Difference between Macule and Papule
- Definition. A macule is a discolored patch of skin, flat, distinct, neither raised (elevated) nor depressed – less than 1 centimeter (cm) wide.
- Causes. Macules can be caused by various conditions that impact the way your skin color and texture look, leading to discolored areas.
- Size
- Etiology and layers of skin involved
- Type of lesion
- Examples. ...
What is a macule in skin?
A macule is a flat, circumscribed, discoloured area of skin that are neither depressed nor raised, less than 1 centimetre wide. They are entirely flat and can be appreciated by visual inspection, they cannot be seen from side. It does not involve any changes in thickness or texture of the skin.
What is the meaning of macula Lu´tea?
macula lu´tea ( macula lu´tea re´tinae) ( macula re´tinae) an irregular yellowish depression on the retina, lateral to and slightly below the optic disk; receives and analyzes light only from the center of the visual field.
What is a 1 cm macule?
Macules are flat lesions that are less than 1 cm in size. They are identified by simply looking at them and touching them. If the lesion (such as a dark spot on the skin) isn't raised and it's less than 1 cm in size, it's by definition a macule.
What is the difference between macula sacculi and macula Utri´Culi?
macula sac´culi a thickening on the wall of the saccule where the epithelium contains hair cells that receive and transmit vestibular impulses. macula utri´culi a thickening in the wall of the utricle where the epithelium contains hair cells that are stimulated by linear acceleration and deceleration and by gravity.
What is the most distinctive feature of a maculopapular rash?
What is a small circumscribed change in the color of skin that is neither raised (elevated) nor de?
Can you treat macules with laser?
Is a macule a cancer?
What is Macul medical term?
[mak´u-lah] (L.) 1. a stain, spot, or thickening; in anatomy, an area distinguishable by color or otherwise from its surroundings.
Where is the macula?
the retinaThe macula is located near the center of the retina; its function is to process harp, clear, straight-ahead vision. The retina is the paper-thin tissue that lines the back of the eye and contains the photoreceptor (light sensing) cells (rods and cones) that send visual signals to the brain.
What does or mean in medical terms?
operating roomOR (abbreviation): Stands for "operating room". A facility equipped for performing surgery. OR is sometimes written O.R.
What is a hallux in medical terms?
Hallux is the medical term for the big toe.
Can macula be repaired?
Vitrectomy surgery A macular hole can often be repaired using an operation called a vitrectomy. The operation is successful in closing the hole in around 9 out of 10 people who've had the hole for less than 6 months. If the hole has been present for a year or longer, the success rate will be lower.
What happens if macula is damaged?
If the damage is near the macula, one could notice various visual effects such as general poor vision, distortion of images such as straight lines appearing wavy, blurry spots in one's central vision, and/or vision with images appearing and disappearing.
What are 5 medical terms?
Top 25 medical terms to knowBenign: Not cancerous.Malignant: Cancerous.Anti-inflammatory: Reduces swelling, pain, and soreness (such as ibuprofen or naproxen)Body Mass Index (BMI): Body fat measurement based on height and weight.Biopsy: A tissue sample for testing purposes.Hypotension: Low blood pressure.More items...
What are medical terminology words?
Medical terminology is used to precisely describe the human body components, processes, illnesses, medical procedures, and pharmacology. Medical terms are used in the field of medicine, and clinical settings.
What are basic medical terminology?
There are three basic parts to medical terms: a word root (usually the middle of the word and its central meaning), a prefix (comes at the beginning and usually identifies some subdivision or part of the central meaning), and a suffix (comes at the end and modifies the central meaning as to what or who is interacting ...
What part of the body is hallux?
The first toe, also known as the hallux ("big toe" or "great toe"), the innermost toe.
What's another name for hallux?
great toethe first or innermost digit of the foot of humans and other primates or of the hind foot of other mammals; great toe; big toe.
What does a bunion look like?
A bunion looks like a bump on the side of the big toe. This bump is actually the result of an abnormality of the foot bones that causes your big toe to lean toward your second toe instead of being straight. This angle produces the bump you see on your toe. In some cases, the bump is painless.
What is the color of the hindwing?
Ventral hindwing duller black than on dorsum; submarginal pale blue band similar to that on dorsum paralleled distad by much narrower pale blue line from Rs to [CuA.sub.2], vague rectangular pale blue macule in Sc+ [R.sub.1]-Rs between the two; similar macule (more prominent on paratype) in Sc+ [R.sub.1]-Rs just proximad of submarginal band with a vague narrow blue line overlapping both in costal cell; medial band less well-defined than on dorsum, prominent only in [CuA.sub.2]-2A and only a few pale blue scales cephalad (better defined on paratype); postbasal band vague throughout (better defined on paratype).
What is a depigmented macule?
Depigmented macules are rectangular, rhomboid, or irregular in shape and usually have a symmetrical distribution.
What is a small discolored patch on the skin?
2. A small discolored patch or spot on the skin, neither elevated above nor depressed below the skin's surface. See also: spot. See also: neuroepithelium of macula. 3. The neuroepithelial sensory receptors of the utricle and saccule of the vestibular labyrinth collectively. See also: neuroepithelium of macula.
What is the color of the macules on the back of the chest?
Dermatological examination revealed grayish, hyperpigmented, excoriated macules and plaques on the back and occipital region, and mild hyperpigmentation on the upper chest.
What is a macula?
mac·u·lae. ( mak'yū-lă, -ū-lē ), 1. A circumscribed flat area, up to 1 cm in diameter, differing perceptibly in color from the surrounding tissue. See also: spot. See also: neuroepithelium of macula. 2. A small discolored patch or spot on the skin, neither elevated above nor depressed below the skin's surface.
