Cellular Angiofibroma of the Perianal Space: MR Imaging and Pathologic Correlation

A variety of benign and malignant tumor can occur in the perianal space. Among them, cellular angiofibroma is a rare tumor that belongs to fibroblastic/myofibroblastic tumors of the WHO classification, sometimes called as "angiomyofibroblastoma-like tumor". Cellular angiofibroma can be found at various anatomic sites such as the vulva, perineum, genital tract, and inguinal regions with approximately equal gender ratio. This tumor is usually a well-circumscribed mass showing isosignal intensity to muscle on T1-weighted images. On T2-weighted images, cellular angiofibroma may show as a mass with inhomogeneous signal intensity depending on amount of composed spindle cell, collagenous stroma, myxoid matrix, and fat tissue; however it is characterized by low signal intensity due to fibrous tissues. This highly vascular mass shows strong enhancement on post contrast images. Recommended treatment is simple local excision and no recurrence or metastasis have been reported up to date.

Round Ligament Varicosities During Pregnancy: Case Report

There are various causes of a painful palpable mass in the groin during pregnancy. The differential diagnoses of an inguinal mass include hernia, lymphadenopathy, mesothelial cyst, cystic lymphangioma, neoplasms (lipoma, leiomyoma and sarcoma), endometriosis, embryonic remnants and round ligament varicosities. Among them, round ligament varicosities can be easily misdiagnosed as an inguinal hernia in a pregnant woman. These lesions should be managed conservatively because they resolve spontaneously during the postpartum period. Ultrasonography can help make the diagnosis of round ligament varicosities and so prevent unnecessary surgical intervention and the associated morbidity. Herein we report on a case of round ligament varicosities that presented during pregnancy and this condition was readily diagnosed via Doppler sonography.