Secret Blood Testing (Sample Data: Here)

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Educational UI only. This is not medical advice and cannot diagnose conditions. For medical concerns, consult a qualified clinician. Image quality and zoom level matter: the Cell Types reference tab shows the recommended framing for centering and cropping a single target cell.

Cell Type Reference

Our model is trained to recognize the 16 cell types shown below. Best results come from images captured with clinical-grade microscopy and consistent smear prep, focus, and lighting similar to the training data. See above for sample data.

Basophil

Rare granulocyte involved in histamine signaling; typically low in normal blood.

Specific clue: can rise with allergic states; basophilia can also appear in myeloproliferative disorders.

Eosinophil

Granulocyte active in allergy/asthma pathways and some parasitic responses.

Often reactive: allergies/asthma/parasites; persistent marked elevation can require further evaluation.

Hairy Cell

Lymphoid cell with characteristic ‘hair-like’ projections; morphology can be distinctive.

High concern when confirmed: classically associated with hairy cell leukemia; diagnosis is clinical and lab-confirmed.

Lymphocyte

Includes T- and B-cells; commonly elevated with viral immune responses.

Often reactive: viral illness can raise counts; persistent high counts may require hematology workup depending on context.

Lymphocyte (Large Granular)

Often NK/T lineage with prominent granules; participates in cytotoxic defense.

Mixed: can appear with viral/reactive states; rarely linked to LGL-type disorders when persistent.

Lymphocyte (Neoplastic)

Atypical lymphocyte features can suggest a clonal process in the right clinical context.

High concern: may align with leukemia/lymphoma patterns; requires confirmatory clinical testing.

Metamyelocyte

Immature granulocyte with kidney-bean nucleus; part of the left-shift spectrum.

Inflammatory pattern: can rise in severe infection/stress; context and counts matter.

Monocyte

Large phagocyte that clears debris and helps coordinate immune response.

Reactive pattern: may rise in chronic infection/inflammation or recovery states; persistent monocytosis needs evaluation.

Myeloblast

Very immature myeloid cell. Seeing blasts in blood is a major abnormal finding.

High concern: can be associated with acute leukemia or marrow failure syndromes; needs clinical correlation.

Myelocyte

Often the earliest immature granulocyte seen in a benign left shift.

Mixed concern: may appear with severe infection/inflammation; persistent elevation can suggest marrow disorders.

Neutrophil Band

Slightly immature but functional neutrophil; common in acute bacterial responses.

Often reactive: frequently seen with bacterial infection or physiologic stress; low cancer specificity alone.

Neutrophil Segmented

Most common WBC. Primary defense against bacteria and acute inflammation.

Baseline finding: high counts often infection/steroids; low counts can occur with meds, autoimmune, or sepsis.

Plasma Cell

Rare in normal peripheral blood; usually lives in marrow or lymph nodes.

High concern: uncommon in blood. Often linked to plasma cell disorders; sometimes severe immune activation.

Promyelocyte

Very early granulocyte precursor. Presence in blood is highly unusual.

Critical concern: classically linked with APL risk patterns; urgent clinical follow-up is standard.

Promyelocyte (Atypical)

Abnormal promyelocyte morphology; may show dense granules and Auer rod bundles.

Very high concern: strongly associated with APL-type presentations in clinical settings.

Normoblast

An immature red blood cell that still contains a nucleus. Normally confined to bone marrow, not peripheral blood.

High concern in adults: may be seen with severe anemia, marrow stress, hypoxia, or marrow infiltration. Clinical context is essential.