49) Erdogan, et al hypothesized that epithelial cells covering the embryonic gonads in early fetal life might be the common origin for cystadenoma
and ovarian stroma.
Of the benign neoplasms, serous cystadenomas
was the most common neoplasm, 40 cases (43%).
Because a mucinous cystadenoma
or cystadenocarcinoma was a possibility, we deferred a biopsy.
Other terms for this lesion include oncocytic cystadenoma
, oncocytic adenomatous hyperplasia, cystic oncocytic metaplasia, and eosinophilic granular cell cyst.
Those that form large cystic masses, as in the ovary, are referred to as cystadenomas
Tumor-totumor metastasis: report of two cases of renal cell carcinoma metastasizing to microcystic serous cystadenoma
of the pancreas.
is a rare benign neoplasm of the epididymis.
3-6) To the best of our knowledge, retroperitoneal cystadenoma
during pregnancy has not been reported.
The differential diagnosis based on imaging findings included cystic mesothelioma and retroperitoneal cystadenoma
The pathology most consistent with cysts of the large-volume category and thus requiring surgery is serous cystadenoma
She was found to have a microperforation of the sigmoid colon and multiple gynecologic pathologies, including myomata, right serous cystadenoma
, and left tubo-ovarian complex suggestive of endometriosis.
Macroscopic as well as microscopic pathological features, including the presence of cell atypia, established the diagnosis of low-grade mucinous cystadenoma
arising in a completely isolated and infected ileal duplication cyst.