[Post syphilitic oro-nasal communication].

Introduction: Oro-nasal communication occurs due to a lack of bone and mucous membranes between the oral cavity and the nasal fossae, rarely subsequent to tertiary syphilis.

Case Report: A 27 year-old woman with a history of an untreated genital chancre which developed 7 years earlier, presented hard palate necrosis surrounded with granulation tissue. Syphilitic gum of the hard palate was diagnosed.

[Ankylosis of the temporomandibular joint: a rare manifestation of ankylosing spondylitis].

Introduction: The ankylosing spondylitis is a chronic inflammatory rheumatoid disease with predilection in the axial structures. The temporomandibular joint (TMJ) is involved in 10 to 24% of cases. Ankylosis of the TMJ is exceptional, only 11 cases being reported to date.