Mantle cell lymphoma of the larynx: Primary case report.

Introduction: Primary laryngeal lymphomas are exceedingly rare. Only about a hundred cases have been reported. They consist mainly of non-Hodgkin lymphoma, especially of diffuse large B-cell lymphoma and mucosa-associated lymphoid tissue.

[Maxilla-mandibular brown tumors as a first sign of parathyroid adenoma].

Objectives: Through a novel observation of parathyroid adenoma revealed by brown tumors of the jaws and a review of the literature, the authors describe this rare mode of primary hyperparathyroidism discovery.

Material And Methods: The patient was a 23-year-old woman who consulted for a recurrent tumefaction of the maxillary; histology showed reparative giant cell granuloma.

Results: The clinical examination found an osseous tumefaction in continuity with the zygomatic bone and a gingival tumefaction on the mandible symphysis.

[Papillary adenocarcinoma on ectopic thyroid tissue].

Objectives: To report a case of papillary adenocarcinoma occurring on ectopic thyroid tissue in the hyoid bone region.

Material And Methods: A 57-year-old patient consulted for a cervical mass appearing 1 year before, with no signs of compression. The thyroid function was normal.

[Compressive retropharyngeal hematoma in a hemophiliac patient].

Introduction: The retropharyngeal hematoma is rare and usually due to trauma, anticoagulation therapy complication or ascending aortic dissection. This presentation is extremely rare in hemophiliac patients.

Observation: A 23-year-old hemophiliac patient presented with a spontaneous onset large retropharyngeal hematoma extended to the floor of the mouth associated with dyspnea, dysphagia and dysphonia.

Hydatid cyst of the neck.

Hydatid disease located in the head and neck is uncommon, and hydatid cysts rarely present as a cervical mass. We report an unusual case of primary hydatid cyst arising in the soft tissues of the neck. The clinical presentation was non-specific.