B21: Human immunodeficiency virus [HIV] disease resulting in malignant neoplasms

B21.3: HIV disease resulting in other malignant neoplasms of lymphoid, haematopoietic and related tissue

HIV disease resulting in other malignant neoplasms of lymphoid, hematopoietic, and related tissue is a complex condition that is characterized by the weakening of the immune system due to Human Immunodeficiency Virus (HIV) infection, leading to the development of certain types of malignant cancers. These cancers primarily occur in the lymphoid tissue (which includes lymph nodes), hematopoietic tissue (which relates to the formation of blood or blood cells), and associated tissues. Lymphomas, or cancers of the lymphatic system, are common examples of such malignant growths. People with this condition may experience symptoms like unexplained weight loss, chronic fever, frequent infections, fatigue, night sweats, and swelling of the lymph nodes. This condition is typically progressive, meaning that it worsens over time, especially without treatment. It's crucial to note that the HIV infection is usually acquired through unprotected sexual contact, sharing needles, or being born to an infected mother.