Maysara Al-Shawaf, BDS, MSii Otu Nartey, BDS, MSc
King Saud University, College of Dentistry, P.O. Box 60169, Riyadh 11545, Saudi Arabia

The habit of chewing khat (Catha edulis) for its euphoric effect has been historically limited to east Africa and southwestern Arabian Peninsula. Two cases of severe oral mucosal ulcerations which occurred after chewing khat are reported. The histopathological examinations of specimens from both patients revealed microscopic features which were considered as a typical lichen planus or lichenoid drug eruption.

Saudi Dental Journal 1994;6(2):98-102.