The cancer arising from mesodermal cells constituting the various connecting tissues is called

Appeared in: NHM UP Staff Nurse-2021 Shift-1st

Explanation

Sarcomas are malignant tumors that originate from mesenchymal cells.
Mesenchymal cells are derived from the mesoderm, one of the three primary germ layers in an embryo.
These cells form the body's connective tissues, which include bone, cartilage, fat, muscle, and blood vessels.
Therefore, a cancer arising from mesodermal cells that form connective tissue is classified as a sarcoma.

Option A: Carcinomas are malignant tumors that arise from epithelial cells, which line the internal and external surfaces of the body, not from connective tissue.
Option C: Lymphomas are cancers that originate in lymphoid tissue (part of the immune system), not from the broad category of connective tissues mentioned.
Option D: Leukemias are cancers of the blood-forming (hematopoietic) cells, which typically start in the bone marrow. They are considered 'liquid' tumors, not tumors of solid connective tissue.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Nomenclature and classification of cancers based on tissue of origin as background academic context rather than a clinical decision trigger.
Correctly identifying the tissue of origin (histogenesis) is the foundation of cancer diagnosis and classification. It determines whether a tumor is a sarcoma, carcinoma, etc.
This classification is critical for treatment planning. Sarcomas, carcinomas, and lymphomas have different growth patterns, rates of metastasis, and responses to chemotherapy and radiation.
The prognosis for a patient is heavily dependent on the type of cancer. For example, some sarcomas are highly aggressive, while others are slow-growing.

How to Approach the Question

First, identify the key terms in the question stem: 'mesodermal cells' and 'connecting tissues'.
Recall the basic classification of cancers based on their cell of origin.
Associate 'mesodermal' and 'connective tissue' with the specific cancer type that arises from them.
Systematically evaluate the given options: Carcinoma (epithelial), Sarcoma (connective/mesenchymal), Lymphoma (lymphoid), and Leukemia (blood-forming).
Select the option that directly matches the tissue type described in the question.

Concept Tested & Keywords

Concept Tested: Nomenclature and classification of cancers based on tissue of origin.
Stem keywords: cancer, mesodermal cells, connecting tissues
Lead-in keywords: is called

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Practise the full NHM UP Staff Nurse-2021 Shift-1st

Attempt every question from this paper in a timed mock, then review the full solution for each one.