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Diagnosis and interpretation
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Patient: MS. HEMANGI ARVINDBHAI DESAI | 17 Yrs / Female | PICU-3/4th Floor B Wing | IP No. 26/2966
Date: 30 July 2026 | Nirmal Pathology & Microbiology Laboratory, Surat
Complete Lab Data Summary
1. Complete Blood Count (CBC)
| Test | Result | Unit | Reference Range | Interpretation |
|---|---|---|---|---|
| Haemoglobin (Hb) | 6.0 L | gm/dL | 11.5-15.0 | Severely LOW |
| WBC Count | 2020 L | /cmm | 4000-10500 | Severely LOW |
| Platelet Count | 16000 L | Lakhs/cmm | 1,50,000-4,00,000 | Critically LOW |
| RBC Count | 2.2 L | mil/cmm | 4.5-4.6 | Severely LOW |
| PCV (Hematocrit) | 18.0 L | % | 33.0-36.0 | Severely LOW |
| MCV | 83.0 | fL | 78.0-90.0 | Normal |
| MCH | 28.0 | pg | 26.0-31.0 | Normal |
| MCHC | 33.0 | gm/dL | 32.0-36.0 | Normal |
| RDW | 16.0 H | CV% | 11.0-14.0 | High (anisocytosis) |
| MPV | 11.0 H | fL | 7.0-10.0 | Elevated |
| Neutrophils | 19 L | % | 40-70 | Severely LOW |
| Lymphocytes | 79 H | % | 28.0-48.0 | HIGH |
| Eosinophils | 01 | % | 1.0-6.0 | Normal |
| Monocytes | 01 L | % | 2.0-7.0 | LOW |
| ANC | 383.8 L | /cmm | 2200-5500 | Critically LOW (severe neutropenia) |
| ALC | 1595.8 | /cmm | 1250-7000 | Normal |
| Peripheral Smear | Normochromic Normocytic | - | - | Nil anisocytosis, nil hypochromia |
| Platelets on smear | REDUCED | - | - | Confirmed thrombocytopenia |
| Parasites | Not seen | - | - | Malaria excluded on smear |
2. Reticulocyte Count
| Test | Result | Unit | Reference Range | Interpretation |
|---|---|---|---|---|
| Reticulocyte count | 1.0 | % | 0.2-2.2 | Normal / Low-normal |
3. Bilirubin
| Test | Result | Unit | Reference Range | Interpretation |
|---|---|---|---|---|
| Total Bilirubin | 2.2 H | mg% | 0.8-1.3 | Elevated |
| Direct Bilirubin | 0.9 H | mg% | 0.2-0.5 | Elevated |
| Indirect Bilirubin | 1.3 H | mg% | 0.2-0.8 | Elevated |
4. Renal Function / Phosphorus / LFT
| Test | Result | Unit | Reference Range | Interpretation |
|---|---|---|---|---|
| Creatinine | 0.4 L | mg/dL | 0.5-1.2 | Borderline low |
| Phosphorus | 2.8 | mg/dL | 2.7-4.5 | Normal |
| SGPT/ALT | 50 H | U/L | 5-30 | Elevated |
5. Electrolytes
| Test | Result | Unit | Reference Range | Interpretation |
|---|---|---|---|---|
| Sodium | 135 | mmol/L | 136-145 | Borderline LOW |
| Potassium | 3.20 L | mmol/L | 3.50-5.10 | LOW (hypokalemia) |
| Chloride | 97 | mmol/L | 95-107 | Normal |
| Ionised Calcium | 1.1 | mmol/L | 1.0-1.3 | Normal |
6. Uric Acid & LDH
| Test | Result | Unit | Reference Range | Interpretation |
|---|---|---|---|---|
| Uric Acid | 1.2 L | mg% | 2.4-6.0 | LOW |
| LDH | 2271 H | U/L | 105-300 | Markedly ELEVATED |
7. Vitamin B12
| Test | Result | Unit | Reference Range | Interpretation |
|---|---|---|---|---|
| Vitamin B12 (Cyanocobalamin) | >2000 | pg/mL | 211-970 | Markedly ELEVATED |
8. Homocysteine
| Test | Result | Unit | Reference Range | Interpretation |
|---|---|---|---|---|
| Homocysteine (S) | 24 H | µmol/L | 5.0-15.0 | Elevated (hyperhomocysteinemia) |
9. Coagulation & Blood Group
| Test | Result | Unit | Reference Range | Interpretation |
|---|---|---|---|---|
| Blood Group & Rh | O Positive | - | - | - |
| PT (Prothrombin Time) - Test | 13 | Sec. | 13-15 | Normal |
| PT - Control | 18 H | Sec. | - | |
| PT INR | 1.38 | - | Standard: 2-3 | Mildly elevated INR |
| PTTK (aPTT) - Test | 33 | Sec. | - | Normal |
| PTTK - Control | 40 H | Sec. | 29.0-39.0 | Slightly HIGH |
10. G6PD
| Test | Result | Unit | Reference Range | Interpretation |
|---|---|---|---|---|
| G6PD | 19 | U/gHb | 6.5-50 | NORMAL (G6PD deficiency excluded) |
Diagnostic Interpretation
Key Abnormalities at a Glance:
- Pancytopenia - All three cell lines severely depressed (Hb 6.0, WBC 2020, Platelets 16,000)
- Severe neutropenia (ANC 383) with relative lymphocytosis
- Markedly elevated LDH (2271 vs. normal 105-300) - ~7.5x upper limit
- Markedly elevated Vitamin B12 (>2000 pg/mL) - paradoxically very high
- Elevated homocysteine (24 µmol/L)
- Elevated bilirubin (both direct and indirect) with elevated SGPT
- Low uric acid (1.2 mg%)
- Reticulocyte count inappropriately normal/low (1.0%) for the degree of anemia - suggests hypoproliferative/bone marrow failure rather than hemolysis
Clinical Diagnosis: Acute Lymphoblastic Leukemia (ALL) or Acute Leukemia - Strongly Suspected
The combination of findings points overwhelmingly toward an acute hematological malignancy, most likely ALL (Acute Lymphoblastic Leukemia) in a 17-year-old female:
-
Pancytopenia - Leukemic infiltration of bone marrow suppresses normal hematopoiesis, causing anemia, neutropenia, and thrombocytopenia simultaneously.
