A patient with clustered, white lesions on the buccal mucosa (opposite the upper 1st & 2nd molars) pathognomonic for measles. These are:-: (A) Leukoplakia, (B) Koplik spots, (C) Kaposi spots, (D) None
Answer is B. Koplik spots - These are white lesions on buccal mucosa opposite the first and second lower molars. They are small, bluish-white spots on a red base, smaller than the head of a pin It is pathognomonic of measles. Measles- Causative organism - RNA paramyxovirus Incubation period - 10-14 days Pathognomic c/f - Koplik spots Clinical feature- retroauricular origin of rash M/c complication- serous otitis media