A CASE OF AGGRESSIVE ANGIOMYXOMA. DIFFERENTIAL DIAGNOSIS OF ABANDONED NONORGAN ORGAN TUMORS (LITERATURE REVIEW WITH THEIR OWN CLINICAL OBSERVATIONS)

Abstract

Aggressive angiomyxoma is a rare pelvic-perineal tumor that affects mainly women aged 30-50 years. It can simulate a bartholine cyst, abscess, lipoma, simple labial cyst or other soft tissue tumors of the pelvis. The main features of angiomyxoma are asymptomatic course and absence of metastasis in the presence of a tendency to deep invasion and relapses after surgical treatment. The article describes a clinical case of aggressive angiomyxoma in a 33-year-old patient who was admitted to the emergency hospital with a suspected right sciatic hernia. According to the results of clinical and radiological examination the formation of presacral space was detected spreading to the m. levator ani on the right and into the tissue of the right ischiorectal fossa, infiltrating them. The specific features couldnt be identified using formal signs which are distinctive for specific type of neoplasms at initial stage of the diagnosis. The diagnosis was made as a result of morphological analysis of the resection material of the tumor after surgery. The relapse wasnt detected in the following 6 months. Assuming the high risk of angiomix progression the dynamic monitoring was continued. This study and literature data have demonstrated the typical difficulties of differential diagnosis and prognosis of the disease, the need for a comprehensive approach using multiparametric magnetic resonance imaging, both at the initial stages of the examination and in monitoring the effectiveness of treatment.