50. Match the following tumor cell origin with their nomenclature.
(1) A – a, B – c, C – d, D – b
(2) A – d, B – a, C – b, D – c
(3) A – c, B – b, C – d, D – a
(4) A – b, B – d, C – a, D – c
Correct matching:
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A: D (e.g., lymphoma, leukemia – hematopoietic origins)
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B: A (e.g., carcinomas – epithelial origin)
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C: B (e.g., sarcomas – mesenchymal origins)
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D: C (e.g., neuroectodermal tumors)
Most likely correct option:
(3) A – c, B – b, C – d, D – a
Explanation:
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A (Lymphoid and hematologic cancers): Corresponds to c (hematopoietic origin).
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B (Carcinomas): Correspond to b (epithelial origin).
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C (Sarcomas): Correspond to d (mesenchymal origin).
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D (Neuroectodermal tumors): Correspond to a (neural or neuroectodermal origin).
Summary Table
| Tumor Cell Origin | Nomenclature Type |
|---|---|
| Hematopoietic (blood, lymph) | c (e.g., leukemia, lymphoma) |
| Epithelial (skin, organ epithelium) | b (carcinomas) |
| Mesenchymal (muscle, bone, etc.) | d (sarcomas) |
| Neuroectodermal (nervous tissue) | a (neuroblastoma, glioma) |