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Histology Grade Assessment (Specimen: Notti)

Published: August 9, 2026Updated: August 16, 2026

This test involves examining tissue samples under a microscope to determine the grade of cancerous cells, often used in oncology to guide treatment planning.

Quick summary

["Microscopic evaluation of tissue helps doctors assess how aggressive cancer cells are."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
42801-1
Short code
Deprecated Histology grade Ca spec Notti
Synonyms
Deprecated Histology grade Ca spec Notti
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
nottingham-combined
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What Is Histology Grade Assessment?

Histology grade assessment evaluates the microscopic appearance of cancer cells in a tissue sample. It categorizes cells based on how abnormal they look compared to normal cells, which helps determine the cancer’s potential to grow and spread. This process is typically performed on biopsy or surgical specimens, often stained with dyes like hematoxylin and eosin (H&E) for better visualization.

How Is This Test Performed?

A small sample of tissue is taken during a biopsy or surgery and sent to a pathology lab. The sample is fixed, sliced into thin sections, and stained. A pathologist then examines the slides under a microscope to assess cellular characteristics such as shape, size, and organization. The grade is often reported as low-grade (less aggressive) or high-grade (more aggressive) cancer cells.

Why Is This Test Important?

The grade of cancer provides critical information for treatment decisions. Higher-grade cancers may require more aggressive therapies, while lower-grade cancers might be managed with less intense approaches. This test helps doctors tailor treatment plans to the specific needs of the patient.

What Does the Test Result Mean?

Results are typically reported as a grade (e.g., well-differentiated, moderately differentiated, poorly differentiated) rather than a numerical value. A pathologist will interpret the findings and communicate them to your healthcare provider, who will discuss implications for your care.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Histology Grade Assessment

Frequently asked questions

How often does this test cause discomfort or side effects?
The discomfort is usually related to the biopsy or surgery procedure, not the histology assessment itself. Most biopsies are minimally invasive and may cause mild soreness or bruising. The tissue sample is processed in a lab and does not involve patient discomfort during testing.
What if my biopsy sample is insufficient for grading?
If the biopsy sample is too small or lacks sufficient cancer cells, the pathologist may request additional samples or consult with a specialist to ensure accurate grading. This does not mean the test is invalid but may require further evaluation.
Can this test be done on urine or blood instead of tissue?
No, histology grade assessment specifically requires a tissue sample (e.g., biopsy) to examine cellular structure under a microscope. Blood or urine tests cannot provide this type of detailed evaluation.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy