Diagnostic et traitement des tumeurs mésentériques

Cystic mesenteric lymphangioma: A case report

“…The symptoms are poor, missing sometimes and non-specific, with a progressive evolution. During complications, as rupture, infection, hemorrhage, digestive volvulus the clinical presentation is an acute abdomen [3,4,10,23,24]. According to Losanoff and Kjossev, a classification based on the morphotype of lesions is necessary to optimize the surgical treatment [26] (Table 1).…”

“…The tumor is homogeneous, hypodense, thin partitions and not enhanced by the liquid contrast [24]. However, the partitions can be enhanced when there are thick [4]. The fatty content characteristic of chylous liquid can be objective by a negative density.…”

“…It is a spontaneous malformation composed by lymphatics vessels and lymphoid tissue [2,3]. It is the most common cystic mesenteric tumor [4]. It frequently appears in children, in 60% of cases before one year old [[5], [6], [7]] and is rare in adult people [8].…”

Splenic lymphangioma

“…The lesion at the CT scan is hypodense, homogeneous, with thin partitions and without intravenous contrast enhancement [17]. Partitions can be raised by the contrast if they are thick [18]. Magnetic resonance imaging has the same sensibility than the CT scan.…”

Volvulus du mesentere sur lipome mesenterique: à propos d’un cas

“…Comparée à l'échographie, la tomodensitométrie fournit des renseignements supplémentaires concernant la nature de la masse et permet de réaliser un éventuel bilan d'extension en cas de lésion maligne ce qui est indispensable avant toute intervention [ 1 – 4 ] Dans notre cas, le diagnostic de lipome a été retenu devant la densité graisseuse de la masse (-93 UH), l'aspect homogène, la paroi fine, l'absence de calcification et de cloisons et l'absence de rehaussement après injection de produit de contraste. Devant cette masse mésentérique d'autres diagnostics quoique peu probables pouvaient être évoqués notamment le liposarcome, le lipoblastome, le lymphangiome kystique mais leurs aspects tomodensitométriques sont différents de ceux du lipome [ 1 , 4 , 10 , 11 ].…”