What is the most common malignancy affecting spleen —
**Core Concept**
The spleen is a vital organ involved in filtering the blood, storing red blood cells, and serving as a reservoir for immune cells. Malignancies affecting the spleen are rare, but understanding the most common types is crucial for diagnosis and treatment.
**Why the Correct Answer is Right**
The most common malignancy affecting the spleen is **Hodgkin lymphoma**. This is because the spleen is a common site for lymphoma involvement, particularly in the early stages of the disease. Hodgkin lymphoma is characterized by the presence of Reed-Sternberg cells, which are abnormal lymphocytes that proliferate and accumulate in the spleen and other lymphoid tissues. The involvement of the spleen in Hodgkin lymphoma can lead to symptoms such as splenomegaly (enlargement of the spleen), abdominal pain, and fatigue.
**Why Each Wrong Option is Incorrect**
* **Option A:** **Non-Hodgkin lymphoma** is a common malignancy, but it is not the most common type affecting the spleen. While non-Hodgkin lymphoma can involve the spleen, it is more typically associated with other lymphoid tissues.
* **Option B:** **Leukemia** is a type of blood cancer that can affect the spleen, but it is not the most common malignancy specific to the spleen.
* **Option C:** **Hemangiosarcoma** is a rare type of cancer that can affect the spleen, but it is not the most common malignancy affecting this organ.
**Clinical Pearl / High-Yield Fact**
The spleen is a common site for lymphoma involvement, particularly in Hodgkin lymphoma. When evaluating a patient with splenomegaly, consider the possibility of lymphoma, especially if there are other systemic symptoms such as fever, weight loss, or fatigue.
**Correct Answer:** A. Hodgkin lymphoma