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Related Concept Videos

Ureters01:22

Ureters

The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
Cellular Adaptation IV: Dysplasia and Metaplasia01:24

Cellular Adaptation IV: Dysplasia and Metaplasia

DysplasiaDysplasia refers to abnormal changes in the size, shape, and organization of mature cells, characterized by pleomorphism, nuclear abnormalities, and increased mitotic activity. It commonly affects epithelial tissues, including the cervix, gastrointestinal tract, respiratory mucosa, and endometrium. Although it may occur alongside hyperplasia, dysplasia is not a true adaptive response but a preneoplastic change with potential to progress to cancer.When confined above the basement...
Appendicitis01:19

Appendicitis

Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...
Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...

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Related Experiment Video

Updated: Jul 7, 2026

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma
06:39

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

Published on: November 22, 2019

[Urachal adenocarcinoma].

Morten Jønler1, Lars Lund

  • 1Organkirurgisk Afdeling, Urologisk Afsnit, Sygehus Viborg, DK-8800 Viborg. jonler@dadlnet.dk.

Ugeskrift for Laeger
|February 20, 2008
PubMed
Summary

This study details a rare mucin-producing adenocarcinoma found in an urachal lesion. Treatment options like cystectomy and umbilectomy are discussed, alongside their outcomes.

Area of Science:

  • Urology
  • Oncology
  • Pathology

Background:

  • Urachal adenocarcinoma is a rare malignancy arising from remnants of the allantois.
  • Adenocarcinomas can present with various histological subtypes, including mucinous adenocarcinoma.
  • Understanding the epidemiology and histopathology of urachal remnants is crucial for early diagnosis.

Observation:

  • A specific case of mucin-producing adenocarcinoma within a urachal lesion is presented.
  • The rarity of this specific histological subtype necessitates detailed case reporting.
  • Diagnostic challenges and imaging findings associated with urachal lesions are highlighted.

Findings:

  • Treatment strategies for urachal adenocarcinoma include surgical resection.
  • Surgical options range from en bloc total or partial cystectomy with urachal and umbilical excision to local resection with surveillance.

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Induction of Invasive Transitional Cell Bladder Carcinoma in Immune Intact Human MUC1 Transgenic Mice: A Model for Immunotherapy Development

Published on: October 30, 2013

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Last Updated: Jul 7, 2026

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma
06:39

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

Published on: November 22, 2019

Induction of Invasive Transitional Cell Bladder Carcinoma in Immune Intact Human MUC1 Transgenic Mice: A Model for Immunotherapy Development
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Induction of Invasive Transitional Cell Bladder Carcinoma in Immune Intact Human MUC1 Transgenic Mice: A Model for Immunotherapy Development

Published on: October 30, 2013

  • The choice of treatment depends on the stage and characteristics of the tumor.

    • Implications:

    • Effective management of urachal adenocarcinoma requires a multidisciplinary approach.
    • Surgical outcomes vary based on the chosen modality and patient-specific factors.
    • Further research into optimal treatment protocols for rare urachal malignancies is warranted.