PMC6702856_01
A 37-year-old male with the right lower quadrant pain. Axial and coronal computed tomography scan showing dilated appendix measuring about 17 mm with near water density fluid in lumen and no periapendiceal inflammatory changes suggesting mucocele.
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F1
The computed tomography (CT) scan demonstrated dilated appendix measuring up to 17 mm in diameter without the evidence of periappendiceal inflammatory changes, concerning for mucocele [Figure 1].
PMC6702856_02
A 35-year-old female, axial and coronal computed tomography scan in a different patient showing fluid filled dilated appendix measuring up to 15 mm without periappendiceal inflammatory changes. Sagittal computed tomography image showing the calcium in appendix and partially visualized cyst. Note the fluid density structure near the tip of appendix which represented mesenteric cyst on histopathology.
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F2
CT scan demonstrated a mildly dilated appendix measuring 10 mm with the evidence of calcium within the mildly enhancing walls without surrounding inflammatory changes suggesting the diagnosis of equivocal appendicitis with incidental hypodense cystic structure abutting the tip of appendix [Figure 2].
PMC6702856_03
A 69-year-old female, axial and coronal computed tomography scan showing thickened heterogeneously enhancing mass at the tip of appendix measuring up to 18 mm, proximal appendix measured up to 8 mm in diameter without evidence of periappendiceal inflammatory changes concerning for the appendiceal tumor.
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F3
The CT scan demonstrated thickened heterogeneously enhancing mass at the tip of appendix measuring up to 18 mm, proximal appendix measured up to 8 mm in diameter without evidence of periappendiceal inflammatory changes concerning for the appendiceal tumor [Figure 3].
A 69-year-old female with dilated appendix and enhancing mass at the tip of appendix. The histopathology (x10) H and E stained section of appendix shows thinned out and denuded mucosal lining (red arrow) along with areas showing mucus extending into the wall (white arrow). Findings are consistent with mucinous cystadenoma of appendix.
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F4
On histopathology, low-grade mucinous neoplasm of appendix was confirmed [Figure 4].