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Case Reports
. 2021 Jun 30;14(6):e241550.
doi: 10.1136/bcr-2021-241550.

Aggressive angiomyxoma of left buttock

Hassan Akram  1 , Deanna Tran  2 , Rafey Rehman  2 , Zaid Al-Wahab  2
Affiliations
Case Reports

Aggressive angiomyxoma of left buttock

Hassan Akram et al. BMJ Case Rep. .

Abstract

Aggressive angiomyxoma (AA) is a rare mesenchymal tumour that is characterised by increased incidence in women compared with men, local invasion to the surrounding tissue and high recurrence rate. A premenopausal woman presented to clinic with pelvic pressure, intermittent tingling in the thigh and pressure emptying the bladder. CT scan, vaginal and gluteal biopsies, and MRI scan were performed to conclude a final diagnosis of AA. The patient underwent complete resection of the mass. The mass tested positive for oestrogen receptor and progesterone receptor. The patient received leuprolide postoperatively to prevent recurrence. AA should be considered as a differential diagnosis for a pelvic and perineal mass. Patients should be warned of high recurrence rate, necessity of surgical removal and long-term hormonal treatment.

Keywords: cancer - see oncology; cancer intervention; gynecological cancer; obstetrics and gynaecology.

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Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1
Figure 1
CT scan in anterior–posterior (A) and transverse dimension (B) showing a 7.1 cm mass extending from the pelvic region to the gluteal region. CT scan in cross-section (C) showing a mass in the gluteal region.
Figure 2
Figure 2
MRI scan showing the mass 6.64×5.4×11.6 cm extending lateral to the bladder (A), cervix and rectum into the left buttock medially (B). MRI scan showing a serpentine structure measuring approximately 3.59×1.80×6.23 cm in transverse (C) and craniocaudal dimensions (D).
Figure 3
Figure 3
Left gluteal fold swelling (A). Identification of the mass which was located anterolaterally and very distinct with its soft fibrous character (B). Well-circumscribed and well-encapsulated fleshy tan gelatinous multilobulated mass measuring 17.4×10.7×2.2 cm (C).
Figure 4
Figure 4
Under high-powered microscopy, elongated fibroblast-like cells and a significant myxoid background.
See this image and copyright information in PMC

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