Where are Koplik spots located?

Koplik spots are seen with measles. They are small, white spots (often on a reddened background) that occur on the inside of the cheeks early in the course of measles.

What do Koplik spots indicate?

Koplik’s spots (also Koplik’s sign) are a prodromic viral enanthem of measles manifesting two to three days before the measles rash itself. They are characterized as clustered, white lesions on the buccal mucosa (opposite the lower 1st & 2nd molars) and are pathognomonic for measles.

When do Koplik spots appear?

Tiny white spots (Koplik spots) may appear inside the mouth two to three days after symptoms begin.

What causes Koplik spots in measles?

Koplik spots are highly characteristic of the prodromal phase of measles and can often be identified before the onset of the rash. Since they were originally described in 1896,2 these millimetric, erythematous, white or grey specks on the buccal mucosa have been regarded as a pathognomonic feature of measles.

Which disease causes Koplik spots?

Koplik spots are the peculiar spots present on the buccal mucosa and are considered a diagnostic/pathognomic feature of measles/rubeola in the pre-eruptive stage. The term Koplik spot derives its name from Dr. Henry Koplik of New York, who first described them in 1896.

How common are Koplik spots?

Koplik spots were observed in 717 of 3023 cases (23.7%). Among these, the measles virus was detected in 202 cases (28.2%), while the rubella virus was detected in 125 cases (17.4%). Other viruses were detected in 51 cases having the spots (7.1%).

When do Koplik spots disappear?

They have been described as ‘salt grains on a red background’. Koplik’s spots occur approximately 48 hours before the measles exanthem occurs. Koplik’s spots disappear by the second day of the exanthem.

How long do Koplik spots last?

The rash begins to fade 3–4 days after it first appears, and changes to a purplish brownish color which is sometimes followed by fine desquamation. Clinical improvement ensues within 48 hours of the appearance of the rash.