A solitary encapsulated pelvic aggressive angiomyxoma

Abstract

Aggressive angiomyxoma (AAM) was first reported in 1983 as a distinct, slow growing, benign but locally infiltrative, soft tissue tumour. It usually arises in the pelvic and perineal organs, mostly in women. A 47-year-old woman was found to have a large encapsulated retroperitoneal aggressive angiomyxoma. The mass was completely excised via abdomino-perineal approach, and no recurrence noted on MRI at 19 months' follow-up. The encapsulation of this tumour together with other reported rare presentations, suggest an isolated mesenchymal cell origin. A review of the literature is provided.

Extragenital Aggressive Angiomyxoma of the Axilla and the Chest Wall

“…However, encapsulated AAMs have also been reported [1,6,7] .The present case was different, as the tumour was well circumscribed. The histopathological features include hypocellularity, hapahazardly arranged blood vessels of varying calibres, a myxoid stroma with collagen fibres and extravasated erythrocytes.…”

Angiomixoma Pélvico Asociado a Endometriosis Infiltrativa Profunda. Reporte de un caso

“…El angiomixoma es una neoplasia de origen mesenquimático, de comportamiento agresivo, de aparición más frecuente en mujeres en edad reproductiva, premenopáusicas (Steeper & Rosai, 1983;Linares Espinos et al, 2014). Es una lesión muy infrecuente, con alrededor de 300 casos descritos en la literatura (Adwan et al, 2004;Idrees et al, 2006;Haldar et al, 2010;Artigas Raventós et al, 2016). Son tumores de celularidad escasa, de estroma muy vascularizado y aspecto mixoide.…”

Aggressive Angiomyxoma: An Unusual Female Pelvic Tumour. Report of Three Cases and Review of the Literature

“…Unlike malignant neoplasms, do not metastasize, and, histologically, they demonstrate bland nuclei without atypia or mitotic activity. However it usually tends locally to recur [10]. Correlation between tumour size and subsequent risk of recurrence has not been demonstrated [11].…”