dadénome

A dadénome is a benign tumor originating from the glandular tissue of the duodenum, the first section of the small intestine. These tumors are characterized by the proliferation of glandular structures, often forming polypoid or nodular masses within the duodenal mucosa. Dadénomes are relatively rare and are most commonly diagnosed in middle-aged to older adults.

The exact cause of dadénomes is not well understood, but they are generally considered to be benign neoplasms with low malignant potential. They can be asymptomatic and discovered incidentally during endoscopic procedures or imaging studies conducted for other reasons. When symptomatic, they may cause signs such as gastrointestinal bleeding, obstruction, or abdominal discomfort.

Diagnosis of a dadénome typically involves endoscopy, where the tumor can be visually identified and biopsied for histopathological examination. Imaging modalities such as computed tomography (CT) or magnetic resonance imaging (MRI) can help evaluate the extent of the lesion and its relationship to adjacent structures.

Treatment options depend on the size, location, and symptomatology of the tumor. Small, asymptomatic dadénomes may be monitored with periodic surveillance. Symptomatic or larger lesions are often managed with endoscopic excision or surgical resection to prevent complications such as bleeding or obstruction. Histopathological analysis typically confirms the diagnosis and rules out malignant transformation.

Prognosis for patients with dadénome is generally excellent, with a low risk of recurrence or malignant progression when appropriately treated. Regular follow-up is recommended to monitor for any changes or new symptoms.