PMC9240588_01
CT scan of the abdomen showing an inflamed appendix with no peri-appendiceal
wall thickening or fat stranding. No appendiceal diverticulitis was
visible.
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Computed tomography (CT) scan revealed an inflamed appendix with no peri-appendiceal wall thickening or fat stranding (Figure 1).
Appendiceal diverticulosis gross histopathology. Appendiceal diverticulosis
(arrow). No appendicitis was seen.
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The appendiceal specimen was sent for histopathologic evaluation which revealed no appendicitis, rather an acquired appendiceal diverticulum (Figure 2) and more notably a carcinoid tumor measuring 1.25 cm in size with invasion to the lamina propria, submucosa, muscularis propria, and mesoappendix, as well as lymphovascular and perineural involvement (Figures 3 and 4).
Neuroendocrine cells in mucosa of appendix (magnification: 100x).
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The appendiceal specimen was sent for histopathologic evaluation which revealed no appendicitis, rather an acquired appendiceal diverticulum (Figure 2) and more notably a carcinoid tumor measuring 1.25 cm in size with invasion to the lamina propria, submucosa, muscularis propria, and mesoappendix, as well as lymphovascular and perineural involvement (Figures 3 and 4).
Chromogranin stain of appendiceal specimen (magnification: 100x).
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The appendiceal specimen was sent for histopathologic evaluation which revealed no appendicitis, rather an acquired appendiceal diverticulum (Figure 2) and more notably a carcinoid tumor measuring 1.25 cm in size with invasion to the lamina propria, submucosa, muscularis propria, and mesoappendix, as well as lymphovascular and perineural involvement (Figures 3 and 4).