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Urine Studies I: Urinalysis01:29

Urine Studies I: Urinalysis

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Urinalysis is a widely used diagnostic test that analyzes urine's physical, chemical, and microscopic characteristics. Healthcare providers use it to detect and monitor various health conditions, including renal disease, urinary tract infections (UTIs), diabetes, and metabolic or systemic disorders.Components of UrinalysisUrinalysis consists of three primary components: physical, chemical, and microscopic examination. Each provides unique insights into the urine sample and, by extension, the...
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Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

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Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
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Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
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Imaging Studies III: Computed Tomography01:27

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DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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Recurrent Escherichia coli Urinary Tract Infection Triggered by Gardnerella vaginalis Bladder Exposure in Mice
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Guar bean in urinary cytology: a morphologic pitfall.

Laila Nomani1, Schuharazad Abro1, Marcus L Quek2

  • 1Department of Pathology and Laboratory Medicine, Loyola University Healthcare System, Maywood, Illinois.

Journal of the American Society of Cytopathology
|November 1, 2020
PubMed
Summary
This summary is machine-generated.

Vegetable material, identified as guar gum, was found as a contaminant in ileal conduit urine specimens. Familiarity with its cytomorphology is crucial for accurate urine cytology diagnosis.

Keywords:
Contaminants in cytologyGuar gumIleal conduit cytologyOstomy devicesUrine cytologyVegetable matter in urine

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Area of Science:

  • Cytopathology
  • Urology
  • Materials Science

Background:

  • Cytologic specimens can contain various contaminants.
  • Ileal conduit urine cytology requires careful evaluation for artifacts and contaminants.

Purpose of the Study:

  • To describe the cytomorphology of an encountered vegetable material in ileal conduit urine.
  • To identify the source of origin of this vegetable material.

Main Methods:

  • Retrospective search of ileal conduit urine cytology specimens (January 2015-April 2020).
  • Analysis of ostomy procedures and devices used.
  • Histologic preparation of ostomy devices, guar beans, and seeds.

Main Results:

  • 17 urinary specimens from 8 patients showed vegetable contaminants.
  • All patients used Coloplast SenSura Mio ostomy devices.
  • Cytology revealed polygonal, thick-walled cells with a dark core, matching cells from ostomy adhesive and guar seeds.

Conclusions:

  • The contaminant was identified as guar gum, a component of ostomy wafer adhesives.
  • Recognizing the cytomorphology of guar cells is essential to prevent diagnostic errors in ileal conduit urine cytology.