Question:
Mycosis fungoides is a
Mycosis fungoides is a
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Recall which cutaneous lymphoma is known for malignant CD4-positive skin-homing lymphocytes.
Updated On: Jul 16, 2026
- B cell lymphoma
- T cell lymphoma
- T cell leukemia
- B cell leukemia
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Question:
The question asks where mycosis fungoides fits among the lymphoid malignancies.
Step 2: Key Concept or Approach:
Mycosis fungoides is the most common form of primary cutaneous lymphoma, and it arises from a specific lymphocyte lineage that homes to the skin.
Step 3: Working Through the Options:
Mycosis fungoides is a cutaneous T cell lymphoma, a low-grade non-Hodgkin lymphoma of CD4-positive helper T cells that infiltrate the epidermis and dermis, producing patches, plaques and eventually tumors, with Sezary syndrome as its leukemic, erythrodermic variant. It is not a B cell lymphoma, since B lymphocytes are not the neoplastic clone here. It is also not classified as a leukemia, whether T cell or B cell, because in its classic form the disease is a tissue-based skin lymphoproliferation rather than a primary bone-marrow or blood process.
Step 4: Conclusion:
Mycosis fungoides is a T cell lymphoma, so that is correct.
The question asks where mycosis fungoides fits among the lymphoid malignancies.
Step 2: Key Concept or Approach:
Mycosis fungoides is the most common form of primary cutaneous lymphoma, and it arises from a specific lymphocyte lineage that homes to the skin.
Step 3: Working Through the Options:
Mycosis fungoides is a cutaneous T cell lymphoma, a low-grade non-Hodgkin lymphoma of CD4-positive helper T cells that infiltrate the epidermis and dermis, producing patches, plaques and eventually tumors, with Sezary syndrome as its leukemic, erythrodermic variant. It is not a B cell lymphoma, since B lymphocytes are not the neoplastic clone here. It is also not classified as a leukemia, whether T cell or B cell, because in its classic form the disease is a tissue-based skin lymphoproliferation rather than a primary bone-marrow or blood process.
Step 4: Conclusion:
Mycosis fungoides is a T cell lymphoma, so that is correct.
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