Aggressive angiomyxoma of the female pelvis: sonographic, CT, and MR findings.

Freeby, J A; Win, Thuzar; Gadwood, Kathleen A.

doi:10.2214/ajr.171.2.9694499

Cited by 20 publications

(4 citation statements)

References 9 publications

(1 reference statement)

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“…The MRI features of perineal AAMs consist of isointense or low-signal-intensity fi ndings on T1-weighted images and high-signal-intensity fi ndings on T2-weighted images. [7][8][9] There is heterogeneous enhancement of the tumor after administration of contrast material. A swirled or layered appearance on contrast-enhanced images and T2-weighted images has been reported as a typical feature of AAMs.…”

Section: Discussionmentioning

confidence: 99%

“…A swirled or layered appearance on contrast-enhanced images and T2-weighted images has been reported as a typical feature of AAMs. 7,8 On MRI, AAMs typically do not show an infi ltrative pattern and tend to displace and grow around adjacent structures. When this infi ltrative pattern is visible on imaging studies, as shown by Stewart and McCarthy, 9 especially when swirled or layered signal intensity is well demonstrated on the fat-suppressed T2-weighted and postcontrast T1-weighted images, the most likely diagnosis should be AAM rather than AMFB.…”

Section: Discussionmentioning

confidence: 99%

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Large paravaginal angiomyofibroblastoma: magnetic resonance imaging findings

Geng

Hu²,

Wang

2011

Jpn J Radiol

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Angiomyofibroblastoma (AMFB) is a rare, benign, mesenchymal tumor that occurs mainly in the female lower genital tract. We report on a large posterior paravaginal AMFB that presented as a buttock mass, describing the magnetic resonance imaging (MRI) features of the disease. The tumor displays heterogeneous signal intensity on T2-weighted MRI and fast and persistent inhomogeneous enhancement on dynamic gadolinium-enhanced MRI.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Large paravaginal angiomyofibroblastoma: magnetic resonance imaging findings

Geng

Hu²,

Wang

2011

Jpn J Radiol

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“…Color Doppler imaging reveals abundant blood flow signals within and surrounding the tumor, while pulse Doppler imaging can detect arterial bloodstream spectrum. The obvious deformation of the lesion can be observed through probe pressure in real-time ultrasonography ( 21 – 24 ). In our study, one case occurred in the left rectal fossa and vulva with the typical ultrasound features described above, and AAM was accurately diagnosed by the sonographer.…”

Section: Discussionmentioning

confidence: 99%

Misleading clinical and imaging features in atypical aggressive angiomyxoma of the female vulvovaginal or perianal region: report of three cases and review of the literature

Zhang,

Liu,

Peng

2024

Front. Oncol.

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ObjectivesAggressive (deep) angiomyxoma (AAM) is a rare mesenchymal tumor that typically originates from the vulvovaginal region, perineum, and pelvis in adult women. The objective of this case report and literature review is to comprehensively analyze the clinical, imaging, and pathological characteristics of atypical AAM in the female lower genital tract and pelvic floor in order to minimize preoperative misdiagnosis or missed diagnosis and ultimately optimize the clinical management strategy.MethodsThe data of three cases with atypical AAM, which demonstrate similarities with other lesions observed in the female lower genital tract over the past 1.5 years, were retrospectively described. This description included clinical management, images and reports of ultrasonography (US) and magnetic resonance imaging (MRI), clinicopathological features, follow-up, and outcomes. In the Discussion section, a review of the literature on MEDLINE (PubMed) and Web of Science from the past 50 years was conducted.ResultsThe three cases all underwent preoperative ultrasonography, and two of them also underwent preoperative MRI examination. Complete resection of the lesions was performed in all three cases, followed by postoperative pathological examination. The histopathology of these three cases revealed invasive angiomyxoma, as confirmed by immunohistochemical staining, which demonstrated positive expression of desmin, vimentin, estrogen, and progesterone receptors. The patients experienced a smooth postoperative recovery. Ultrasound had a diagnostic accuracy rate of 100% (3/3) for locating and determining the extent of the lesions; however, its specific diagnostic accuracy rate for identifying the pathological type was only 33% (1/3). In contrast, MRI had a diagnostic accuracy rate of 100% (2/2) for locating and determining the extent of lesions but did not show any specific diagnostic accuracy for identifying the pathological types.ConclusionsOur findings indicate that even if a vulvovaginal lesion presents with a superficial location, small size, limited scope, and regular shape, suspicion of atypical AAM should arise when palpation reveals toughness, tensility, and deformability under pressure. US reveals a well-defined hypoechoic to anechoic mass with uniformly distributed coarse dot echoes, with or without detectable intratumoral blood flow signal. MRI shows prolonged T1 and T2 signals with inhomogeneous enhancement and evident diffusion restriction on diffusion-weighted imaging (DWI).

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“…The high signal intensity seen on T2-weighted images reflects the high myxomatous content of these tumors (4). A whorled pattern of signal intensity on T2-weighted images has been reported as a typical feature of aggressive angiomyxomas (5,6). These tumors also show contrast enhancement that reflects their inherent vascularity.…”

Section: Discussionmentioning

confidence: 97%

Case 106: Aggressive Angiomyxoma

Sinha¹,

Verma²

2007

Radiology

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A 46-year-old woman presented with perineal discomfort, dyspareunia, and a slowly growing mass in the perineal region. The signs and symptoms had been present for the past 6 months and had initially begun with intermittent swelling in the perineum. The patient's medical history included total abdominal hysterectomy for fibroids. The ovaries were preserved.At examination, swelling overlying the left ischial tuberosity was visible. A vaginal examination revealed a posterior mass in the left labia majorum. The mass felt cystic at palpation. Magnetic resonance (MR) imaging of the pelvis was performed.

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Aggressive angiomyxoma of the female pelvis: sonographic, CT, and MR findings.

Cited by 20 publications

References 9 publications

Large paravaginal angiomyofibroblastoma: magnetic resonance imaging findings

Large paravaginal angiomyofibroblastoma: magnetic resonance imaging findings

Misleading clinical and imaging features in atypical aggressive angiomyxoma of the female vulvovaginal or perianal region: report of three cases and review of the literature

Case 106: Aggressive Angiomyxoma

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