Submucosal, intramural, and perigastric
serpentine vascular structures are well demonstrated on CT (Figure 11), best performed in the portal venous phase.
In addition, there was metastatic tumor in 1 of the 4 perigastric
lymph nodes (Figure 6).
During the study period, 151 patients underwent LAGB using the perigastric technique at the hospital, but only 82 of these patients were available for a follow-up evaluation in 2009.
Data Source: A 13-year follow-up study of 82 patients who underwent LAGB using the perigastric technique during 1994-1997.
A CT-guided biopsy specimen of perigastric
lymph nodes showed necrotizing granulomatous inflammation (Figure 1, panel F), but results of fungal and acid-fast staining were negative.
and periportal lymph node biopsie s as well as omental biopsy were performed.
This tumor spread can be subtle, manifested as slightly increased attenuation of the normally homogenous perigastric fat to complete obliteration of fat planes between organs with replacement by soft tissue due to tumor.
Perigastric nodes are suspicious for nodal spread of disease when they measure >8 mm in diameter.
Six of the 11 dissected perigastric
lymph nodes showed the same mixed neuroendocrine/nonendocrine histologic pattern as observed in the gastric samples.
Tumor metastasis was present in 1 of the resected perigastric lymph nodes.
2,3,23] Our case interestingly demonstrated perigastric lymph node metastasis, despite the early stage of the primary tumor.
Gross and microscopic examinations of tissue from the adrenal mass, kidney, periaortic and perigastric
lymph nodes, gastric serosa, and spleen were performed.