{"id":18875,"date":"2025-07-06T16:22:02","date_gmt":"2025-07-06T16:22:02","guid":{"rendered":"https:\/\/endoscopiaterapeutica.net\/es\/?p=18875"},"modified":"2025-07-06T16:24:45","modified_gmt":"2025-07-06T16:24:45","slug":"polipo-hamartomatoso-juvenil-solitario-pediatrico-relato-de-caso-y-revision-de-literatura","status":"publish","type":"post","link":"https:\/\/endoscopiaterapeutica.net\/es\/casosclinicos\/polipo-hamartomatoso-juvenil-solitario-pediatrico-relato-de-caso-y-revision-de-literatura\/","title":{"rendered":"P\u00f3lipo hamartomatoso juvenil solitario pedi\u00e1trico: relato de caso y revisi\u00f3n de literatura"},"content":{"rendered":"<p>Paciente de sexo femenino, 4 a\u00f1os de edad, presentando episodios recurrentes de sangrado rectal (hematoquecia) desde hace 11 meses, sin inestabilidad hemodin\u00e1mica o necesidad de hemotransfusi\u00f3n. Historial actual de intolerancia a la lactosa, sin otras enfermedades cr\u00f3nicas o cirug\u00edas. A pesar de la exclusi\u00f3n de l\u00e1cteos y derivados de la dieta, los episodios de sangrado persistieron.<br \/>Se realiz\u00f3 una colonoscopia, de manera ambulatoria, donde se identific\u00f3 un p\u00f3lipo pediculado lobulado en el colon descendente distal, con mucosa congestionada y edematosa, cubierta por fibrina y \u00e1reas hiper\u00e9micas, con patr\u00f3n de criptas tipo II de Kudo (Fig.1-2). El polo cef\u00e1lico ten\u00eda aproximadamente 3 cm de di\u00e1metro, con un ped\u00edculo largo y ancho (Fig.3-4). Se realiz\u00f3 la polipectom\u00eda utilizando asa diat\u00e9rmica, con resecci\u00f3n completa en monobloque (Fig.5-6). Se opt\u00f3 por el cierre del sitio de la excisi\u00f3n con un endoclip, sin complicaciones (Fig.7-8). No hubo hallazgos adicionales en los dem\u00e1s segmentos estudiados. El procedimiento tuvo una duraci\u00f3n de 30 minutos, con alta de la paciente tras su conclusi\u00f3n.<\/p>\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-1-Polipo-na-luz-branca.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-18408\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-1-Polipo-na-luz-branca-1024x819.jpg?v=1711471517\" sizes=\"(max-width: 1024px) 100vw, 1024px\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-1-Polipo-na-luz-branca-1024x819.jpg?v=1711471517 1024w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-1-Polipo-na-luz-branca-300x240.jpg?v=1711471517 300w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-1-Polipo-na-luz-branca-768x614.jpg?v=1711471517 768w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-1-Polipo-na-luz-branca-1170x936.jpg?v=1711471517 1170w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-1-Polipo-na-luz-branca-585x468.jpg?v=1711471517 585w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-1-Polipo-na-luz-branca.jpg?v=1711471517 1280w\" alt=\"\" width=\"1024\" height=\"819\" data-id=\"18408\" \/><\/a>\n<figcaption class=\"wp-element-caption\"><em>Figura 1<\/em><\/figcaption>\n<\/figure>\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-2-Polipo-visao-subaquaica.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img decoding=\"async\" class=\"wp-image-18410\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-2-Polipo-visao-subaquaica-1024x819.jpg?v=1711471517\" sizes=\"(max-width: 1024px) 100vw, 1024px\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-2-Polipo-visao-subaquaica-1024x819.jpg?v=1711471517 1024w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-2-Polipo-visao-subaquaica-300x240.jpg?v=1711471517 300w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-2-Polipo-visao-subaquaica-768x614.jpg?v=1711471517 768w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-2-Polipo-visao-subaquaica-1170x936.jpg?v=1711471517 1170w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-2-Polipo-visao-subaquaica-585x468.jpg?v=1711471517 585w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-2-Polipo-visao-subaquaica.jpg?v=1711471517 1280w\" alt=\"\" width=\"1024\" height=\"819\" data-id=\"18410\" \/><\/a>\n<figcaption class=\"wp-element-caption\"><em>Figura 