Tumor del estroma gastrointestinal en el tabique rectovaginal, un desafío diagnóstico

Gastrointestinal stromal tumors (GIST) of the rectovaginal septum are highly infrequent entities that pose a challenge due to the lack of diagnostic suspicion. These tumors are often misdiagnosed as leiomyomas or leiomyosarcomas because of the similarity in their structure and size. Histological analysis and immunochemistry play a key role in the choice of therapeutic strategy in these patients. We report the case of a 75-year-old woman with a GIST tumor in the rectovaginal septum. Tumor enucleation was performed and subsequent treatment with imatinib mesylate (Gleevec®) was established.