Of the 156 cases, 38 (24.35%) were diagnosed as inflammatory lesions and 114 (73.07%) as
neoplastic lesions.
Pathologically, colloid carcinoma is defined as an infiltrating ductal epithelial neoplasm of pancreas characterized by the presence, in at least 50% of the neoplasm, of abundant extracellular stromal mucin pools and a scant amount of
neoplastic cells floating in the center (5, 10).
These lesions frequently progress to invasive SCC (GROSS et al., 2005; TSUJITA & PLUMMER, 2010), suggesting solar radiation as the main factor predisposing to
neoplastic invasion in these outbreaks.
The mucous-producing
neoplastic cells formed acinar structures containing swollen cells with abundant clear cytoplasm and round central nuclei, or nuclei displaced to the periphery (signet-ring cells) (Fig 3D).
Among the
neoplastic lesions, in the present study, follicular adenomas were diagnosed with 100% accuracy by FNAC.
The
neoplastic cells infiltrate both splenic cords and sinuses.
Ovarian masses were broadly classified into non-neoplastic and
neoplastic. Non-neoplastic masses included Follicular cyst, Corpus luteal cyst, Endometriotic cyst and inflammatory masses.
Non
neoplastic lesions were common in the second decade and as age advances
neoplastic lesions like Low grade appendiceal mucinous neoplasm and Mucinous adenocarcinoma of the appendix were encountered.
Histologically,
neoplastic cells had markedly distended cytoplasm that was eosinophilic and often vacuolated, as is described in cases of other species (OMAR, 1969; JACOBSEN et al., 2010; KRAFSUR et al., 2014).
We had 67.53% of non-neoplastic lesions which outnumbered
neoplastic lesions similar to a study by other researchers in India [3,5,8,9] as well as from other countries such as Pakistan, [7] Nepal, [10] and Nigeria.
Presumably, this fungal infection was secondary to the chronic
neoplastic disease process because of immunosuppression.
Among these findings, absence of mass effect in adjacent vascular/biliary structures, characteristic location, ill-defined lesion borders rather than round or oval shape (which are characteristic for true
neoplastic lesions), contrast enhancement pattern similar to background liver parenchyma should be counted (11).