2<\/em><\/figcaption>\n<\/figure>\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-3-Pediculo-1024x819.jpg?v=1711471517\"><img decoding=\"async\" class=\"wp-image-18412\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-3-Pediculo-1024x819.jpg?v=1711471517\" sizes=\"(max-width: 1024px) 100vw, 1024px\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-3-Pediculo-1024x819.jpg?v=1711471517 1024w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-3-Pediculo-300x240.jpg?v=1711471517 300w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-3-Pediculo-768x614.jpg?v=1711471517 768w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-3-Pediculo-1170x936.jpg?v=1711471517 1170w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-3-Pediculo-585x468.jpg?v=1711471517 585w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-3-Pediculo.jpg?v=1711471517 1280w\" alt=\"\" width=\"1024\" height=\"819\" data-id=\"18412\" \/><\/a>\n<figcaption class=\"wp-element-caption\"><em>Figura 3<\/em><\/figcaption>\n<\/figure>\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-4-Pediculo-visao-subaquatica.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18409\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-4-Pediculo-visao-subaquatica-1024x819.jpg?v=1711471517\" sizes=\"(max-width: 1024px) 100vw, 1024px\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-4-Pediculo-visao-subaquatica-1024x819.jpg?v=1711471517 1024w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-4-Pediculo-visao-subaquatica-300x240.jpg?v=1711471517 300w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-4-Pediculo-visao-subaquatica-768x614.jpg?v=1711471517 768w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-4-Pediculo-visao-subaquatica-1170x936.jpg?v=1711471517 1170w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-4-Pediculo-visao-subaquatica-585x468.jpg?v=1711471517 585w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-4-Pediculo-visao-subaquatica.jpg?v=1711471517 1280w\" alt=\"\" width=\"1024\" height=\"819\" data-id=\"18409\" \/><\/a>\n<figcaption class=\"wp-element-caption\"><em>Figura 4<\/em><\/figcaption>\n<\/figure>\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-5-Polipectomia-com-alca.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18411\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-5-Polipectomia-com-alca-1024x819.jpg?v=1711471517\" sizes=\"(max-width: 1024px) 100vw, 1024px\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-5-Polipectomia-com-alca-1024x819.jpg?v=1711471517 1024w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-5-Polipectomia-com-alca-300x240.jpg?v=1711471517 300w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-5-Polipectomia-com-alca-768x614.jpg?v=1711471517 768w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-5-Polipectomia-com-alca-1170x936.jpg?v=1711471517 1170w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-5-Polipectomia-com-alca-585x468.jpg?v=1711471517 585w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-5-Polipectomia-com-alca.jpg?v=1711471517 1280w\" alt=\"\" width=\"1024\" height=\"819\" data-id=\"18411\" \/><\/a>\n<figcaption class=\"wp-element-caption\"><em>Figura 5<\/em><\/figcaption>\n<\/figure>\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-6-Pos-resseccao.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18414\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-6-Pos-resseccao-1024x819.jpg?v=1711471517\" sizes=\"(max-width: 1024px) 100vw, 1024px\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-6-Pos-resseccao-1024x819.jpg?v=1711471517 1024w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-6-Pos-resseccao-300x240.jpg?v=1711471517 300w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-6-Pos-resseccao-768x614.jpg?v=1711471517 768w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-6-Pos-resseccao-1170x936.jpg?v=1711471517 1170w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-6-Pos-resseccao-585x468.jpg?v=1711471517 585w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-6-Pos-resseccao.jpg?v=1711471517 1280w\" alt=\"\" width=\"1024\" height=\"819\" data-id=\"18414\" \/><\/a>\n<figcaption class=\"wp-element-caption\"><em>Figura 6<\/em><\/figcaption>\n<\/figure>\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-7-Endoclipe.