Resumen
La úlcera rectal solitaria es un trastorno crónico, benigno, excepcional en pediatrÃa, caracterizado por un conjunto de sÃntomas, como tenesmo, dolor perianal y prolapso rectal ocasional, con unos hallazgos anatomopatológicos tÃpicos. La histologÃa pone de manifiesto un engrosamiento de la mucosa y la muscularis mucosae, la elongación y distorsión de las glándulas, un edema de la lámina propia y, a veces, una ulceración de la lesión. Las lesiones se localizan con frecuencia en la pared anterior del recto, y la ulceración no siempre está presente. El diagnóstico suele ser tardÃo, dada la inespecificidad y la variabilidad clÃnica, y se basa en los estudios endoscópicos e histológicos. Aunque se trata de una entidad bien conocida en la edad adulta, resulta inusual en pediatrÃa. Presentamos el caso de un adolescente de 16 años diagnosticado 4 años después del inicio de los sÃntomas.
Abstract
Solitary rectal ulcer syndrome is a rare condition in children, with benign chronic curse that is characterised by a complex of clinical and histological features. It usually appears with rectal bleeding, tenesmus and perinial pain, occasional rectal prolapse and typical anatomopathological findings. Histologically, the presence of thickening of the mucous portion and muscularis mucosae, elongation and distortion of the glands and edema of the lamina propria and occasionally, ulceration of the lesion. The lesions are most often located on the anterior wall of the rectum, and ulceration is not always present. The diagnosis is usually delayed due to the nonspecific and clinical variability and is based on samples obtained by colonoscopy and biopsy. Although this entity is well recognized in adults, there are few pediatric cases reported in literature. We report a 16 year-old boy case who was diagnosed 4 years after the onset of the symptoms.