Lymphomas are solid cohesive masses of the immune system, originated from the lymphoid tissue. They come from immature precursor of lymph cells called lymphoblasts, but sometimes may also come from more mature lymphocytes. Lymphocytes are white blood cells, roughly...
Melanoma is a misnomer used to describe a malignant tumor of the melanocytes, the cells that give color to the skin. It is also known as malignant melanoma. For benign lesions of the melanocytes, we can use the term...
Oral cancer causes a significant impairment of the quality of life due to significant disfigurement of the face, difficulty in eating, and speaking. There are many predisposing factors, including smoking, alcohol abuse, tobacco chewing, syphilis, dietary deficiencies of riboflavin,...
Meningiomas are tumors of meninges, which are the protective coverings of the brain and the spinal cord. The tumor usually comes from the arachnoid cap cells, one of the three meningeal layers, different from the dura mater and pia...
The primary function of the lungs is breathing, and mediating the exchange of oxygen and CO2. The left lung is divided by the oblique fissure into an upper and lower lobe. The right lung has three lobes and two...
Leukemia refers to a series of malignant neoplasms of hematopoietic stem cells, characterized by progressive and uncontrolled production of immature white blood cells (WBCs). Naturally, this leads to an increase in WBCs counts in the peripheral blood and the...
The thyroid is an endocrine gland located in the region of the neck, in front of the trachea, and below the thyroid cartilage. It has two lobes, and sometimes there’s a pyramidal lobe as well. The lobes are joined...
Bone tumors can be of two different types. They may arise from the bone tissue, and we call them primary bone tumors. But we also have secondary bone, those that metastasize from other tumors and form secondary metastatic masses...
What is Sarcoma? Sarcomas are malignant tumors of the mesenchymal tissue. Mesenchyme is a term used to refer to the connective tissue of the embryo. The origin of the mesenchyme is predominantly mesoderm, but in the head, and neck region...
Patients with ovarian tumors account for less than 3% of gynecological admissions in hospitals. Out of all ovarian tumors, 80-90% are benign, and 20-25% are premalignant and malignant tumors. Benign tumors are divided into germ cell tumors such as...
Luckily for men, testicular cancer is somewhat rare, or at least not as common as other male problems such as benign prostatic hyperplasia. Moreover, testicular cancer has the highest curable rate among all types of cancers, with an excellent...
Every year more than fifty thousand Americans are diagnosed with pancreatic cancer. The exact cause of the cancer is not yet known but scientists has linked the causes to lifestyle and genetics. Understanding some the factors that may lead...