Hairy Tongue In A 1-Month-Old Infant

45-day-old male infant was brought to the outpatient department with dark discolouration of the dorsum of the tongue that had developed the day before (figure 1).Figure 1 A black/green hue of the dorsum of the tongue.He was born after 38 weeks’ gestation (complicated by pre-eclampsia) to young healthy non-consanguineous parents. His birth weight was 3350 g …