A Diagnostic Mistake, Treated With Shock Waves: Dabska Tumor

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Abstract

Papillary intralymphatic angioendothelioma (PILA) or Dabska tumor (DT) is a low-grade angiosarcoma. This vascular tumor usually has a higher incidence during childhood and occurs the most in the extremities and trunk. DT is locally aggressive, and no high metastatic potential is reported. We present a case of a 34-year-old female patient, treated with extracorporeal shock wave therapy (ESWT) for a misdiagnosis of left patellar tendinopathy. Due to the persistence and intensification of her symptoms, she is re-evaluated by Orthopedic Specialists. In magnetic resonance imaging studies, a mass was identified in the left external femoral condyle measuring approximately 10 mm with significant diffuse bone edema. Surgical resection was performed, and a PILA was identified by immunohistochemistry. In this case report, the complications of the use of focused ESWT and the histopathological characteristics of DT are discussed. Keywords: Dabska tumor, Intralymphatic papillary angioendothelioma, Focused shock waves, Complications