Clinical and Imaging Evaluation
Examination and imaging identify the site and extent of concern and help guide selection of tissue for sampling.
Lymphoma Pathology Support
Understanding Your Lymphoma Pathology Reports
Get a clearer explanation of the lymphoma type or classification, tissue architecture, cell morphology, immunohistochemistry, flow-cytometry findings, proliferation index, EBV studies, FISH or molecular results, specimen limitations, and pending studies documented in your reports.
This educational consultation explains your existing written pathology reports. It does not provide a new diagnosis, written report, official document, treatment plan, or replacement for your treating clinicians.
Understand how the reports fit togetherAnd what may still depend on specimen size, imaging, blood or marrow studies, molecular testing, and other clinical information.
Board-Certified PathologistProfessional pathology-report guidance
Secure Virtual AppointmentMeet online from the comfort of home
Patient-Friendly ExplanationClear language for complex report findings
Educational SupportNot a replacement for medical advice
Understanding the Process
How a Lymphoma Diagnosis Is Established
A lymph node or mass may be identified by examination or imaging, but lymphoma classification usually depends on tissue morphology combined with immunophenotypic and sometimes genetic studies.
Core or Excisional Biopsy
A core needle obtains tissue cylinders, while an excisional biopsy removes a lymph node or larger tissue sample for architectural assessment.
Integrated Pathology Diagnosis
Morphology, immunohistochemistry, flow cytometry, and selected genetic studies are integrated to classify the lymphoid process.
Wider Clinical Assessment
Pathology, imaging, blood or marrow findings, symptoms, health history, and other clinical information are considered together.
Architecture can be important in lymphoma. Some classifications require evaluation of how cells are arranged across a lymph node or tissue. A limited core may be sufficient in some cases and limited in others.
Different Reports, Different Questions
Core-Needle Versus Excisional-Biopsy Pathology
Both procedures can provide diagnostic tissue, but an excision usually shows more architecture. The report should be read in light of the specimen type, tissue quality, and ancillary studies.
Limited Tissue Sample
Core-Needle-Biopsy Report
Several tissue cores may support diagnosis when morphology and ancillary studies are sufficient.
- Tissue-site and adequacy
- Cell morphology in sampled cores
- Immunohistochemistry
- Flow cytometry when viable tissue is submitted
- Limitations and recommendations stated in the report
Larger Tissue Sample
Excisional-Biopsy Report
A removed lymph node or larger specimen can show the relationship among cells and tissue compartments.
- Overall nodal or tissue architecture
- Distribution and morphology of abnormal cells
- Broader immunohistochemical assessment
- Flow, FISH, or molecular studies
- Classification and grade when applicable to the subtype
Inside the Report
What Your Lymphoma Pathology Reports May Tell You
Lymphoma workups may include a surgical-pathology report, immunohistochemistry addendum, flow-cytometry report, FISH or molecular report, and later blood or marrow studies.
Start with the exact lymphoma classification.
“Lymphoma” includes many B-cell, T-cell, NK-cell, and Hodgkin lymphoma entities. Grade, proliferation, and genetic findings do not have the same meaning across every subtype.
Integrated Diagnosis
The final diagnosis combines tissue morphology, architecture, immunophenotype, and defining studies according to current classification criteria.
Architecture and Morphology
The report describes the pattern of tissue involvement and the size, shape, and distribution of abnormal cells.
Immunohistochemistry
Antibody stains demonstrate proteins in tissue and help establish lineage, differentiation, and a specific diagnostic pattern.
Flow-Cytometry Findings
Flow cytometry can identify an abnormal B-, T-, or other lymphoid population, but adequacy and viability affect what it can detect.
Proliferation Index
A marker such as Ki-67 estimates the proportion of cells in the growth cycle in the tested area; its meaning depends on the lymphoma type.
EBV or Other Organism Studies
Selected cases may include EBER in situ hybridization or other targeted studies based on morphology and clinical context.
FISH and Molecular Findings
Genetic studies may assess rearrangements, copy-number changes, variants, or clonality relevant to selected lymphoma classifications.
Specimen Adequacy and Pending Studies
Crush artifact, necrosis, limited tissue, low viable-cell yield, or prior treatment can restrict interpretation. Addenda may complete the workup.
Need Help Understanding These Findings?
Review the lymphoma classification, morphology, immunostains, flow cytometry, proliferation index, genetic findings, limitations, and pending addenda during a secure virtual consultation.
ArchitectureHow the tissue pattern is organised
MorphologyWhat the abnormal cells look like
ImmunophenotypeProteins shown by IHC or flow
FISH / MolecularSelected rearrangements or variants
Clinical ContextSite, imaging, blood, marrow, and history
Understanding an Integrated Diagnosis
How the Main Evidence Layers Work Together
Lymphoma classification often requires agreement among tissue architecture, cell appearance, protein expression, and selected genetic findings, interpreted with the specimen and clinical context.
No Single Marker Defines Every Lymphoma
A diagnosis usually depends on a pattern of findings rather than one positive or negative stain.
Core and Excision May Differ in Detail
A larger specimen may reveal architecture or heterogeneity that was not represented in a limited core.
Grade Is Not the Same as Stage
When a lymphoma subtype uses grade, it describes pathologic features. Stage describes the distribution of disease and requires clinical evaluation.
Beyond the Diagnostic Line
Additional Findings That May Appear in a Lymphoma Workup
Ancillary and descriptive findings help explain how the classification was reached and what limitations or further studies remain.
Cell Lineage and Maturation
The combined marker pattern helps determine B-cell, T-cell, NK-cell, Hodgkin, or another lymphoid differentiation.
Grade or Large-Cell Transformation
Selected lymphoma types use grading or document transformation to a more aggressive-appearing component; the meaning is subtype-specific.
