Lipoma isquiorrectal gigante como causa de dolor anal, incontinencia fecal y dispareunia. Una asociación excepcional / Giant ischiorectal lipoma as a cause of anal pain, fecal incontinence and dyspareunia. An exceptional association

RESUMEN

RESUMEN Los lipomas suponen el 50% de los tumores de partes blandas. Podrían comprimir estructuras adyacen tes. Presentamos el caso de una mujer de 49 años con dolor anal intenso asociado a urgencia defecatoria, tenesmo, incontinencia y dispareunia. Presentaba tumoración blanda a nivel del glúteo derecho compa tible con lipoma. La resonancia magnética identificó una masa de 15,7 × 9 × 6 cm, de apariencia encap sulada, que se extendía por la fosa isquioanal e isquiorrectal con impronta sobre el músculo elevador del ano, desplazando el recto. Se efectuó exéresis en bloque, con alta en 48 horas sin complicaciones. El informe de Anatomía Patológica definitivo fue lipoma. Valoramos la asociación de lipoma e incontinencia fecal con una búsqueda en PubMed. Se obtuvieron 87 artículos de los cuales ninguno respondía al objeto del estudio. Esta sintomatología es un fenómeno excepcional en la literatura, que se diagnostica funda mentalmente mediante RM y ecoendoscopia. Gran resultado funcional tras la exéresis.

ABSTRACT

ABSTRACT Lipomas account for 50% of soft-tissue tumors and may compress adjacent structures. We report the case of a 49-year-old female patient with intense anal pain associated with defecation urgency, tenesmus, incontinence and dyspareunia. A soft tumor was present in the right buttock suggestive of lipoma. On magnetic resonance imaging an apparently encapsulated mass with a size of 15.7 × 9 × 6 cm was identified extending through the ischioanal fossa and ischiorectal fossa, displacing the levator ani muscle and rectum. The lesion was excised en bloc and the patient was discharged 48 hours later without complications. The pathology report concluded that the lesion corresponded to a lipoma. We performed a bibliographic search in PubMed to assess the association between lipoma and fecal incontinence; Of the 87 articles retrieved, none of them responded to the subject of the study. These symptoms are exceptional in the literature. The diagnosis is made mainly with magnetic resonance imaging and endoscopic ultrasound. An excellent functional outcome was achieved with surgical excision.