What is a small spot on the skin?
1. A small spot, perceptibly different in color from the surrounding tissue. 2. A small, discolored patch or spot on the skin, neither elevated above nor depressed below the skin's surface. 3. In ocular anatomy, indicates that portion of the retina located within the major vascular arcades, temporal to the optic nerve.
What is a discolored spot on the skin?
A discolored spot or area on the skin that is not elevated above the surface and is characteristic of certain conditions , such as smallpox, purpura, or roseola. Also called macula. The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
What is the yellow spot on the macula lutea?
The area of the macula lutea is impregnated by a yellow pigment (macular pigment) in the inner layers and for that reason is often called the yellow spot. Syn. area centralis (although that area is considered to be slightly larger, about 5.5 mm in diameter); punctum luteum. See blue field entoptoscope; fovea centralis; macular pigment.
What is the foveal depression?
An oval area of the retina 3-5 mm in diameter, with the foveal depression at its centre, slightly below the level of the optic disc and temporal to it (its centre lies 3.5 mm from the edge of the disc). The side wall of the depression slopes gradually towards the centre where the fovea centralis is located and where the best photopic visual acuity is obtained. Around the fovea, the ganglion cells are much more numerous than elsewhere, being arranged in five to seven layers. The outer molecular layer is also thicker than elsewhere and forms the outer fibre layer of Henle and there is a progressive disappearance of rods so that at the foveola only cones are found. The area of the macula lutea is impregnated by a yellow pigment (macular pigment) in the inner layers and for that reason is often called the yellow spot. Syn. area centralis (although that area is considered to be slightly larger, about 5.5 mm in diameter); punctum luteum. See blue field entoptoscope; fovea centralis; macular pigment.
What is the thickening of the macula sac?
macula sac´culi a thickening on the wall of the saccule where the epithelium contains hair cells that receive and transmit vestibular impulses. macula utri´culi a thickening in the wall of the utricle where the epithelium contains hair cells that are stimulated by linear acceleration and deceleration and by gravity.
Why is the macula yellow?
The macula is the yellow spot in the central retina that is responsible for detailed central vision and the yellow color is the result of high concentrations of lutein and zeaxanthin. Lutein & Zeaxanthin may improve visual performance in young people.
What is the name of the part of the ovum where the embryo is formed?
macula germinati´va germinal area; the part of the ovum where the embryo is formed. macula lu´tea ( macula lu´tea re´tinae) ( macula re´tinae) an irregular yellowish depression on the retina, lateral to and slightly below the optic disk; receives and analyzes light only from the center of the visual field.
What is the macula den sa?
macula den´sa a zone of heavily nucleated cells in the distal renal tubule that feed information to the juxtaglomerular cells.
What is the macula atro phica?
macula atro´phica a white atrophic patch on the skin.
What is a macule?
Macules are flat, nonpalpable lesions usually less than 10 mm circle. It represents a change in colour, it can be black or white or any and is not raised or depressed compared to the skin surface. It often requires no treatment, but laser surgery or surgical excision. One example of macule is lichen sclerosus.
What does "opacity" mean?
Opacity in English :1. The quality or state of being opaque. 2. Something opaque. 3. a. Obscurity; impenetrability. b. Dullness of mind. Also :opaqueness, cloudiness, density, obscurity, dullness, murkiness, haziness, impermeability, mistiness, milkiness, filminess
What is a macule patch?
Macule is a patch of skin that is changed in color but usually not higher. Its discolored area of skin less than 1 cm wide. It doesn't include any change in the thickness of the skin.
What does "more transparent" mean on a radiograph?
2. On a radiograph, a more transparent area is interpreted as an opacity to x-rays in the body.
How to tell if a macule is flat?
Macules are flat lesions that are less than 1 cm in size. They are identified by simply looking at them and touching them. If the lesion (such as a dark spot on the skin) isn’t raised and it’s less than 1 cm in size, it’s by definition a macule.
What causes a woman's skin to turn white?
Lichen sclerosus is a benign, chronic, progressive skin condition that causes the skin to turn white, thinned and wrinkled, as well as pain and itching. It occurs more commonly in postmenopausal women, but premenopausal women, men and children may be affected. It can develop on any skin s
What are some examples of macules?
... Examples include nevi, warts, lichen planus, insect bites, seborrheic keratoses, actinic keratoses, some lesions of acne, and skin cancers.
What is the most distinctive feature of a maculopapular rash?
The most distinctive feature of a maculopapular rash is the pattern of macules and papules. A macule is a small, flat, red area of discoloration, and a papule is a small, red, raised lesion. As a result, a maculopapular rash appears as red bumps against a red background.
What is a small circumscribed change in the color of skin that is neither raised (elevated) nor de?
Macules: Small circumscribed changes in the color of skin that are neither raised (elevated) nor depressed. Macules are never large. They are basically little spots or blemishes in the skin. The word macule comes from the Latin macula meaning a small spot or blemish.
Can you treat macules with laser?
Macules often require no treatment, but laser surgery, cryosurgery, and regular surgical excision of the macule can be performed. Bleaching or peeling agents may help in some instances. In general, the avoidance of sun exposure can limit the appearance of macules on a person's skin.
Is a macule a cancer?
One may also ask, are Macules cancerous? Skin Cancer and Macules A macule is not, in and of itself, a sign of skin cancer. While a macule may have an appearance suggestive of cancer, further tests would be needed to confirm or exclude a diagnosis. Melanoma can manifest as a dark spot on the skin or with sudden abnormal changes of a mole.
