Year 2023 / Volume 115 / Number 11
Letter
Primary malignant melanoma of the colon and the importance of an adequate anatomopathological analysis

666-667

DOI: 10.17235/reed.2023.9956/2023

María Desirée García García, María Dolores Galván Fernández, Sandra Van de Wiel Fernández, Jesús Machuca Aguado, Ángel Caunedo Álvarez, Manuel Rodríguez-Téllez,

Abstract
Primary malignant melanoma of the colon is an extremely rare tumor due to the absence of melanoblasts in this segment of the digestive tract. We report the case of a patient presenting an ulcerated lesion with a neoplastic appearance in the dentate line during a coloscopy. After chemotherapy and radiotherapy, surgical amputation was performed. The study of the surgical specimen described an invasive malignant melanoma located in the submucosa without involvement of the overlying epithelium or the muscularis propria, nor vascular or lymph node invasion, and with tumor free margins. The patient was presented to the melanoma committee, which determited follow up in consultations. This case strengthens the importance of a good anatomopathological study to prevent delays in diagnosis and appropriate treatment.
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References
1. Miliaras, S., Ziogas, I. A., Mylonas, K. S., & Papadopoulos, V. N. (2018). Primary malignant melanoma of the ascending colon. BMJ case reports, 2018, bcr2017223282. https://doi.org/10.1136/bcr-2017-223282
2. Xie, J., Dai, G., & Wu, Y. (2022). Primary colonic melanoma: a rare entity. World journal of surgical oncology, 20(1), 256. https://doi.org/10.1186/s12957-022-02721-z
3. Escribano-Pons, M. À., Segura Sampedro, J. J., Pineño Flores, C., Rodriguez Pino, J. C., González Argente, F. X., & Morales Soriano, R. (2021). Abdominal metastatic melanoma invading the transverse colon and stomach. Revista espanola de enfermedades digestivas, 113(12), 848–849. https://doi.org/10.17235/reed.2021.8052/2021
4. Khalid, U., Saleem, T., Imam, A. M., & Khan, M. R. (2011). Pathogenesis, diagnosis and management of primary melanoma of the colon. World journal of surgical oncology, 9, 14. https://doi.org/10.1186/1477-7819-9-14
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Citation tools
García García M, Galván Fernández M, Van de Wiel Fernández S, Machuca Aguado J, Caunedo Álvarez Á, Rodríguez-Téllez M, et all. Primary malignant melanoma of the colon and the importance of an adequate anatomopathological analysis . 9956/2023


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Publication history

Received: 13/09/2023

Accepted: 26/09/2023

Online First: 26/10/2023

Published: 13/11/2023

Article Online First time: 43 days

Article editing time: 61 days


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