A more or less obvious knot is located near the border, which is usually scratched. The assessment of a skin nodule includes a description of its appearance, location, how it feels when touching it, and any associated symptoms that may provide clues to an underlying medical condition. [4] Mining is a tractor-sized vacuum cleaner attached to an overlying container by pipes that suck nodules to the surface. PRIMARY LESION – A lesion directly associated with the disease process and described using established dermatological terminology. A mass of compact, densely stained lymphocytes that form the structural unit of lymphoid tissue. These nodules can occur individually, in groups (as in Peyer`s patches), or in encapsulated organs such as lymph nodes. Each contains a lighter-colored germinal center in which new lymphocytes are formed. SYN: SEE: Lymph nodes Lymph nodes in the cortex of a lymph node. The gland, which is seen as a nodule, is pulled forward with tweezers. Any isolated mass lesion found in the lungs, usually during an X-ray study done for another reason. Most of the small lumps identified in this way are benign, although smokers, patients who are already known to have cancer in another organ system, and older patients are at increased risk of a single lump being a new malignant tumor or metastasis from another source. The first step in evaluating a solitary lung nodule is to look for previous chest X-rays.
If the mass can be found on films made several months or years earlier and have not changed in size, shape or calcification, it is probably benign and can be followed conservatively. Newly identified lesions in the lungs that were not previously present are usually assessed with other studies such as lung CT scans, sputum studies or biopsies. Often unintentionally discovered on a chest X-ray, a single mass in the lung must be evaluated to rule out cancer. [9] BOLD – An acute, round, firm, circumscribed, follicle-centered mass caused by infection and usually larger than 10 mm in diameter. Characterized by pain, redness and potentially visible pus. The process is surprisingly slow, with an average node estimated at a speed of a few centimeters every million years and the slowest at only a few millimeters during this period. German Britannica: Translation of nodules for Arabic speakers An isolated mass of lymphoid tissue, as it occurs in the mucous membranes. A small, non-sensitive swelling similar to Aschoff`s bodies found above bony protrusions in people with rheumatic fever or rheumatoid arthritis (in rheumatoid arthritis, it is called a rheumatoid mass).
Nodular swelling and possible bone changes in the lower leg and foot, subjected to pressure and trauma on a surfboard. The nodules can be painful. SYN: SEE: Surfer nodule A visible or palpable mass in the thyroid gland that is benign about 90% to 95% of the time. A history of irradiation of the head or neck increases the likelihood that the lesion is malignant, as does the appearance of the mass in the first decades of life. Fine needle aspiration biopsy is the first and often definitive diagnostic test. PATIENT CAREThe can be sure that more than 99% of benign thyroid nodules remain benign after 5 years of follow-up. Undoubtedly, a vortex of this hole is responsible for the deposit of snow and, by accretion, the construction of the nodule. Taber`s Cyclopedic Medical Dictionary 24th Edition Online + App by F.A. Davis and Unbound Medicine.
Find 75,000 medical and nursing definitions. Download it on iPhone, iPad and Android. Complete product information. The deep variety begins with the superficial form, or it begins with a tubercle or nodule in the skin. In medicine, nodules are small, solid pieces, usually more than 1 cm in diameter. [1] [2] When filled with fluid, they are called cysts. [2] Smaller soft tissue bumps (less than 0.5 cm) may be called papules. [3] These sample phrases are automatically selected from various online information sources to reflect the current use of the word “nodule”. The views expressed in the examples do not represent the views of Merriam-Webster or its editors. Send us your feedback. A small brown bump that can be seen in the spleen and other organs and consists of necrotic tissue encrusted by iron salts.
Five rods covered with nodules roll with the movement of the foot. Each node contains in its core a small piece of shell or fossil surrounded by minerals that grow like crystals on its surface. A group of unencapsulated lymph nodes, such as Peyer`s patches of the small intestine. A subcutaneous mass of fibrous tissue, which may be present in patients with rheumatic fever. SEE: subcutaneous nodule for Fig. Skin nodules include dermatofibromas[5] and pyogenic granulomas. [6] Nodules can form in response to injuries to tendons and muscles,[7] and are commonly found on the vocal cords. [8] They can occur in organs such as the lungs,[9] or thyroid,[10] or be a sign of other conditions such as rheumatoid arthritis. [11] CT and US colloidal thyroid nodules with calcification[15][10] A small bump of skin in typhoid. They consist of an infiltration of mononuclear cells around the vessels.
In the most common variant of deep-sea mining, giant excavation robots search the seabed for polymetallic nodules for small clumps of large potato-sized minerals such as cobalt and nickel. Characteristic nodule of typhoid fever present in the liver. CARBUNCLE – An inflammatory nodule consisting of two or more confluent boils with separate heads. It was a small bump in his brain, just like there was a small lump in Oliver`s neck. BAU – A linear or serpiginous (wavy, snake-like) filiform tunnel in the epidermis, usually made by a parasite. Middle English, from Latin nodulus, diminutive of nodus Painless smooth or warty lesion due to smallpox virus transmitted from the udders of infected cows to the hands of milkers. SEE: Paravaccine SECONDARY LESION – modification of a primary lesion resulting from the development of the primary lesion, traumatic injuries or other external factors. A small round density 1 to 5 mm in diameter, as seen on chest X-ray, for example in disseminated tuberculosis. TUMOUR – A solid, solid lesion usually larger than 20 mm in diameter.
Tumors can be above, at the level with, or below the surface of the skin. Also known as mass. To see other topics, please log in or purchase a subscription. EXCORIATION – A skin abrasion that is usually superficial and is due to scratching of the skin. Excoriations can be linear or focal. PUSTULA – A purulent vesicle (filled with pus). The pustules are filled with neutrophils and can be white or yellow. Not all pustules are infected. BUBBLE (PLURAL = BULLAE) – Raised and circumscribed blister, with a diameter of more than 10 mm* and filled with liquid. The fluid may be clear, serous, hemorrhagic or purulent. EROSION – A flat, moist or crusted lesion caused solely by the loss of superficial layers of the upper epidermis such as friction or pressure. MORPHOLOGY – The shape or structure of a single skin lesion.
Nodules can form on tendons and muscles in response to injury,[7] and are commonly found on the vocal cords,[8] They occur in conditions such as endometriosis[12], neurofibomatosis[6] and rheumatoid arthritis. [11] They can also occur in Kaposi`s sarcoma[13] and gonorrhea. [14] CYST – A closed cavity or bag containing liquid or semi-solid material. A cyst may have an epithelial or endothelial mucosa. HEMATOMA – A collection of extravased blood that is relatively or completely enclosed in a room. Blood is usually clotted (or partially coagulated) and can have different degrees of organization and color depending on the weather. TEANGIECTASIA – Small superficial cutaneous blood vessels that become permanently visible by dilation. ULCERATES – A limited loss of the epidermis and at least the upper dermis. Ulcers are further classified by depth, boundary, shape, edge and tissue at their base.
MACULE – Circumscribed flat area of discolouration less than 10 mm in diameter*. Nodule: A small collection of tissue that is palpable (felt) at any level of the skin (in the epidermis, dermis or subcutaneous) or in any other tissue of the body.
