Plasmacytoid urothelial carcinoma of the bladder: MRI features and their association with survival

Woo, Sungmin; Ghafoor, Soleen; Das, Jeeban Paul; Gangai, Natalie; Goh, Alvin C.; Vargas, Herbert Alberto

doi:10.1016/j.urolonc.2021.09.017

Cited by 10 publications

(3 citation statements)

References 33 publications

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“…However, they differ from exophytic UC in terms of location and growth mode. [12][13][14] Although the tumor in this patient was large and invasive, it did not invade any tissue or organ, and no tumor was found, even in the fat around the bladder. We believe that this was related to the existence of structures similar to false envelopes around the tumor; however, as no relevant studies have previously been reported, the specific cause is unknown.…”

Section: Discussionmentioning

confidence: 71%

Primary exophytic urothelial carcinoma of the bladder: A case report

Li,

Liu,

et al. 2024

Medicine

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Rationale: Bladder urothelial carcinoma (UC) is a common urinary system tumor that is generally diagnosed by cystoscopy combined with pathological biopsy. However, complete exophytic UC of the bladder is very rare and difficult to diagnose. Early diagnosis and accurate identification of such tumors, followed by aggressive surgical treatment, is essential for the management of these patients. Patient concerns: An 84-year-old man was admitted to the hospital with dysuria, a poor diet, and significant weight loss. Diagnosis: Pelvic computed tomography and magnetic resonance imaging revealed an exteriophytic round mass on the right lateral wall of the bladder. Cystoscopy revealed a necrotic mass on the right lateral wall of the bladder cavity, and no tumor cells were found following the biopsy. The tumor was removed via partial cystectomy, and the pathological result indicated high-grade muscle-invasive UC. Interventions: The patient refused radical cystectomy and underwent laparoscopic partial cystectomy plus pelvic lymph node dissection followed by cisplatin plus gemcitabine chemotherapy. Outcomes: The patient’s mental state and appetite were significantly improved after the urinary tube was removed 1 week after surgery. His general state was significantly improved after 1 month of follow-up but died of acute cerebral infarction 3 months after surgery. Lessons: UC of the bladder may grow completely out of the bladder without symptoms such as gross hematuria; thus, early diagnosis is difficult. For high-risk individuals, regular imaging tests may help to detect tumors early. Partial cystectomy is a reliable surgical modality for bladder preservation in such patients.

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Section: Discussionmentioning

confidence: 71%

Primary exophytic urothelial carcinoma of the bladder: A case report

Li,

Liu,

et al. 2024

Medicine

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“…In gadolinium diethylenetriamine pentaacetic acid (Gd-DTPA) enhancement scan, the solid part is enhanced, and the area of T2WI hyperintensity will demonstrate enhancement of glandular tissue which can be differentiated from fluid or necrosis ( 1 ). In recent years, MRI has become one of the most used modalities in bladder cancer evaluation ( 22 ). Most of the literature, though, on the MR imaging of UrC are case reports and reviews.…”

Section: Discussionmentioning

confidence: 99%

Primary urachal leiomyosarcoma: a case report and literature review of clinical, pathological, and medical imaging features

Yan,

Li,

Yan

et al. 2023

Front. Oncol.

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BackgroundUrachal tumors are exceedingly rare, and adenocarcinoma is the most common malignant urachal neoplasm. Here, an especially rare patient of primary urachal leiomyosarcoma from our hospital was reported, and only five patients have been reported thus far since 1981.Case descriptionA 24-year-old man was admitted due to urinary tract symptoms. Both urogenital ultrasonography and contrast-enhanced computed tomography showed a mass at the dome of the urinary bladder. Laparoscopic surgical resection was performed, and histopathologic examination of the mass confirmed the diagnosis of urachal leiomyosarcoma. No recurrence was noted after one and a half years.ConclusionsBecause the leiomyosarcoma located in the extraperitoneal space of Retzius and may manifest with nonspecific abdominal or urinary symptoms, early and definitive preoperative diagnosis is challenging. Partial cystectomy with complete excision of the urachus is recommended. Because only a few patients have been recorded, clinical outcomes and recurrence risks are difficult to assess.

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“… [13] described imaging findings of PUC on MRI and found the presence of diffuse wall thickening. However, their study does not describe diffuse wall thickening with 2 layers of different signal intensities as observed in this case [13] . Thus, this characteristic mpMRI feature has not been reported so far.…”

Section: Discussionmentioning

confidence: 99%