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18415\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-7-Endoclipe-1024x819.jpg?v=1711471518\" sizes=\"(max-width: 1024px) 100vw, 1024px\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-7-Endoclipe-1024x819.jpg?v=1711471518 1024w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-7-Endoclipe-300x240.jpg?v=1711471518 300w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-7-Endoclipe-768x614.jpg?v=1711471518 768w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-7-Endoclipe-1170x936.jpg?v=1711471518 1170w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-7-Endoclipe-585x468.jpg?v=1711471518 585w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-7-Endoclipe.jpg?v=1711471518 1280w\" alt=\"\" width=\"1024\" height=\"819\" data-id=\"18415\" \/><\/a>\n<figcaption class=\"wp-element-caption\"><em>Figura 7<\/em><\/figcaption>\n<\/figure>\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-8-Peca-pos-resseccao.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18413\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-8-Peca-pos-resseccao-1024x819.jpg?v=1711471517\" sizes=\"(max-width: 1024px) 100vw, 1024px\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-8-Peca-pos-resseccao-1024x819.jpg?v=1711471517 1024w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-8-Peca-pos-resseccao-300x240.jpg?v=1711471517 300w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-8-Peca-pos-resseccao-768x614.jpg?v=1711471517 768w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-8-Peca-pos-resseccao-1170x936.jpg?v=1711471517 1170w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-8-Peca-pos-resseccao-585x468.jpg?v=1711471517 585w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-8-Peca-pos-resseccao.jpg?v=1711471517 1280w\" alt=\"\" width=\"1024\" height=\"819\" data-id=\"18413\" \/><\/a>\n<figcaption class=\"wp-element-caption\"><em>Figura 8<\/em><\/figcaption>\n<\/figure>\n<\/figure>\n<p>El examen anatomopatol\u00f3gico revel\u00f3 que se trataba de una lesi\u00f3n polipoide hiperpl\u00e1sica benigna, con estroma laxo (Fig.9-10). Las estructuras glandulares estaban hiperpl\u00e1sicas, variando de tama\u00f1o y ocasionalmente dilatadas qu\u00edsticamente, sin presentar atipias. El diagn\u00f3stico es compatible con p\u00f3lipo hamartomatoso juvenil.<\/p>\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-9-Anatomopatologico.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18416\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-9-Anatomopatologico.jpg\" sizes=\"(max-width: 605px) 100vw, 605px\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-9-Anatomopatologico.jpg?v=1711471598 605w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-9-Anatomopatologico-259x300.jpg?v=1711471598 259w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-9-Anatomopatologico-585x677.jpg?v=1711471598 585w\" alt=\"\" width=\"605\" height=\"700\" data-id=\"18416\" \/><\/a>\n<figcaption class=\"wp-element-caption\"><em>Figura 9<\/em><\/figcaption>\n<\/figure>\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-10-Anatomopatologico-2.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18417\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-10-Anatomopatologico-2.jpg\" sizes=\"(max-width: 720px) 100vw, 720px\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-10-Anatomopatologico-2.jpg?v=1711471598 720w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-10-Anatomopatologico-2-217x300.jpg?v=1711471598 217w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2024\/03\/FOTO-10-Anatomopatologico-2-585x808.jpg?v=1711471598 585w\" alt=\"\" width=\"720\" height=\"995\" data-id=\"18417\" \/><\/a>\n<figcaption class=\"wp-element-caption\"><em>Figura 10<\/em><\/figcaption>\n<\/figure>\n<\/figure>\n<h2 id=\"h-revisao-de-literatura\" class=\"wp-block-heading\"><strong>Revis\u00e3o de la literatura<\/strong><\/h2>\n<p>Las principales causas de hemorragia digestiva baja en ni\u00f1os de 2 a 12 a\u00f1os incluyen fisura anal, p\u00f3lipo juvenil, enterocolitis infecciosa y enfermedad inflamatoria intestinal (EII). M\u00e1s raramente, pueden estar relacionadas con \u00falcera rectal solitaria, duplicaci\u00f3n intestinal, p\u00farpura de Henoch-Sch\u00f6nlein, s\u00edndrome ur\u00e9mico hemol\u00edtico y malformaci\u00f3n vascular del colon.