blue spot

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mac·u·la ce·ru·'le·a

a bluish stain on the skin caused by the bites of fleas or lice, especially pediculosis pubis.
Synonym(s): blue spot (1)

mon·go·li·an spot

(mon-gō'lē-ăn spot)
Any of a number of dark-bluish or mulberry-colored rounded or oval spots on the skin in the sacral region due to the ectopic presence of scattered melanocytes in the dermis. These congenital lesions are frequent in black, Native American, and Asian children from 2-12 years of age after which time they gradually recede; they do not disappear on pressure and are sometimes mistaken for bruises from child abuse.
Synonym(s): blue spot (2) .

mac·u·la ce·ru·le·a

(mak'yū-lă sĕ-rū'lē-ă)
A bluish stain on the skin caused by the bites of fleas or lice, seen especially in pediculosis pubis.
Synonym(s): blue spot (1) .


1. A small surface area differing in appearance from its surroundings. Synonym: macula
2. Randomly collected, as in “spot” urine specimen.

ash-leaf spot

White macules found on the trunk and extremities of persons with tuberous sclerosis.

Bitot spots

See: Bitot spots

blind spot

1. Physiological scotoma situated 15° to the outside of the visual fixation point; the point where the optic nerve enters the eye (optic disk), a region devoid of rods and cones. See: scotoma
2. In psychiatry, the inability of an individual to have insight into his or her own personality.

blue spot

Mongolian spot.

Brushfield spot

See: Brushfield spot

cherry-red spot

A red spot occurring on the retina in children with Tay-Sachs disease.
Synonym: Tay spot

cold spot

An area on a nuclear medicine scan in which no radioactive tracer is taken up, indicative of nonfunctioning tissue in a gland or other structure.

corneal spot


cotton-wool spot

A tiny infarct in the retina, present in hypertension, diabetes mellitus, bacterial endocarditis, and other diseases.

focal spot

The area on the x-ray tube target that is bombarded with electrons to produce x-radiation.

Fordyce spots

See: Fordyce disease

genital spot

The area on the nasal mucosa that tends to bleed during menstruation.
See: vicarious menstruation

hematocystic spot

Any of the focal red marks seen on esophageal varices. They consist of aneurysms of the wall of the dilated blood vessel. Their presence increases the likelihood that the varix may bleed.

histo spots

Scarring of the macula found in those infected with Histoplasma capsulatum.

hot spot

1. An area on the surface of the skin that, when stimulated, experiences a sensation of warmth.
2. In a nuclear medicine scan, a region of the image that shows an abnormally high concentration of injected isotope.
3. Any location that has been radioactively contaminated.
4. . In radiation oncology, a tissue region that is exposed to much more radiation than neighboring tissues.

hypnogenic spot

Hypnogenic zone.

Koplik spot

See: Koplik spot

liver spot

A popular term for a pigmentary skin discoloration, usually in yellow-brown patches.
See: Lentigo senilis

milk spot

A dense area of macrophages in the omentum.
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mongolian spot

Any of the blue or mulberry-colored spots usually located in the sacral region. It may be present at birth in Asian, American Indian, black, and Southern European infants and usually disappears during childhood.
Synonym: blue spot See: illustration

rose spots

Rose-colored maculae occurring on the abdomen or loins in typhoid fever.

Roth spots

See: Roth spots

ruby spot

Cherry angioma.

shin spots

The colloquial name for necrobiosis lipoidica diabeticorum. This condition is usually, but not always, associated with diabetes.
See: necrobiosis lipoidica diabeticorum

Soemmering spot

See: Soemmering, Samuel T. von

Tardieu spot

See: Tardieu spot

Tay spot

See: cherry-red spot

Trousseau spots

See: Trousseau, Armand

white spots

Light-colored, elevated areas of various sizes occurring on the ventricular surface of the anterior leaflet of the mitral valve in endocarditis.

yellow spot

Abbreviation: y.s.
Macula (3).
References in periodicals archive ?
The data regarding presence or absence of Mongolian blue spots in different ethnic groups of Pakistan was analyzed and crosstabulation is shown in Table 4.
We will count to 3." Using a pencil, point to the red spot and say, "1." Point to the yellow spot and say, "2." Point to the blue spot and say, "3.
Dorsal and anal-fins blue, with irregularly-distributed small light blue spots. Caudal-fin blue with higher concentration of light blue spots than dorsal and anal fins.
They found that the blue spots explode during hostile encounters with other species.
tumefaciens, the frequency of the blue-spotted embryos increased by 50%, as well as the number of blue spots per embryo to 15%, and the percentage of herbicide-resistant callus rose to 29.6% for Hi-II alone (Table 1).
Some little blue spots shine through the predominantly black, white, and gray.
3a Body orange; [greater than or equal to] 15 soft dorsal rays; juveniles with blue spots on body: Hypsypops rubicundus
If added, the places that support Google Street View will show up as blue spots or blue paths on the map once the street view toggle is pressed, and once it is enabled, the user can navigate normally in the first person.
4.--DHW marginal region with 3 conspicuous blue spots with white scales in central area in [M.sub.2]-[M.sub.3], [M.sub.3]-Cu[A.sub.1] and Cu[A.sub.1]-Cu[A.sub.2] ...
The white curtains with blue spots she had drawn shut shortly before he passed away are open now to let the sunlight in.
Vertical bars tinged with white and electric blue spots are common on "lit up" sails, such as those shown in under water videos corralling sardines into balls like ocean cowboys rounding up cattle.
In an examination administered by a prison physician, Soltan had "very obvious blue spots under his skin all over his body," a statement on the page said.