HAEM5:In situ mantle cell neoplasm: Difference between revisions
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== | ==WHO Classification of Disease== | ||
Mature B-cell neoplasm | {| class="wikitable" | ||
!Structure | |||
!Disease | |||
|- | |||
|Book | |||
|Haematolymphoid Tumours (5th ed.) | |||
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|Category | |||
|B-cell lymphoid proliferations and lymphomas | |||
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|Family | |||
|Mature B-cell neoplasms | |||
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|Type | |||
|Mantle cell lymphoma | |||
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|Subtype(s) | |||
|In situ mantle cell neoplasm | |||
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==Definition / Description of Disease== | ==Definition / Description of Disease== | ||
The Latin phrase “in situ” means “in the natural or original position or place”, as per the Merriam-Webster dictionary. In normal benign lymphoid tissues, the mantle zones of lymphoid follicles are formed by naïve mature B-cells after maturation from precursor B-cells in the bone marrow. In situ mantle cell neoplasm is a pre-malignant neoplasm composed of mantle cells “in their natural position” that harbor, in addition, the t(11;14) balanced translocation characteristic of mantle cell lymphoma with the overexpression of cyclin D1 protein. | The Latin phrase “in situ” means “in the natural or original position or place”, as per the Merriam-Webster dictionary. In normal benign lymphoid tissues, the mantle zones of lymphoid follicles are formed by naïve mature B-cells after maturation from precursor B-cells in the bone marrow. In situ mantle cell neoplasm is a pre-malignant neoplasm composed of mantle cells “in their natural position” that harbor, in addition, the t(11;14) balanced translocation characteristic of mantle cell lymphoma with the overexpression of cyclin D1 protein. | ||