Fissured tongue is frequently associated with which other tongue condition?

Fissured tongue (scrotal tongue or lingua plicata) is a benign developmental condition characterized by grooves or fissures on the dorsal tongue surface. It frequently coexists with geographic tongue (benign migratory glossitis), and together they are known as 'geographic-fissured tongue.' Both are benign, self-limiting conditions requiring no treatment unless symptomatic. Fissured tongue is also associated with Melkersson-Rosenthal syndrome (triad: recurring orofacial edema, recurrent facial palsy, and fissured tongue). Patients with fissured tongue should maintain good tongue hygiene by gentle brushing to prevent food accumulation in the fissures.