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Desmoplastic reaction to breast cancer. Desmoplasia refers to growth of dense connective tissue or stroma. [2] This growth is characterized by low cellularity with hyalinized or sclerotic stroma and disorganized blood vessel infiltration. [3] This growth is called a desmoplastic response and occurs as result of injury or neoplasia. [2]
In the brain, a small cavity called a lacune is an ischemic cavity that can arise due to brain necrosis, due to arteriolosclerosis. [15] [16] Cause. It can be caused by chronic benign (essential) hypertension [17] malignant hypertension. [4] [18]
Systemic scleroderma, or systemic sclerosis, is an autoimmune rheumatic disease characterised by excessive production and accumulation of collagen, called fibrosis, in the skin and internal organs and by injuries to small arteries. There are two major subgroups of systemic sclerosis based on the extent of skin involvement: limited and diffuse ...
The signs and symptoms of most neoplasms are due to their mass effects caused by the invasion and destruction of tissues by the neoplasms' cells. Signs and symptoms of a cancer causing a paraneoplastic syndrome result from the release of humoral factors such as hormones , cytokines , or immunoglobulins by the syndrome's neoplastic cells and/or ...
Atherosclerosis [a] is a pattern of the disease arteriosclerosis, [8] characterized by development of abnormalities called lesions in walls of arteries.This is a chronic inflammatory disease involving many different cell types and driven by elevated levels of cholesterol in the blood. [9]
[15] [4] In the United States it is the most common cause of cancer and death from cancer among children. [2] Acute lymphoblastic leukemia is notable for being the first disseminated cancer to be cured. [16] Survival for children increased from under 10% in the 1960s to 90% in 2015. [2] Survival rates remain lower for babies (50%) [17] and ...
It is a genetic disorder due to a germline mutation in the NF1 gene. This gene encodes a protein called neurofibromin that is involved in controlling cellular growth. [10] Malfunction of the gene results in multisystem manifestations involving the skin, central nervous system, peripheral nervous system, eyes and musculoskeletal system.
The skin weighs an average of 4 kg (8.8 lb), covers an area of about 2 m 2 (22 sq ft), and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are glabrous skin, the nonhairy skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [16]