Urachal carcinoma: CT findings.

Brick, S H; Friedman, Arnold C.; Pollack, Howard; Fishman, Elliot K.; Radecki, Paul D.; Siegelbaum, Marc H.; Mitchell, D G; Lev-Toaff, Anna S.; Caroline, Dina F.

doi:10.1148/radiology.169.2.2845472

Cited by 57 publications

(42 citation statements)

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“…It is an extraperitoneal midline structure running within the space of Retzius, between the transversalis fascia and the parietal peritoneum [1]. It can be quite variable in length (2-15 cm) and appearance (a well-defined ligament vs. a fine, fibrous plexus) [2]. Up to 30% of adults have been shown to have a microscopic lumen at autopsy; however, functionally, the urachus is closed by the third trimester of fetal life [10].…”

Section: Discussionmentioning

confidence: 99%

“…These 25 cases were received between 1981 and 2001. The CT images were evaluated to determine ] tumor morphology (cyst vs. solid) [1], presence [2] and localization [3] of calcification, extent of bladder invasion [4] and metastases [5]. The pathology and surgical reports were reviewed for all patients.…”

Section: Methodsmentioning

confidence: 99%

“…Urachal carcinoma is a rare malignant neoplasm comprising only 0.01% of all adult cancers [1]. They are even rare among bladder tumors, accounting for only 0.34% of all bladder neoplasms; however, up to 39% of bladder adenocarcinomas are of urachal origin [2,3]. Most adenocarcinomas of the urachus are mucinous.…”

Section: Introductionmentioning

confidence: 99%

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Computed tomographic appearance of urachal adenocarcinomas: review of 25 cases

2004

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Twenty-five cases of surgically proven urachal carcinomas were retrospectively reviewed. The radiological archives at the Armed Forces Institute of Pathology were searched for cases of surgically proven urachal carcinomas that had a computed tomographic (CT) scan as a part of their radiologic evaluation. CT images from all cases were evaluated to determine tumor morphology, presence and localization of calcification, extent of bladder invasion and metastases. Tumor size at presentation averaged 6 cm. Twentyone of 25 (84%) were mixed cystic solid lesions and 4/25 (16%) were completely solid. Calcifications were present in 18/25 (72%), with 11 peripherally located, 3 central only and 4 both. Bladder wall invasion was present in 23/25 (92%), but was seen as an intraluminal mass in only 13/25 (52%). The bulk of the mass was extravesicular in 22/25 (88%). Metastases were present in 12/25 (48%). Our series supports observations from other smaller series that a midline, calcified, supravesicular mass is highly suspicious, if not pathognomonic, for urachal carcinoma.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Computed tomographic appearance of urachal adenocarcinomas: review of 25 cases

2004

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“…Fifty to seventy percent have calcifications [2,5]. They invariably lie exactly midline or slightly off midline.…”

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“…Densities vary between solid, cystic, and mixed. Urachal neoplasms usually occur between the ages of 40 and 70, and hematuna is the most common symptom, followed by a palpable suprapubic mass, abdominal pain, dysuria, and umbilical discharge [5]. Treatment is usually an en-bloc partial or total cystectomy with pelvic lymphadenectomy and umbilectomy [6].…”

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Uterine perforation simulating urachal carcinoma: CT diagnosis.

Kronthal¹,

Fishman²,

Sanders³

et al. 1990

American Journal of Roentgenology

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Urachal remnants: Sonographic assessment

Robert

Hennequin‐Delerue

Chaillet

et al. 1996

J. Clin. Ultrasound

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Objective To evaluate the frequency of the visualization of urachal remnants (UR) with ultrasound and to determine their sonographic patterns. Subjects and methods: Two hundred and fifty consecutive patients were referred for abdominal and/or pelvic ultrasonography, 83 who had urinary tract symptoms. Patient age ranged from 1 month to 91 years (mean = 35 years). Patients were classified into four groups: (1) <16 years (n = 47) (2) 16–35 years (n = 100), (3) 36–55 years (n = 49), (4) ≥56 years (n = 54). Ultrasonography was performed using 3.75 MHz and 7.5 MHz transducers. Ultrasound criterion for diagnosis was a midline mass located between the rectus abdominus muscle and the upper part of the anterior bladder wall. Results UR were found in 90 cases (36%). UR demonstration was more frequent in groups 1 (61.7%) and 2 (49%) and 3 (20.4%) and 4 (3.7%). UR were nodular (87%) or tubular in structure (13%). Echogenicity was similar to or greater than adjacent muscle in 51% and less than in 49%. The length, width, and thickness mean and standard deviation values were 13.5 ± 4.7 mm, 12.6 ± 5 mm, and 5.2 ± 1.5 mm, respectively. UR were observed in 50% of the asymptomatic patients of groups 1 and 2. Conclusion Urachal remnants are commonly demonstrated with ultrasound, particularly in young patients. They should be considered to be a normal variant unless there is an increase in size or they are accompanied by clinical signs, without other possible causes for symptoms. © 1996 John Wiley & Sons, Inc.

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Urachal carcinoma: CT findings.

Cited by 57 publications

References 0 publications

Computed tomographic appearance of urachal adenocarcinomas: review of 25 cases

Computed tomographic appearance of urachal adenocarcinomas: review of 25 cases

Uterine perforation simulating urachal carcinoma: CT diagnosis.

Urachal remnants: Sonographic assessment

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