Background: Tumors originating from the posterior bladder wall can be challenging to diagnose because they may mimic a mass from the uterine cervix. Atypical leiomyoma of the bladder trigone is extremely rare, with few reported cases, and requires caution during surgery to avoid damage to the adjacent ureter. Diagnostic surgery and confirmational pathology are essential to assess whether the tumor is malignant and relieve clinical symptoms. Herein, we describe a case of recurrent leiomyoma with focal atypia in the bladder trigone.
Case Summary: A 29-year-old woman with a uterine fibroid incidentally found at a regular checkup was referred to our hospital. Based on magnetic resonance imaging, either urinary bladder leiomyoma or protrusion of pedunculated uterine cervical fibroid into the bladder was suspected. This leiomyoma in the trigone of the bladder was completely excised by laparotomy, and the patient was discharged without complication. Follow-up outpatient ultrasonography identified tumor recurrence after four years. As focal atypia was identified previously, laparotomy was performed to confirm the pathology. A round solid mass was resected from the posterior bladder wall without injuring either ureteric orifice. This tumor was pathologically diagnosed as a leiomyoma without atypia. Three-year follow-up ultrasonography has revealed no recurrence.
Conclusion: Atypical leiomyoma in bladder trigone is rare and could be easily mistaken for fibroid in the uterine cervix. To confirm histopathology, surgical excision is mandatory and regular follow-up is necessary to detect recurrence.
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http://dx.doi.org/10.12998/wjcc.v10.i29.10728 | DOI Listing |
Cureus
November 2024
Obstetrics and Gynecology, Konan Medical Center, Kobe, JPN.
We present the first case of low-grade endometrial stromal sarcoma (ESS) invading a leiomyoma, which was difficult to diagnose preoperatively. A 49-year-old multiparous woman was referred to our institution due to the enlargement of an old leiomyoma after menopause. Transvaginal ultrasonography revealed a 40-mm lesion in the myometrium of the uterine body with calcification and edema.
View Article and Find Full Text PDFRadiol Case Rep
February 2025
Radiology Department of Surgery, Medicine and Pharmacy, University of Sassari, Viale S. Pietro, Sassari, Italy.
Primary pelvic peritoneal masses, not arising from major organs, are uncommon in adults. Leiomyomas are a group of benign smooth muscle tumors, most commonly found in the uterus in premenopausal women (70-80%). Extra-uterine locations are very rare and more frequent in women.
View Article and Find Full Text PDFBrenner tumors are rare ovarian neoplasms that are typically small and unilateral. Most cases are benign; less than 5% of all Brenner tumors are borderline or proliferative. Brenner tumors originate from the follicular epithelium and consist of ovarian transitional cells surrounded by fibrous tissue.
View Article and Find Full Text PDFAnn Diagn Pathol
February 2025
Department of Anatomical Pathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA. Electronic address:
Radiol Case Rep
January 2025
Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Leiomyoma of the bladder is an unusual cause of benign smooth muscle tumor, only reported about 250 times in the literature. Imaging studies including computed tomography (CT) and magnetic resonance imaging (MRI) scans are useful in defining the extent and location of the tumor, however, immunohistology samples must be obtained to rule out similar appearing cancerous masses. In this article, we report the case of a 50-year-old male diagnosed with leiomyoma of the bladder that initially presented as dysuria and raised suspicion of a bladder transitional cell carcinoma (TCC).
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