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Malignant “triton” tumor of the lower extremity with a history of fracture / Tumor «tritón» maligno de la extremidad inferior con antecedentes de fractura
Nóbrega Catelas, Diogo; Pita, Sérgio; Coelho, André; Oliveira, Vânia; Cardoso, Pedro.
Affiliation
  • Nóbrega Catelas, Diogo; Centro Hospitalar Universitário de Santo António. University of Porto. Porto. Portugal
  • Pita, Sérgio; Centro Hospitalar Universitário de Santo António. Department of Orthopedic Surgery. Porto. Portugal
  • Coelho, André; Centro Hospitalar Universitário de Santo António. Department of Pathology. Porto. Portugal
  • Oliveira, Vânia; Centro Hospitalar Universitário de Santo António. Department of Orthopedic Surgery. Porto. Portugal
  • Cardoso, Pedro; Centro Hospitalar Universitário de Santo António. Department of Orthopedic Surgery. Porto. Portugal
Rev. esp. patol ; 57(1): 59-63, ene.-mar. 2024. ilus
Article in En | IBECS | ID: ibc-EMG-543
Responsible library: ES1.1
Localization: ES15.1 - BNCS
ABSTRACT
Introduction Malignant triton tumor (MTT) is a rare and aggressive subtype of malignant peripheral nerve sheath tumor consisting of a neurogenic tumor with rhabdomyoblastic differentiation. Only 170 cases have been reported to date, two-thirds occurring in young patients with neurofibromatosis type 1 and the remaining third presenting as a sporadic tumor. Case presentation We present the case of a 49-year-old man with a sporadic grade 2 MTT of the lower limb which had had a previous tibial fracture. The patient underwent an above-knee amputation. Five months post-operatively metastases were present in the liver and vertebral column causing compression of the spinal cord, so decompressive radiotherapy and palliative chemotherapy were initiated. Conclusion Due to the precocious spread of the disease, we would suggest that adjuvant chemotherapy be considered for the eradication of micrometastases. To our knowledge, this is only the second reported case of an MTT arising in a site with a history of previous severe trauma. (AU)
RESUMEN
Introducción El tumor tritón maligno (MTT) es un subtipo raro y agresivo de tumor maligno de la vaina del nervio periférico que consiste en un tumor neurogénico con diferenciación rabdomioblástica. Hasta la fecha solo se han descrito 170 casos, dos tercios de ellos en pacientes jóvenes con neurofibromatosis tipo 1 y el tercio restante como tumor esporádico. Presentación del caso Presentamos el caso de un varón de 49 años con un MTT esporádico de grado 2 de la extremidad inferior que había tenido una fractura tibial previa. El paciente fue sometido a una amputación por encima de la rodilla. A los 5 meses del postoperatorio presentaba metástasis en el hígado y en la columna vertebral que causaban compresión de la médula espinal, por lo que se inició radioterapia descompresiva y quimioterapia paliativa. Conclusión Debido a la diseminación precoz de la enfermedad, sugerimos que se considere la quimioterapia adyuvante para la erradicación de las micrometástasis. Hasta donde sabemos, este es solo el segundo caso descrito de un MTT surgido en un lugar con antecedentes de traumatismo grave previo. (AU)
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Full text: 1 Collection: 06-national / ES Database: IBECS Main subject: Neurofibrosarcoma / Orthopedic Procedures / Anxiety / Osteitis / Patient Isolation / Precancerous Conditions / Health Personnel / Coronavirus Infections / Community Participation / Health Status Disparities Type of study: Clinical_trials / Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Aspects: Determinantes_sociais_saude / Equity_inequality / Patient_preference Limits: Humans / Male / Female / Adult / Aged / Adolescent / Child / Child, preschool / Infant / Newborn Country/Region as subject: Europa Language: En / Es Journal: Rev. esp. patol / An. pediatr. (2003. Ed. impr.) / Arch. bronconeumol. (Ed. impr.) / Enferm. glob / Gac. sanit. (Barc., Ed. impr.) / Med. oral patol. oral cir. bucal (Internet) / Rev. fitoter Year: 2022 / 2023 / 2024 / 2021 Document type: Article
Search on Google
Full text: 1 Collection: 06-national / ES Database: IBECS Main subject: Neurofibrosarcoma / Orthopedic Procedures / Anxiety / Osteitis / Patient Isolation / Precancerous Conditions / Health Personnel / Coronavirus Infections / Community Participation / Health Status Disparities Type of study: Clinical_trials / Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Aspects: Determinantes_sociais_saude / Equity_inequality / Patient_preference Limits: Humans / Male / Female / Adult / Aged / Adolescent / Child / Child, preschool / Infant / Newborn Country/Region as subject: Europa Language: En / Es Journal: Rev. esp. patol / An. pediatr. (2003. Ed. impr.) / Arch. bronconeumol. (Ed. impr.) / Enferm. glob / Gac. sanit. (Barc., Ed. impr.) / Med. oral patol. oral cir. bucal (Internet) / Rev. fitoter Year: 2022 / 2023 / 2024 / 2021 Document type: Article
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