Phyllodes tumour of the urinary bladder: a report of a unique case

The urachus is a vestigial remnant of the allantois, which is normally obliterated during fetal life to become the median umbilical ligament, which runs between the urinary bladder and umbilicus in adults. Failure of obliteration leaves a tubular urachal remnant, which may present with disease. We report a unique case of a urachal remnant causing umbilical pain and in-drawing on micturition in a nine-year-old boy. There was no urine discharge from the umbilicus and in-drawing did not occur on defecation. His urinary stream was normal. High frequency ultrasonography revealed a thick band with a narrow, anechoic, fluid filled central channel. Exploration via an infraumbilical curvilinear incision identified a thick urachal band that could be traced to the dome of the bladder. This was excised flush with the bladder. The patient remains well at nine months following surgery with complete cessation of symptoms.

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A unique case of urinary bladder simple melanosis: a case report and review of the literature

Diagnostic Pathology ◽

10.1186/1746-1596-4-24 ◽

2009 ◽

Vol 4 (1) ◽

pp. 24 ◽

Cited By ~ 15

Author(s):

Bo Jin ◽

Syed Y Zaidi ◽

Melvin Hollowell ◽

Christopher Hollowell ◽

Husain Saleh

Keyword(s):

Case Report ◽

Urinary Bladder ◽

Review Of The Literature ◽

Unique Case

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A unique case of mesonephric adenocarcinoma of urinary bladder

Human Pathology Case Reports ◽

10.1016/j.ehpc.2021.200519 ◽

2021 ◽

Vol 24 ◽

pp. 200519

Author(s):

Aswathy Miriam Cheriyan ◽

Shweta Patel ◽

Thomas Krivak ◽

Jay Lutins ◽

Zachary Horne ◽

...

Keyword(s):

Urinary Bladder ◽

Unique Case ◽

Mesonephric Adenocarcinoma

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Primary MiNEN of the urinary bladder: an hitherto undescribed entity composed of large cell neuroendocrine carcinoma and adenocarcinoma with a distinct clinical behavior

Virchows Archiv ◽

10.1007/s00428-021-03023-7 ◽

2021 ◽

Author(s):

Giacomo Maria Pini ◽

Silvia Uccella ◽

Matteo Corinti ◽

Maurizio Colecchia ◽

Giuseppe Pelosi ◽

...

Keyword(s):

Urinary Bladder ◽

Urothelial Carcinoma ◽

Neuroendocrine Carcinoma ◽

Metastatic Disease ◽

Large Cell ◽

Small Cell ◽

Neuroendocrine Neoplasms ◽

Unique Case ◽

Clinical Behavior ◽

Neuroendocrine Carcinomas

AbstractNeuroendocrine carcinomas (NECs) of the urinary bladder are very rare and can be observed in the context of mixed neuroendocrine/non-neuroendocrine neoplasms (MiNENs), most frequently in association with urothelial carcinoma. Small cell NECs are far more common than large cell NECs (LCNECs), which are exceedingly rare. We describe a primary MiNEN of the urinary bladder, composed of a LCNEC and of an adenocarcinoma, in which the neuroendocrine component reached complete pathological regression after neoadjuvant M-VAC chemotherapy, whereas the non-neuroendocrine component of the tumor progressed to metastatic disease. Compared to mixed neuroendocrine/non-neuroendocrine neoplasms described in the literature until now, this appears to be a unique case that expands the spectrum of neuroendocrine neoplasia of the urinary bladder.

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Glandular-type inverted papilloma of urinary bladder – Report of a unique case with immunohistochemistry

Indian Journal of Pathology and Microbiology ◽

10.4103/ijpm.ijpm_456_18 ◽

2020 ◽

Vol 63 (1) ◽

pp. 96

Author(s):

Kirti Gupta ◽

Archana Sundaram ◽

Sonal Singla ◽

ShrawanK Singh

Keyword(s):

Urinary Bladder ◽

Inverted Papilloma ◽

Unique Case

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Leiomyoma in the space of Retzius: a rare location

