Introduction and importance Calcifying odontogenic cyst (COC) is a rare lesion of jawbone. It is classified among development cyst in the new WHO classification of tumors of the head and neck in 2017. It is a rare pathology, which is found more in the upper maxillae, with a predominance in women in the second or third decade. The diagnosis is based on the analysis of clinical, radiological and histological features. Case presentation We report the case of a 17-year-old patient referred by his orthodontist following the fortuitous discovery of a mixed radiolucent/radiopaque image in the right jaw ranging from the tooth 11 to the tooth 16, for whom the clinical, radiological examination associated with fine needle aspiration cytology suggested a cystic lesion. Clinical discussion Management initially consisted of decompression of the lesion and complete enucleation after nine months. Histopathological examination gave the diagnosis of calcifying odontogenic cyst. The follow-up showed favorable evolution.

Introduction the Cogan syndrome is a very rare, systemic disease that affects young adults. Very few cases are described in the literature. We report the case of a patient with a severe form of Cogan syndrome. Case presentation This is a young patient who presented with a painful left red eye and bilateral visual impairment evolving for 5 years with ENT signs such as right hypoacusis and vertigo. Clinical examination in this patient found bilateral hypertensive panuveitis, vertigo of peripheral origin and hypoacusis on the right. The patient is currently on corticosteroid therapy with stabilization of the lesions. Discussion This pathology is characterized by ocular and audio-vestibular involvement with sometimes other visceral manifestations. The etiopathogeny is not well known, the evolution is marked by the functional prognosis (visual and auditory) and the vital prognosis (aortic insufficiency). The treatment is essentially based on corticotherapy and the treatment of complications. Conclusion It is a very rare condition that should be considered when there are suggestive signs, because the evolution is severe without appropriate care. This underlines the importance of early management and the need for optimal follow-up to avoid the occurrence of complications that are disabling or even fatal.