What does punctate mean?

1 : marked with minute spots or depressions a punctate leaf. 2 : characterized by dots or points punctate skin lesions.

What is a foci in science?

a point of convergence of light or other electromagnetic radiation, particles, sound waves, etc, or a point from which they appear to diverge.

What does punctate calcification mean?

Punctate calcifications are a subset of round calcifications and, by definition, are <0.5 mm in size. Both these types of calcifications are considered typically benign when regional or diffuse in distribution.

What is superficial punctate keratopathy?

Superficial punctate keratitis is an eye disorder caused by death of small groups of cells on the surface of the cornea (the clear layer in front of the iris and pupil). The eyes become red, watery, and sensitive to light, and vision may decrease somewhat.

What is the focus on an ellipse?

As an alternate definition of an ellipse, we begin with two fixed points in the plane. The two fixed points that were chosen at the start are called the foci (pronounced foe-sigh) of the ellipse; individually, each of these points is called a focus (pronounced in the usual way).

How do you find foci?

The formula generally associated with the focus of an ellipse is c2=a2−b2 where c is the distance from the focus to center, a is the distance from the center to a vetex and b is the distance from the center to a co-vetex .

Are punctate calcifications cancerous?

BI-RADS microcalcification distribution descriptors The punctate and amorphous calcifications in this distribution are usually benign, especially if they are bilateral12 (Figura 2).

What does punctate echogenic foci mean?

Punctate echogenic foci of <1 mm are commonly seen by ultrasound (US) in thyroid nodules. These are often termed “microcalcifications” and are relevant because their presence within a nodule is one of several US features known to increase the likelihood of malignancy in both the pediatric and adult populations.

What causes punctate keratopathy?

How is superficial punctate keratitis treated?

Diagnosis is by history, presence of superficial punctate keratitis, and absence of a foreign body or infection. Treatment consists of an antibiotic ointment (eg, bacitracin or gentamicin 0.3% ointment every 8 hours) and occasionally a short-acting cycloplegic drug (eg, cyclopentolate 1% drop every 4 hours).

What is a Directrix and focus?

A parabola is set of all points in a plane which are an equal distance away from a given point and given line. The point is called the focus of the parabola, and the line is called the directrix .

Which is the best definition of the word punctuate?

verb (used with object), punc·tu·at·ed, punc·tu·at·ing. to mark or divide (something written) with punctuation marks in order to make the meaning clear. to interrupt at intervals: Cheers punctuated the mayor’s speech. to give emphasis or force to; emphasize; underline. verb (used without object), punc·tu·at·ed, punc·tu·at·ing.

What is the technical definition of punctate lesions?

The description of the typical MS lesion is “ovoid”. This means “ovalish”. Elliptical is CERTAINLY ovalish. Have an Answer?

What does it mean to mark something with punctuation marks?

to mark or divide (something written) with punctuation marks in order to make the meaning clear. to interrupt at intervals: Cheers punctuated the mayor’s speech.

How big are punctate lesions in MS patients?

Well, she sounds like she wasn’t paying attention to the size! Punctate – pin point – typically smaller than 2mm. 5mm to 7mm are good sized lesions and deserving of great respect and consideration. Elliptical – this sounds VERY characteristic of MS lesions. WTF is she talking about??? The description of the typical MS lesion is “ovoid”.