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Case Reports
. 2014 Nov;8(11):RD04-6.
doi: 10.7860/JCDR/2014/8697.5164. Epub 2014 Nov 20.

Imaging Diagnosis of Urethral Leiomyoma, usual Tumour at an Unusual Location

Ritu Verma  1 , Shibani Mehra  2 , U C Garga  3 , Nishchint Jain  1 , Krishna Bhardwaj  1
Affiliations
Case Reports

Imaging Diagnosis of Urethral Leiomyoma, usual Tumour at an Unusual Location

Ritu Verma et al. J Clin Diagn Res. 2014 Nov.

Abstract

Leiomyomas are benign tumours of smooth muscle origin and are the most common uterine masses in females of reproductive age group. Extrauterine leiomyomas are also encountered occassionally and most commonly they involve the genitourinary tract. Leiomyomas arising from urethral smooth muscle are exceptionally unusual which can pose a diagnostic dilemma. Patients usually present with urinary complaints and an intraluminal soft tissue mass bulging from urethral meatus. We are presenting the imaging findings of leiomyoma of distal urethra presenting as a perineal mass with histopathological correlation.

Keywords: Female urethra; Leiomyoma; MRI; Perineum.

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Figures

[Table/Fig-1]:
[Table/Fig-1]:
Submucosal perineal mass in anterior urogenital triangle located away from vaginal orifice. The urethral meatus is stretched, located on the postero-inferior aspect,
[Table/Fig-2]:
[Table/Fig-2]:
Transperineal USG images in axial (A & B) and sagittal (C) plane showing well defined iso to hypoechoic homogenous mass, M with whorled appearance, abutting the anterior urethral wall, U with significant internal vascularity on Colour Doppler images (D)
[Table/Fig-3]:
[Table/Fig-3]:
T1W (TR:557, TE:10) axial (A) and T2W FS (TR:4280, TE: 105) axial and coronal images (B & C) showing homogenous well encapsulated perineal mass appearing isointense on T1 and intermediate signal on T2W in continuity with anterior urethral wall without intervening fat plane. M = Mass, Urethra (↗), vagina (*).,
[Table/Fig-4]:
[Table/Fig-4]:
Contrast enhanced T1W (TR: 557, TE:10) MRI images in axial and sagittal planes showing intense homogenous contrast enhancement of the mass. M = Mass, vagina (*)
[Table/Fig-5]:
[Table/Fig-5]:
Cut section image of the gross specimen (A) showing well encapsulated solid homogenous mass without any haemorrhage or cystic change. Photomicrograph (B) showing spindle cell tumour arranged in short fascicles with large areas of hyalinization in between suggestive of leiomyoma
See this image and copyright information in PMC

References

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