Vol.98No.9contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 98 No. 9 September 2005
Leukoplakia of the Oral Cavity Possibly Induced
by Pipe Smoking: Report of Two Cases
Daimon Hashimoto, Meijin Nakayama, Kazuo Yao and Makito Okamoto
(Kitasato University School of Medicine)
Kazuhiro Yamamoto
(National Sagamihara Hospital)
We experienced two cases of leukoplakia of oral cavity that were induced by pipe smoking. The first patient, a 62-year-old-male, complained of oral dysesthesia. The leukoplakia was found in the palatum durum on the left side, in the inner surface of the gingiva (right maxillodental first molar). He had smoked pipe tobacco for about 10 years. The second patient, a 59-year-old male, complained of pain in the oral cavity. The leukoplakia was found in the left palatum durum and gingiva (left maxillodental second molar, bilateral mandibulodental second molar). He had smoked pipe tobacco for about 15 years. Their leukoplakia was excised by CO2 laser.
The shape of the pipe's lip was related to the locations where leukoplakia was found. A perfect match of leukoplakia location to the place where the pipe's lip contacted suggested the pipe smoking as the cause of the disease.
Key words : leukoplakia, pipe smoking