Proliferation and Apoptosis
Ki-67 and morphologic turnover may be reported, but neither is a stand-alone diagnosis or stage.
Necrosis, Crush, and Viability
Tissue damage or low viable-cell recovery can limit morphology, flow cytometry, culture, or genetic testing.
Bone Marrow and Clinical Stage
A later marrow specimen may assess involvement, but complete stage also uses imaging, examination, laboratory findings, and clinical criteria beyond the primary biopsy.
Additional Testing
Immunohistochemistry, Flow Cytometry, and Genetic Testing
The exact studies depend on the suspected lymphoma type, tissue available, and differential diagnosis. Not every case needs the same panel.
Immunohistochemistry
Tissue stains help assess lineage, maturation, architecture, and diagnostic protein-expression patterns.
IHCProtein pattern
Flow Cytometry
Fresh tissue, blood, marrow, or fluid may be tested for a multi-marker abnormal lymphoid population.
MarkersClonality pattern
FISH and Molecular Testing
Selected assays may identify rearrangements, variants, or clonality findings that refine classification.
FISHDNA / RNA
A negative flow or genetic result does not automatically exclude lymphoma. Interpretation depends on what was tested, tissue viability, sample representation, assay sensitivity, and morphology. A consultation explains documented findings without selecting therapy.
Questions About Immunostains, Flow, or FISH?
Get a patient-friendly explanation of studies already documented in your pathology reports and identify which results may still be pending or reported separately.
Putting the Results Together
What Is Confirmed, Pending, or Dependent on Other Information?
A lymphoma workup may develop through sequential reports. Separate the established classification from studies still pending and information needed for clinical staging.
Confirmed in the Report
Documented Pathology Findings
The integrated diagnosis, architecture, morphology, immunohistochemistry, flow findings, proliferation index, and completed genetic results may be documented.
May Still Be Pending
Addenda or Separate Results
Additional stains, FISH, molecular testing, outside consultation, marrow studies, or another biopsy may still be pending or separately reported.
Requires Wider Context
Clinical Stage and Care Planning
Imaging, examination, blood tests, symptoms, marrow findings, health history, and evaluation by the treating team provide wider context.
How HONEST Pathology Helps
A Clearer Explanation of the Reports You Already Have
A pathology report consultation helps you understand terminology and findings already documented, so you can approach conversations with your treating team with greater context and more focused questions.
Upload Your Reports and Records
Submit the pathology reports and relevant records requested for the consultation.
Meet Online With a Pathologist
Discuss the reports during a private virtual appointment and ask questions about the documented findings.
Receive a Plain-Language Explanation
Better understand the terminology and prepare questions to discuss with your treating care team.
Consultation Scope
What the Consultation Includes and Excludes
A report explanation and a formal microscopic second opinion are different services. Clear boundaries help you choose the appropriate option.
The Consultation May Explain
- The documented lymphoma diagnosis and classification terminology
- Differences between core and excisional biopsy reports
- Architecture, morphology, and specimen limitations
- Immunohistochemistry and flow-cytometry findings
- Proliferation index, EBV studies, and subtype-specific grade
- FISH, molecular studies, and pending addenda
- Questions to discuss with your treating team
The Consultation Does Not Include
- A new pathology diagnosis or replacement interpretation
- A new written report or official document
- Clinical staging or prognosis from pathology alone
- Treatment prescribing or replacement of the hematology-oncology team
- Physical examination, imaging review, or blood-test interpretation in isolation
- Microscopic slide review unless a separate pathology second-opinion service is ordered
Choosing the Right Service
Report Consultation or Formal Pathology Second Opinion?
The right option depends on whether you need help understanding written results or an independent review of pathology slides, tissue, or digital images.
Frequently Asked Questions
Questions About Lymphoma Pathology Reports
These answers provide general educational information. Individual reports vary according to specimen, procedure, tumor type, prior treatment, additional testing, and wider clinical situation.
What is the difference between Hodgkin and non-Hodgkin lymphoma?
They are broad categories containing distinct entities defined by morphology, immunophenotype, and other findings. The exact pathology diagnosis is more informative than the broad label alone.
Why might an excisional biopsy be requested after a core biopsy?
A larger specimen can show tissue architecture and heterogeneity that may not be represented in limited cores. Whether it is needed depends on the initial findings and clinical situation.
Is lymphoma grade the same as stage?
No. Grade, when used for a particular subtype, describes pathologic features. Stage describes where disease is present and requires clinical information.
What is immunohistochemistry?
It uses antibodies on tissue sections to show protein-expression patterns that help establish lineage and classification.
What does flow cytometry show?
It evaluates marker patterns on individual cells and may identify an abnormal clonal lymphoid population. Tissue viability and sampling affect the result.
What does Ki-67 mean?
Ki-67 estimates the percentage of cells in the growth cycle in the tested area. Its significance varies by lymphoma type and should not be interpreted alone.
Why are FISH or molecular tests added?
Selected genetic findings can distinguish among entities or refine classification. The test choice depends on morphology, immunophenotype, and the diagnostic question.
When is a formal pathology second opinion more appropriate?
A formal second opinion may be appropriate when findings are complex, uncertain, unexpected, or when independent examination of the original slides, tissue, or digital images could provide additional value.
Clearer Answers Begin Here
Understand the Findings Across Your Lymphoma Reports
Meet online with a pathologist who can explain the classification, tissue findings, immunostains, flow cytometry, proliferation index, genetic results, specimen limitations, pending addenda, and questions raised by your existing reports.
Educational support only. This service does not replace your treating physician, hematologist-oncologist, surgeon, radiologist, genetic counselor, or medical care team.
