Héctor R Martínez Menchaca

Neonatal Teeth and Riga-Fede Disease

A 3 week-old male presented with ulceration on the ventral surface of the tongue. His parents informed that the patient had poor nutrients intake due to pain caused by tongue ulcer. The intraoral exploration showed ulceration of 10 mm diameter enclosed with a white fibrinous layer, situated on the ventral area of the tongue and two crows of neonatal teeth located in the mandibular anterior region (Figure 1). The incisal edges of teeth were smoothened about 2 mm. During a one–month follow-up his tongue ulcer disappeared.

Focal epithelial hyperplasia

A 14-year-old boy came to our clinic with lumps in his oral cavity. His mother informed us that the lesions had appeared spontaneously 13 years before. The boy had taken numerous drugs for the condition without eff ect. Another 8-year-old son had similar lesions. The patient was of North American Indian descent. Oral examination showed several papulonodular lesions on the cheek mucosa, lip mucosa, and tongue (fi gure). The lesions were painless to palpation, soft, of diff erent diameter, and similar in colour to normal mucosa. The clinical diagnosis was focal epithelial hyperplasia (FEH), a rare benign condition caused by human papillomavirus subtype 13 or 32. An incisional biopsy was done. Microscopic analysis showed parakeratosis, acanthosis, epithelial hyperplasia, and koilocytic cells (fi gure), which confi rmed FEH. The patient had therapy with CO2 laser ablation; however, it is not possible to predict when FEH lesions will recur or where new lesions will be seen. Lancet 2014; 384: 173