The histopathological report:
MACROSCOPY:
The specimen consists of Right hemicolectomy measured as:
Ascending colon segment measuring 20 cm long & 2 cm in diameter, ileal segment measuring 6 cm long & 1 cm in diameter & cecum measuring 9 cm long & 7 cm in diameter, with attached dilated appendicular mass measuring 9 cm & 7 cm in diameter.
On opening: filled with mucoid material. The dissection of pericolic fat revealed 17 nodules ranging from 0.2 to 0.7 cm in diameter with a grayish firm cut section.
Representative sections were taken in 8 cassettes.
MICROSCOPY:
Sections from appendix revealed cystic lesion lined by single layer of mucin-secreting epithelium with tufts, vaguely resemble serrations with mucin in the lumen & calcification. The wall lining showed inflammatory cellular infiltrate, with no mucin in the wall.
Sections examined from both resected & appendicular margins were free of tumor.
Examination of the seventeen dissected lymph nodes revealed reactive lymphoid hyperplasia, with surrounding fat showed hemorrhage & congestion.
DIAGNOSIS:
Right hemicolectomy:
Low-grade appendiceal mucinous neoplasm (Mucinous cystadenoma).
Margins negative for mucinous neoplasm. There is no invasion into the appendiceal wall.