<\/p>\n<p data-start=\"846\" data-end=\"1317\">La presencia de un p\u00f3lipo hamartomatoso juvenil solitario (espor\u00e1dico) en ni\u00f1os menores de 10 a\u00f1os tiene una incidencia de hasta el 2%. El t\u00e9rmino &#8220;juvenil&#8221; se refiere al tipo anatomopatol\u00f3gico del p\u00f3lipo y no a la edad de aparici\u00f3n. Aunque son infrecuentes, tambi\u00e9n se han descrito casos en adultos. Estos p\u00f3lipos no son neopl\u00e1sicos y presentan, histol\u00f3gicamente, espacios qu\u00edsticos dilatados, inflamaci\u00f3n, aumento de la vascularizaci\u00f3n y \u00e1reas de destrucci\u00f3n epitelial.<\/p>\n<p data-start=\"1319\" data-end=\"1904\">Pueden distribuirse en cualquier segmento del colon, con predilecci\u00f3n por el hemicol\u00f3n izquierdo, siendo la localizaci\u00f3n rectosigmoidea la m\u00e1s com\u00fan. El tipo pediculado es el m\u00e1s frecuente. A pesar del nombre &#8220;p\u00f3lipos juveniles solitarios&#8221;, pueden presentarse como \u00fanicos o en n\u00famero de hasta cinco p\u00f3lipos, y el 50% de los ni\u00f1os con esta condici\u00f3n presentan m\u00e1s de un p\u00f3lipo. La verdadera incidencia de los p\u00f3lipos juveniles solitarios est\u00e1 subestimada debido a su presentaci\u00f3n cl\u00ednica discreta y, por lo general, indolora, adem\u00e1s de la dificultad de acceso a un examen confirmatorio.<\/p>\n<p data-start=\"1906\" data-end=\"2093\">El tipo pediculado es el m\u00e1s com\u00fan. Eventualmente, puede producirse una torsi\u00f3n sobre su propio eje y autoamputaci\u00f3n del p\u00f3lipo, lo que conlleva a una hemorragia, que puede ser abundante.<\/p>\n<p data-start=\"2095\" data-end=\"2532\">En el examen, el tama\u00f1o var\u00eda entre 1 y 3 cm de di\u00e1metro, con friabilidad asociada, lo que provoca sangrado rectal. Puede haber prolapso del p\u00f3lipo a trav\u00e9s del ano y, en raras ocasiones, dolor abdominal. Un tercio de los ni\u00f1os se presenta con anemia microc\u00edtica como consecuencia del sangrado cr\u00f3nico, hecho que puede inducir err\u00f3neamente al diagn\u00f3stico de enfermedad inflamatoria intestinal y retrasar la solicitud de una colonoscopia.<\/p>\n<p data-start=\"2534\" data-end=\"3170\">Es esencial destacar que el p\u00f3lipo hamartomatoso juvenil solitario difiere del s\u00edndrome de poliposis juvenil familiar (SPJF). El SPJF tambi\u00e9n se caracteriza por la presencia de p\u00f3lipos hamartomatosos, pero se trata de una enfermedad gen\u00e9tica autos\u00f3mica dominante, causada por mutaciones en los genes <em data-start=\"2834\" data-end=\"2841\">SMAD4<\/em> y <em data-start=\"2844\" data-end=\"2852\">BMPR1A<\/em>, que conlleva un riesgo aumentado de desarrollar c\u00e1ncer en el tracto gastrointestinal a lo largo de la vida. El SPJF abarca el S\u00edndrome de Poliposis Juvenil, el S\u00edndrome de Peutz-Jeghers y el S\u00edndrome del Tumor Hamartoma PTEN. El diagn\u00f3stico del SPJF requiere cumplir uno de los siguientes criterios:<\/p>\n<ul class=\"wp-block-list\">\n<li>1) m\u00e1s de 5 p\u00f3lipos juveniles en el colon y\/o recto;<\/li>\n<li>2) m\u00faltiples p\u00f3lipos juveniles a lo largo del tracto gastrointestinal;<\/li>\n<li>3) cualquier n\u00famero de p\u00f3lipos en presencia de antecedentes familiares.<\/li>\n<\/ul>\n<p data-start=\"3373\" data-end=\"3547\">El SPJF familiar es una condici\u00f3n precancerosa, que se distingue claramente del p\u00f3lipo hamartomatoso solitario, que es espor\u00e1dico, benigno y con bajo riesgo de malignizaci\u00f3n.