| الملخص: | Background: mucinous tumors represent about 8% of appendix neoplasms and cause cystic dilatation of the appendix due to the accumulation of gelatinous material. Mucinous cystadenoma of the appendix is a rare disease, which occurs asymptomatically and is diagnosed incidentally through imaging studies or intra-operatively and accounts for 0.2% to 0.6% of appendectomies.
Objective: to present the unusual case of a 19-year-old girl operated on for acute appendicitis who also had a mucinous cystadenoma of the appendix.
Clinical case: patient without previous pregnancy, with a history of weight loss in a period of 6 months and recurrent pain in the epigastrium that relieved with analgesics, came for pain in the lower right quadrant of the abdomen of 48 hours of evolution, accompanied by nausea and loss of appetite. Physical examination revealed tachycardia and abdominal pain on palpation in the right iliac fossa, with a positive Blumberg maneuver; vaginal and rectal examinations were painful. In the surgical act, a cecal appendix was found thickened in the proximal third, turgid, with a hard mass in the distal third and an appendectomy was performed without complications. The evolution was favorable and the patient was discharged.
Conclusions: despite the rareness of this condition, the surgeon must know that this type of tumor may be present in an appendicular frame even in young patients in order to take the appropriate surgical behavior and avoid complications to the patient.
DeCS: CYSTADENOMA, MUCINOUS/surgery; CYSTADENOMA, MUCINOUS/diagnostic imaging; APPENDICEAL NEOPLASMS/surgery; APPENDECTOMY/utilization; CASE REPORTS.
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