-
Markedly elevated LDH (2271 U/L) - The most important clue. LDH is a direct marker of tumor cell turnover/lysis. In ALL, LDH rises dramatically due to rapid cell proliferation and death. Values >500-600 are highly suggestive of hematologic malignancy.
-
Very high Vitamin B12 (>2000 pg/mL) - Paradoxically elevated B12 in the presence of pancytopenia (not low B12-deficiency anemia). Extremely elevated B12 is a known marker of myeloproliferative disorders and acute leukemias, where leukemic cells release haptocorrin (transcobalamin-1), causing pseudoelevation.
-
Low uric acid (1.2) - May seem paradoxical; however, in aggressive ALL, pre-treatment uric acid can fluctuate. This could reflect prior allopurinol treatment, poor nutritional intake, or renal loss.
-
Elevated homocysteine (24 µmol/L) - The lab's own interpretation note states homocysteine is elevated in "acute Lymphoblastic Leukemia." This is a strong concordant finding.
-
Normochromic normocytic anemia with low reticulocyte count - Confirms hypoproliferative (marrow-replacement) anemia, not hemolytic or nutritional.
-
Elevated bilirubin + SGPT - Hepatic involvement or mild hemolysis; both are seen in acute leukemia due to marrow/organ infiltration.
-
Lymphocytosis (79%) with severe neutropenia - Pattern consistent with lymphoid malignancy or lymphocyte-predominant marrow.
-
G6PD NORMAL - Drug-induced hemolysis excluded.
-
No parasites on smear - Malaria excluded.
Differential Diagnoses (in order of likelihood):
| Diagnosis | For | Against |
|---|---|---|
| ALL | Pancytopenia, massive LDH, lymphocytosis, high B12, high homocysteine, PICU admission, age 17F | Need bone marrow biopsy/flow cytometry |
| Aplastic Anemia | Pancytopenia, hypoproliferative | Very high LDH not typical; B12 not elevated |
| AML | Pancytopenia, elevated LDH | Lymphocytosis pattern, age favor ALL |
| Viral illness (EBV/CMV) | Lymphocytosis | Pancytopenia severity, LDH extent |
| Megaloblastic Anemia | B12/folate expected low | B12 markedly elevated here, not low |
Urgent Recommended Investigations
- Peripheral Blood Smear for blast cells (lymphoblasts) - urgent
- Bone Marrow Aspiration and Biopsy - critical for diagnosis
- Immunophenotyping / Flow Cytometry - to classify ALL vs AML and subtype
- Cytogenetics/FISH - Philadelphia chromosome (t9;22), t(12;21), hyperdiploidy assessment
- LDH trend (repeat daily)
- Serum ferritin, fibrinogen, PT/aPTT panel - for DIC screen
- Uric acid monitoring (risk of tumor lysis syndrome)
- Hepatitis B & C, HIV serology
- CSF analysis if CNS involvement suspected
Critical Points for Clinical Management
- Patient is in PICU - appropriate given severity (critical pancytopenia with Hb 6.0, Plt 16,000)
- Platelet count 16,000 - high risk of spontaneous bleeding; transfusion threshold considerations
- ANC 383 - severe neutropenia; strict infection precautions, neutropenic fever protocol
- Hb 6.0 - packed cell transfusion likely needed
- Mildly elevated INR (1.38) - monitor coagulation closely; risk of DIC in leukemia
- Hypokalemia (K+ 3.20) - requires IV potassium supplementation
- Watch for Tumor Lysis Syndrome (TLS) once chemotherapy is initiated - monitor uric acid, phosphate, calcium, potassium
Note: This interpretation is for clinical correlation only. Definitive diagnosis requires bone marrow examination and flow cytometry. The treating physician should integrate these findings with clinical history and examination.
Accordingly doctor vitb12 very low in case in report suggest high because of the give blood
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