International Journal of Reproduction Contraception Obstetrics and Gynecology ◽

10.18203/2320-1770.ijrcog20202371 ◽

2020 ◽

Vol 9 (6) ◽

pp. 2656

Author(s):

Shweta . ◽

Shaheen Anjum ◽

Zehra Mohsin ◽

Afzal Anees

Keyword(s):

Urinary Bladder ◽

Clinical Examination ◽

Pubic Symphysis ◽

Uterine Wall ◽

Unique Case ◽

Anatomical Compartment ◽

Rare Location ◽

Open Laparotomy ◽

Clinical Conditions ◽

Study Hospital

Extrauterine locations of leiomyomas are extremely rare clinical conditions as in the case of space of Retzius. Space of Retzius is a small anatomical compartment located posterior to the pubic symphysis and anterior to the urinary bladder. Here authors report a very unique case of 22-year-old woman presented to the study hospital with complaints of inability to conceive and difficulty in urination. Clinical examination and imaging of pelvis suggest leiomyoma of uterus located between lower part of anterior uterine wall and bladder. An attempt to remove the tumour laparoscopically was taken but later it was converted into open laparotomy due to unusual location of leiomyoma. Histopathology revealed the tumour to be a leiomyoma.

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Effect of verapamil on cytoplasmic distribution of granules and microfilaments in amphibian urinary bladder

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100103681 ◽

1988 ◽

Vol 46 ◽

pp. 324-325

Author(s):

A.J. Mia ◽

L.X. Oakford ◽

T. Yorio

Keyword(s):

Urinary Bladder ◽

Water Flow ◽

Morphological Changes ◽

Granular Cell ◽

Cytosolic Calcium ◽

Calcium Storage ◽

Amphibian Urinary Bladder ◽

Vesicular Membrane ◽

High Concentrations ◽

Cytoskeletal System

The amphibian urinary bladder has been used as a ‘model’ system for studies of the mechanism of action of antidiuretic hormone (ADH) in stimulating transepithelial water flow. The increase in water permeability is accompanied by morphological changes that include the stimulation of apical microvilli, mobilization of microtubules and microfilaments and vesicular membrane fusion events . It has been shown that alterations in the cytosolic calcium concentrations can inhibit ADH transmembrane water flow and induce alterations in the epithelial cell cytomorphology, including the cytoskeletal system . Recently, the subapical granules of the granular cell in the amphibian urinary bladder have been shown to contain high concentrations of calcium, and it was suggested that these cytoplasmic constituents may act as calcium storage sites for intracellular calcium homeostasis. The present study utilizes the calcium antagonist, verapamil, to examine the effect of calcium deprivation on the cytomorphological features of epithelial cells from amphibian urinary bladder, with particular emphasis on subapical granule and microfilament distribution.

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Role of PKC isozymes in water transport in toad urinary bladder

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100085812 ◽

1991 ◽

Vol 49 ◽

pp. 302-303

Author(s):

A.J. Mia ◽

L.X. Oakford ◽

T. Yorio

Keyword(s):

Urinary Bladder ◽

Apical Membrane ◽

Membrane Surface ◽

Protein A ◽

Cell Types ◽

Leukemic Cells ◽

Toad Urinary Bladder ◽

Pkc Isozymes ◽

Antibody Labeling

Protein kinase C (PKC) isozymes, when activated, are translocated to particulate membrane fractions for transport to the apical membrane surface in a variety of cell types. Evidence of PKC translocation was demonstrated in human megakaryoblastic leukemic cells, and in cardiac myocytes and fibroblasts, using FTTC immunofluorescent antibody labeling techniques. Recently, we reported immunogold localizations of PKC subtypes I and II in toad urinary bladder epithelia, following 60 min stimulation with Mezerein (MZ), a PKC activator, or antidiuretic hormone (ADH). Localization of isozyme subtypes I and n was carried out in separate grids using specific monoclonal antibodies with subsequent labeling with 20nm protein A-gold probes. Each PKC subtype was found to be distributed singularly and in discrete isolated patches in the cytosol as well as in the apical membrane domains. To determine if the PKC isozymes co-localized within the cell, a double immunogold labeling technique using single grids was utilized.

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