Tooth in oropharynx.

The incidence of ectopic teeth has increased. In many cases, the etiology of ectopic teeth cannot be identified. Ectopic tooth in deciduous dentition period is very rare and information is limited about its causes and characteristics. The conditions commonly associated with an increased prevalence of ectopic teeth include cleft lip and palate, cleidocranial dysplasia, and Gardner syndrome. The diagnosis is made by the clinical and radiological examinations. The indication for extraction in ectopic teeth cases is in general determined by the presence of symptomatology, or by the need for preventing future complications. We present a case of an ectopic maxillary tooth in a 4 year-old boy. In addition, this report also addresses a young patient with a tooth in the oropharynx with the objective of non traumatic etiology, and such a clinical presentation is extremely rare. The authors believe the case presented here is the first documented case of an ectopic supernumerary tooth seen in the oropharynx.

Concomitant hypo-hyperdontia with dens invaginatus.

Although developmental anomalies of tooth number are quite common in permanent dentition, concomitant occurrence of hypohyperdontia is a very rare mixed numeric anomalous condition of teeth. Very few cases of this condition have been reported in the English literature. Here we report such a rare case noted in a 26 year-old male dental graduate with no other associated systemic condition or syndrome.

Extranodal non-Hodgkin's lymphoma presenting as gingival mass.

Non-Hodgkin's lymphoma (NHL) commonly presents as non-tender, enlarged lymph nodes, accompanied by diffuse symptoms of fatigue and low-grade intermittent fever and it is derived predominantly from the cells of the B lymphocyte series. NHL cases occur extra-nodally and in 3% of these cases the initial presentation may be in the oral cavity. Though extra-nodal NHL of the oral cavity is a rare finding, patients with oral lesions of NHL commonly present at the dental clinic in the first instance. A careful clinical evaluation supported by histopathological and other laboratory investigations will help in identifying the disease at an early stage, resulting in better prognosis. Any delay in diagnosis has important implications on the morbidity and mortality of the condition. Due to the rarity of intraoral NHL, we present one such a case with a complaint of tumor-like mass on the gingiva of lower molar region. The lesion was clinically thought as pyogenic granuloma and later diagnosed as extra nodal NHL of the oral cavity.

Osteoid osteoma.

Osteoid osteoma is a benign tumor of the bone which arises from osteoblasts and is extremely rare in jaws. Only 15 cases of osteoid osteoma have been reported in English-language literature. This case report is presented here due to its rarity.