Urachal Carcinoma: CT Findings

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

doi:10.1016/s0022-5347(17)41113-x

Cited by 4 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Urachal carcinoma is a rare neoplasm arising from the urachal remnant, which persists as a midline-situated musculofibrous tubular structure extending from the dome of the bladder to the umbilicus in the extraperitoneal prevesical space of Retzius between the transversalis fascia and the peritoneum. Although the normal urachal lumen is lined with transitional epithelium, the majority of urachal carcinomas (85%-90%) are adenocarcinoma, which is possibly caused by malignant transformation of columnar epithelial metaplasia (2,5). Approximately 70% of urachal adenocarcinomas are mucin-producing and calcifications are common findings (2,5).…”

Section: Discussionmentioning

confidence: 99%

Imaging findings of urachal mucinous cystadenocarcinoma associated with pseudomyxoma peritonei

et al. 2004

View full text Add to dashboard Cite

Pseudomyxoma peritonei is an uncommon neoplastic condition in which gelatinous fluid-like materials are observed in the peritoneal cavity caused by the dissemination of mucinous adenocarcinoma. Although ruptured appendiceal mucocele is the most common cause, tumors arising from other organs may also cause pseudomyxoma peritonei. We report the imaging findings of an extremely rare case of urachal mucinous adenocarcinoma associated with pseudomyxoma peritonei on computed tomography and magnetic resonance imaging with histopathologic correlation.

show abstract

Section: Discussionmentioning

confidence: 99%

Imaging findings of urachal mucinous cystadenocarcinoma associated with pseudomyxoma peritonei

et al. 2004

View full text Add to dashboard Cite

show abstract

“…At CT, urachal carcinoma may be solid, cystic, or a combination of the two. Low-attenuation components are seen in 60% of cases, reflecting the mucin content (Figs 9, 10) (8). As with other tumors in the walls of cysts in other locations, it may be impossible to distinguish a true cystic urachal carcinoma from a carcinoma arising in the wall of a urachal cyst (41).…”

Section: Tumorsmentioning

confidence: 99%

“…The minority of urachal carcinomas are located in the middle of the urachus (6% of cases) or near the umbilical end (4%) (35). Some tumors deviate toward the right or left paramedian portion from the midline (Fig 10); this is because, during embryologic development, the urachus occasionally deviates from the midline to merge with one of the obliterated umbilical arteries (8,9). The direction of tumor growth or local invasion influences the deviation from the midline in such cases.…”

Section: Tumorsmentioning

confidence: 99%

“…CT may demonstrate both intra-and extravesical components and the effect of the tumor on surrounding structures (Figs 11,12). A discrete perilesional spiculation or fat stranding is suggestive of, but not specific for, tumor infiltration because many cases of infection have demonstrated perilesional inflammatory spread overlapping peritumoral stranding at CT. CT is not accurate in identifying microscopic invasion of fat and bladder mucosa (8). Metastases occur initially in the pelvic lymph nodes, followed by systemic metastases to the lung, brain, liver, and bone (39).…”

Section: Tumorsmentioning

confidence: 99%

See 1 more Smart Citation

Urachal Remnant Diseases: Spectrum of CT and US Findings

Yu¹,

Kim²,

Lee³

et al. 2001

RadioGraphics

302

297

View full text Add to dashboard Cite

Computed tomography (CT) and ultrasonography (US) are ideally suited for demonstrating urachal remnant diseases. A patent urachus is demonstrated at longitudinal US and occasionally at CT as a tubular connection between the anterosuperior aspect of the bladder and the umbilicus. An umbilical-urachal sinus manifests at US as a thickened tubular structure along the midline below the umbilicus. A vesicourachal diverticulum is usually discovered incidentally at axial CT, appearing as a midline cystic lesion just above the anterosuperior aspect of the bladder. At US, it manifests as an extraluminally protruding, fluid-filled sac that does not communicate with the umbilicus. Urachal cysts manifest at both modalities as a noncommunicating, fluid-filled cavity in the midline lower abdominal wall located just beneath the umbilicus or above the bladder. Both infected urachal cysts and urachal carcinomas commonly display increased echogenicity at US and thick-walled cystic or mixed attenuation at CT, making it difficult to differentiate between them. Percutaneous needle biopsy or fluid aspiration is usually needed for diagnosis and therapeutic planning. Nevertheless, CT and US can help identify most disease entities originating from the urachal remnant in the anterior abdominal wall. Understanding the anatomy and the imaging features of urachal remnant diseases is essential for correct diagnosis and proper management.

show abstract

“…This tumor is typically silent because of its extraperitoneal location; consequently, most patients exhibit local invasion or metastatic disease at presentation 2 • 4 . Metastases first occur in the pelvic lymph nodes, followed by systemic spread to the lung, omentum, liver, brain and bone. Computed tomography (CT) and ultrasonography (US) are the imaging modalities of choice for demonstrating urachal remnant disease, Like other mucinous adenocarcinomas of the abdominal organs, urachal carcinoma may produce typical psammomatous calcifications that can be easily identified on CT scan 5 • 6 . Calcifications in a midline supravesical mass are considered nearly diagnostic for urachal carcinoma 7 . We report a case of metastatic adenocarcinoma of the urachus in a 26-year-old patient.…”

Section: Introductionmentioning

confidence: 99%

Unusual CT Findings in Urachus Carcinoma with an Extensive and Atypical Pattern of Metastasis. A Case Report

Fianza

Scalamogna

Gorone

et al. 2005

Tumori

View full text Add to dashboard Cite

Carcinoma of the urachus is very rare. Usually it has a typical appearance on computed tomography, with calcifications in a midline supravesical mass, but advanced stages of this neoplasm require malignancy evaluation that is not easy to establish. We report a case of a urachal tumor where CT scan did not properly assess the response to chemotherapy, while it did show an uncommon metastatic localization in the laterocervical soft tissues.

show abstract

Urachal Carcinoma: CT Findings

Cited by 4 publications

References 0 publications

Imaging findings of urachal mucinous cystadenocarcinoma associated with pseudomyxoma peritonei

Imaging findings of urachal mucinous cystadenocarcinoma associated with pseudomyxoma peritonei

Urachal Remnant Diseases: Spectrum of CT and US Findings

Unusual CT Findings in Urachus Carcinoma with an Extensive and Atypical Pattern of Metastasis. A Case Report

Contact Info

Product

Resources

About