[Mucinous adenocarcinoma of the anal region. Study of 4 cases].
OBJECTIVE
We report 4 cases of a special anal tumor featuring a long history of inflammatory signs and fistulas in that area.


METHODS
A retrospective study from the histologic diagnosis back to the first symptom and up to the last follow-up or death.


METHODS
We studied all patients with a histologic diagnosis of mucinous adenocarcinoma of the anus admitted to our hospital.


RESULTS
All of them showed a long history of anal inflammatory signs and/or fistula before diagnosis. In all cases, the tumors were mucinous adenocarcinomas with minimal cytologic atypia. Of the 4 patients, one is dead, and we have lost the follow-up of another one 13 months after surgery when he had no evidence of recurrence.


CONCLUSIONS
In every patient with a long-standing anal fistula or a recurrent anal abscess, a biopsy is mandatory to rule out an underlying low grade mucinous carcinoma and if it shows a low grade mucinous adenocarcinoma, the treatment of choice will be local resection if it is available. If not, an abdominal perineal resection showed be done without hesitation.
Sacristán
F
F
Servicio de Anatomía Patológica, Hospital Juan Canalejo, La Coruña.
Iglesias
P
P
Ortiz
J A
JA
Bouso
M
M
Souto
J
J
Arnal
F
F
D002288:Adenocarcinoma, Mucinous / Q000473:pathology / Q000601:surgery; D000328:Adult; D000368:Aged; D001003:Anal Canal / Q000473:pathology; D001005:Anus Neoplasms / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D012003:Rectal Fistula / Q000473:pathology
Adenocarcinoma mucinoso de región anal. Estudio de 4 casos.