PMC9130006_01
Intraoperative image showing a huge lobulated, multicystic mesenteric mass attached to the small intestine.
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The tumor was excised completely with small bowel resection comprising of around 10 cm of distal jejunum and proximal ileum followed by anastomosis of proximal to distal segment (Figure 1).
Gross photograph of mesenteric lymphangioma of small intestine: (a) postoperative specimen. (b) Formalin-fixed specimen with section through the mass showing pale white solid tan to spongy appearances, (c) involvement of small intestine, and (d) oozing of the milky fluid.
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On serial sectioning, the cut surfaces showed multiple minute cystic cavities giving a spongy appearance and were filled with milky fluid (Figure 2(a)). The rest of the mucosa was unremarkable (Figures 2(b)-2(d)).
(a) Photomicrograph of mesenteric lymphangioma showing numerous cystically lymphatic channels (hematoxylin & eosin stain, 4x); (b) lined by flattened endothelium and perivascular lymphoid infiltration; (hematoxylin & eosin stain, 40x); (c, d) involvement of mucosa, submucosa, and muscularis propria by lymphangioma (hematoxylin & eosin, 4x and 10x).
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Section from the intestine also showed lymphatic channels involving the mucosa, submucosa, and muscularis propria (Figures 3(a)-3(d)).