Año 2023 / Volumen 115 / Número 4
Carta
Juvenile polyps with osseous metaplasia treated by endoscopic mucosal resection

214-215

DOI: 10.17235/reed.2023.9489/2023

Emanuel Dias, João Santos-Antunes, Margarida Marques, Elsa Fonseca, Joanne Lopes, Guilherme Macedo,

Resumen
A 17-year-old male with no previous medical history presented with a 1-year history of rectal bleeding, mucus discharge and occasional rectal prolapse. Colonoscopy revealed several polypoidal growth masses in the distal rectum, formed by multiple sessile polyps with a glistening mucus-covered surface and fleshy, friable appearance, that coalesced forming large conglomerates. Given their complexity and large size, piecemeal endoscopic mucosal resection of the rectal lesions was performed and histopathological examination revealed ulcerated polypoid mucosa with mixed inflammatory cell infiltrate in the lamina propria and dilated cystic mucus-filled glands. Remarkably, bony trabeculae surrounded by osteoblastic cells were also seen. These findings were consistent with juvenile polyps with foci of osseous metaplasia. Osseous metaplasia has been described in a wide variety of tissue types, such as prostate, uterus, breasts, lungs and urinary tract, with respect to both neoplastic and non-neoplastic conditions. However, it is exceedingly rare in colonic polyps and, to the best of our knowledge, only 9 cases have been described in juvenile polyps.
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Bibliografía
1. Razafimahefa J, Gosset C, Mongiat-Artus P, et al. Stromal osseous metaplasia in urothelial carcinoma of the bladder: a rare case report and literature review. Diagn Pathol. 2019;14(1):75.
2. Calcerrada Alises E, Ruiz Tovar J, García Ureña MÁ. Bone metaplasia in a rectal polyp. Rev Esp Enferm Dig. 2021 Jul;113(7):548
3. Garg M, Kaur J, Bindroo S, et al. Metaplastic ossification in a juvenile rectal polyp: a rare histological finding. J Clin Diagn Res. 2013;7(5):908-10.
4. Chen YW, Tu JF, Shen WJ, et al. Diagnosis and management of a solitary colorectal juvenile polyp in an adult during follow-up for ulcerative colitis: A case report. World J Gastroenterol. 2020;26(8):877-82.
5. Otake K, Uchida K, Inoue M, et al. A large, solitary, semipedunculated gastric polyp in pediatric juvenile polyposis syndrome. Gastrointest Endosc. 2011;73(6):1313-4.
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Instrucciones para citar
Dias E, Santos-Antunes J, Marques M, Fonseca E, Lopes J, Macedo G, et all. Juvenile polyps with osseous metaplasia treated by endoscopic mucosal resection. 9489/2023


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Ficha Técnica

Recibido: 24/01/2023

Aceptado: 26/01/2023

Prepublicado: 31/01/2023

Publicado: 03/04/2023

Tiempo de prepublicación: 7 días

Tiempo de edición del artículo: 69 días


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