Sarcoma pleomórfico indiferenciado de alto grado/ fibrohistiocitoma maligno asociado a tofo gotoso. presentación de un caso

Susana Szlabi; Jorge O. Flores; Ana L. de Diller; Marta B. Cabrera

doi:10.31053/1853.0605.v69.n4.20886

Authors

Susana Szlabi 1ra Cátedra de Patología, Facultad de Ciencias Médicas. Universidad Nacional de Córdoba.
Jorge O. Flores Servicio de Patología. Hospital Aeronáutico. Córdoba.
Ana L. de Diller Servicio de Patología, Hospital Privado de Córdoba.
Marta B. Cabrera Servicio de Patología. Hospital Aeronáutico. Córdoba.

DOI:

https://doi.org/10.31053/1853.0605.v69.n4.20886

Keywords:

gouty tophus, malignant fibrous histiocytoma, undifferentiated high grade pleomorphic sarcoma

Abstract

Background: Gout is a metabolic disease by deposition of uric acid crystals, which undertakes joint and soft tissue in both acute and chronic stages. Is a rare event the onset of a tumor in the site of the lesion.
Objective: To present a rare case of association between sarcoma and tophi.
Methods: 83 year old man who consulted for tumor in his left elbow about 40 years of evolution, which spontaneously started to hurt. With the presumptive diagnosis of tophi treated surgically. The lesion recurred after 60 days, reintervention and radiotherapy was performed for diagnosis of malignant mesenchymal tumor associated with tophi. At 10 months developed ipsilateral nodal metastases, died within 2 years of the initial consultation.
Results: The diagnosis of the first material resected was tophi. In the reintervention material was diagnosed mesenchymal spindle cell high grade neoplasm associated with tophi; immunohistochemistry revealed: vimentin + / +, MYO D1 - / - ASMA - / -, FVIII - / -, A1ATT - / -, CD68-/ -, S100-/ - with final diagnosis the undifferentiated high grade pleomorphic sarcoma.
Conclusions: It is uncommon for gouty tophi are associated with other diseases and even fewer do so to tumors. In the literature have reported three previous cases concurrent with neoplasms, which were angiosarcoma, giant cell tumor and malignant fibrous histiocytoma. The latter have a high tendency to recur locally and have ability to distant metastases, especially lung and regional lymph nodes.

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