A gynecologist was examining a patient and revealed symptoms of genital tract inflammation. A smear from vagina contains pyriform protozoa with a spine, flagella at their front; there is also an undulating membrane. What disease can be suspected?

Answer options

1. Balantidiasis
2. Urogenital trichomoniasis
3. Intestinal trichomoniasis
4. Lambliasis
5. Toxoplasmosis

Explanation

Trichomonas vaginalis is a sexually transmitted infection of the urogenital tract, a common cause of vaginitis in women, while men with this infection can display symptoms of urethritis. 'Frothy', greenish vaginal discharge with a 'musty' malodorous smell is characteristic. A smear from the vagina contains pyriform protozoa with a spine, flagella at their front; there is also an undulating membrane. It is also a pear-shaped organism with a central nucleus and four anterior flagella.