, A. CHERIF2, S. Mghaieth3, N. Mnif1; 1TUNIS/TN, 2SOUSSE/TN, 3Tunis, tunis/TN
DOI:
10.26044/ecr2019/C-3098
Background
Small bowel tumours are rare,
accounting for 3-6% of gastrointestinal tumors.
They are often clinically silent or have nonspecific symptoms so that an early diagnosis is usually difficult and only made when patients develop an advanced stage of the disease.
The most common manifestations are abdominal pain,
typically intermittent,
nausea,
vomiting,
weight loss,
jaundice,
gastrointestinal bleeding,
obstruction,
and perforation.
Symptomatic tumors are more commonly malignant.
Although the differential diagnosis for a small bowel tumor is extensive,
various small bowel neoplasms have characteristic features at computed tomography (CT) that may aid in making a diagnosis.
Histologic subtypes of neoplasms of the small intestine(SI) have a predilection for different regions along the SI tract :Adenocarcinome most commonly involves the duodenum and jejunum while carcinoide tumors are more commonly found in the ileum.
In day-to-day practice,
the radiologist encounters secondary neoplasms more frequently than primary neoplasms of the SI; hematogenous spread of melanoma,
lung and breast primaries,
and peritoneal dissemination of ovarian,
gastric,
and colonic neoplasms are commonly recognized.