[Clear cell adenocarcinoma arising from abdominal wall endometriosis].
BACKGROUND
Clear cell carcinoma originating in the abdominal wall is a rare event. It is generally associated with endometrial tissue implants left behind after a caesarean section or other gynaecological operations. Its pathophysiology is complex and controversial.


METHODS
The case is presented of a 45 year-old female with history of three caesarean sections, who was seen due to having a tumour mass of 6 months onset in the anterior abdominal wall. Imaging studies confirmed its location, and due to measuring 9 by 7 cm it was suspected to be an urachal tumour. A resection with wide margins was performed. The histopathology report was of a clear cell adenocarcinoma originated in ectopic endometrial tissue, with negative margins.


CONCLUSIONS
This is a very rare case, with few cases reported in the literature. This diagnosis should be included in tumours of the abdominal wall.
Unidad de Oncología, Hospital Juárez de México, Secretaría de Salud, México, D.F. , México. Electronic address: eriksosa2011@hotmail.com.
Erik Efraín
EE
Sosa-Durán
Unidad de Oncología, Hospital Juárez de México, Secretaría de Salud, México, D.F. , México.
Ziad
Z
Aboharp-Hasan
Servicio de Anatomía Patológica, Hospital Juárez de México, Secretaría de Salud, México, D.F. , México.
Roberto Cuauhtémoc
RC
Mendoza-Morales
Unidad de Oncología, Hospital Juárez de México, Secretaría de Salud, México, D.F. , México.
Francisco Mario
FM
García-Rodríguez
Unidad de Oncología, Hospital Juárez de México, Secretaría de Salud, México, D.F. , México.
Xicoténcatl
X
Jiménez-Villanueva
Servicio de Anatomía Patológica, Hospital Juárez de México, Secretaría de Salud, México, D.F. , México.
José Rafael
JR
Peñavera-Hernández
D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D034861:Abdominal Wall / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D018262:Adenocarcinoma, Clear Cell / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D002585:Cesarean Section / Q000009:adverse effects; D003937:Diagnosis, Differential; D004715:Endometriosis / Q000150:complications*; D005260:Female; D006801:Humans; D007049:Iatrogenic Disease; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014497:Urachus
Carcinoma células claras; Clear cell carcinoma; Endometriosis; Malignant transformation; Transformación maligna