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Case Reports
. 2019 Jan-Mar;35(1):81-82.
doi: 10.4103/iju.IJU_221_18.

Prominent swelling on erection: Perineal angiomyxoma as a rare entity

Affiliations
Case Reports

Prominent swelling on erection: Perineal angiomyxoma as a rare entity

Shantanu Tyagi et al. Indian J Urol. 2019 Jan-Mar.

Abstract

Perineal angiomyxoma is a rare entity, more commonly seen in females. We report a case of a 44 year old male who presented with a perineal swelling which became prominent with penile erections. Magnetic Resonance Imaging (MRI) revealed a T1 hypointense and T2 hyperintense midline lesion (4.6 × 2.5 × 5 cm) in relation to corpus spongiosum, with ill defined fat planes with the bulbospongiosus muscle and progressive enhancement on dynamic contrast sequence. A differential diagnosis of soft tissue sarcoma or hemangioma was made and the mass was completely excised via a midline perineal incision. The histopathology revealed features consistent with angiomyxoma.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Contrast-enhanced magnetic resonance imaging of the patient showing hyperintense lesion in the perineum on T2-weighted image (a) Axial; (b) Sagittal)
Figure 2
Figure 2
Intra-operative photograph showing (a) Perineal mass and (b) its relation to bulbospongiosus muscle
Figure 3
Figure 3
(a) Gross specimen showing well-encapsulated soft spongy mass. (b) Photomicrograph showing encapsulated tumor with spindle-shaped and stellate cells embedded in myxoid background. Tumor cells are elongated and have vesicular nuclei and moderate cytoplasm with intervening vessels consistent with angiomyxoma

References

    1. Steeper TA, Rosai J. Aggressive angiomyxoma of the female pelvis and perineum. Report of nine cases of a distinctive type of gynecologic soft-tissue neoplasm. Am J Surg Pathol. 1983;7:463–75. - PubMed
    1. Micci F, Brandal P. Soft tissue tumors: Aggressive angiomyxoma. Atlas Genet Cytogenet Oncol Haematol. 2007;11:340–3.
    1. Outwater EK, Marchetto BE, Wagner BJ, Siegelman ES. Aggressive angiomyxoma: Findings on CT and MR imaging. AJR Am J Roentgenol. 1999;172:435–8. - PubMed
    1. van Roggen JF, van Unnik JA, Briaire-de Bruijn IH, Hogendoorn PC. Aggressive angiomyxoma: A clinicopathological and immunohistochemical study of 11 cases with long-term follow-up. Virchows Arch. 2005;446:157–63. - PubMed

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