[Cystic lymphangioma on the floor of the oral cavity extending to the submandibular region in adult patients].

Cystic lymphangiomas are congenital benign lesions occurring predominantly in the head and neck area, especially in the posterior cervical triangle. These malformations involving the lymphatic vessels are frequently diagnosed in children. We report the clinical case of a 28-year-old adult patient with cystic lymphangioma on the floor of the oral cavity extending gradually to the left submandibular region.

Primary B cell lymphoma of the tongue: a case report.

Malignant lymphoma of the oral cavity is rare and of the tongue even rarer. Location of oral lymphomas is more frequent in masticatory mucosa than in movable mucosa; the lingual and buccal mucosa is rarely involved; whereas the gingival vestibule and Waldeyer's ring seem to be the most frequent site of occurrence. We describe a 78 year old male who presented with a mass lesion primarily involving the base of tongue and was diagnosed as diffuse large B cell lymphoma.