Biomaterial Database

Clear cell adenocarcinoma arising from umbilical endometriosis. 2013

Koshiro Obata, and Naoko Ikoma, and Gen Oomura, and Yoshiki Inoue

Department of Obstetrics and Gynecology, Kinki University School of Medicine, Nara Hospital, Nara, Japan. koshiro-kazuyo@kcn.jp

Umbilical endometriosis is a very rare condition, and as far as we are aware, there have been no reported cases of its malignant transformation. Here, we report a case of clear cell adenocarcinoma arising from umbilical endometriosis in a 60-year-old woman who underwent hysterectomy for a uterine myoma at the age of 38, and who denied cyclic bleeding at the site of an umbilical cutaneous nodule correlating with menses until the age of 48. An umbilical tumor (3 cm diameter) was identified by magnetic resonance imaging and an abnormal accumulation was found only at the umbilical lesion by positron emission tomography examination. We observed endometriosis adjacent to the clear cell adenocarcinoma and transformation to carcinoma from endometriosis at the umbilical lesion histopathologically. Clear cell adenocarcinoma of the umbilicus was thought to have arisen from endometriosis; it expressed HER-2 protein and showed strong mesothelial characteristics immunohistochemically.

UI	MeSH Term	Description	Entries
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D002471	Cell Transformation, Neoplastic	Cell changes manifested by escape from control mechanisms, increased growth potential, alterations in the cell surface, karyotypic abnormalities, morphological and biochemical deviations from the norm, and other attributes conferring the ability to invade, metastasize, and kill.	Neoplastic Transformation, Cell,Neoplastic Cell Transformation,Transformation, Neoplastic Cell,Tumorigenic Transformation,Cell Neoplastic Transformation,Cell Neoplastic Transformations,Cell Transformations, Neoplastic,Neoplastic Cell Transformations,Neoplastic Transformations, Cell,Transformation, Cell Neoplastic,Transformation, Tumorigenic,Transformations, Cell Neoplastic,Transformations, Neoplastic Cell,Transformations, Tumorigenic,Tumorigenic Transformations
D004715	Endometriosis	A condition in which functional endometrial tissue is present outside the UTERUS. It is often confined to the PELVIS involving the OVARY, the ligaments, cul-de-sac, and the uterovesical peritoneum.	Endometrioma,Endometriomas,Endometrioses
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000008	Abdominal Neoplasms	New abnormal growth of tissue in the ABDOMEN.	Abdominal Neoplasm,Neoplasm, Abdominal,Neoplasms, Abdominal
D014472	Umbilicus	The pit in the center of the ABDOMINAL WALL marking the point where the UMBILICAL CORD entered in the FETUS.
D018262	Adenocarcinoma, Clear Cell	An adenocarcinoma characterized by the presence of varying combinations of clear and hobnail-shaped tumor cells. There are three predominant patterns described as tubulocystic, solid, and papillary. These tumors, usually located in the female reproductive organs, have been seen more frequently in young women since 1970 as a result of the association with intrauterine exposure to diethylstilbestrol. (From Holland et al., Cancer Medicine, 3d ed)	Adenocarcinomas, Clear Cell,Clear Cell Adenocarcinoma,Clear Cell Adenocarcinomas