<\/p>\n<p data-start=\"3549\" data-end=\"4320\">La colonoscopia es una herramienta ampliamente utilizada en todo el mundo para diagnosticar hemorragias gastrointestinales bajas y, con frecuencia, act\u00faa tambi\u00e9n como m\u00e9todo terap\u00e9utico en muchos de estos casos. No obstante, los ex\u00e1menes endosc\u00f3picos en pediatr\u00eda presentan particularidades que exigen cuidados m\u00ednimos esenciales, debiendo realizarse en hospitales que cuenten con servicios de pediatr\u00eda y anestesiolog\u00eda adecuados, as\u00ed como con respaldo multidisciplinario indispensable para el manejo de posibles complicaciones, especialmente en los casos de endoscopia terap\u00e9utica. Adem\u00e1s, una adecuada preparaci\u00f3n col\u00f3nica es otro aspecto crucial que puede representar un desaf\u00edo, lo que puede retrasar o incluso impedir el acceso al examen, diagn\u00f3stico y tratamiento.<\/p>\n<p data-start=\"4322\" data-end=\"4461\">Como tratamiento est\u00e1ndar, se recomienda la remoci\u00f3n de estos p\u00f3lipos por v\u00eda endosc\u00f3pica, utilizando la t\u00e9cnica y los recursos apropiados.<\/p>\n<h2 id=\"h-conclusao\" class=\"wp-block-heading\"><strong>Conclusi\u00f3n<\/strong><\/h2>\n<p class=\"has-pale-ocean-gradient-background has-background\">A investiga\u00e7\u00e3o del sangrado rectal persistente en ni\u00f1os menores de 10 a\u00f1os debe incluir la realizaci\u00f3n de una colonoscopia. En presencia de un p\u00f3lipo hamartomatoso juvenil espor\u00e1dico, tras su remoci\u00f3n completa, dado el bajo riesgo de transformaci\u00f3n maligna, no se justifica repetir colonoscopias de forma rutinaria ni la derivaci\u00f3n para asesoramiento gen\u00e9tico, eliminando la necesidad de cualquier seguimiento posterior adicional.<\/p>\n<h2 id=\"h-referencias\" class=\"wp-block-heading\"><strong>Referencias<\/strong><\/h2>\n<ol class=\"wp-block-list\">\n<li>Yachha SK, Khanduri A, Sharma BC, Kumar M. Gastrointestinal bleeding in children. Journal of Gastroenteroly and Hepatology. 1996;11:903\u2013907.<\/li>\n<li>Colonoscopic finding in children with lower gastrointestinal complaints. Journal of Gastroenteroly and Hepatology. 2023 Nov 8;7(12):863-868.<\/li>\n<li>Current role of colonoscopy in infants and young children: a multicenter study.\u00a0 BMC Gastroenterology. 2019; 19: 149.<\/li>\n<li>A solitary rectal juvenile polyp with chicken skin-like changes in the surrounding mucosa in an adult: A case report. Experimental and\u00a0 Therapeutic Medicine. 2023 Apr; 25(4): 185.<\/li>\n<li>Cancer risk and mortality in patients with solitary juvenile polyps\u2014A nationwide cohort study with matched controls. United European Gastroenterology Journal. jul, 2023.<\/li>\n<li>Figueiredo LZ, Martins BC. S\u00edndrome da Polipose Juvenil. Endoscopia Terap\u00eautica. 2022; vol 1. Dispon\u00edvel em: endoscopiaterapeutica.net\/pt\/assuntosgerais\/sindrome-da-polipose-juvenil.<\/li>\n<\/ol>\n<h2 id=\"h-como-citar-este-artigo\" class=\"wp-block-heading\"><strong>C\u00f3mo citar este art\u00edculo<\/strong><\/h2>\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Vieira BB; Penaloza CSQ; Gamarra ACQ. P\u00f3lipo hamartomatoso juvenil solitario pedi\u00e1trico: relato de caso y revisi\u00f3n de literatura. Endoscopia Terap\u00e9utica 2025, Vol II. Disponible en: <a href=\"_wp_link_placeholder\" data-wplink-edit=\"true\">https:\/\/endoscopiaterapeutica.net\/es\/casosclinicos\/polipo-hamartomatoso-juvenil-solitario-pediatrico-relato-de-caso-y-revision-de-literatura\/<\/a><\/p>\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><\/figure>\n<\/figure>\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Paciente de sexo femenino, 4 a\u00f1os de edad, presentando episodios recurrentes de sangrado rectal&hellip;<\/p>\n","protected":false},"author":5668,"featured_media":18873,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[150],"tags":[],"ano":[750],"tipo":[],"volume":[147],"class_list":["post-18875","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-casosclinicos","ano-750","volume-volumen-ii"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>P\u00f3lipo hamartomatoso juvenil solitario pedi\u00e1trico: relato de caso y revisi\u00f3n de literatura &#8226; 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