Trismus-pseudocamptodactyly syndrome with bilateral hypoplastic mandibular condyles and shallow mandibular fossa: A case report

Chieko Kusano, Naoaki Hori, Kazumi Izawa, Rika Kosaki, Gen Nishimura, Tomonobu Hasegawa

Research output: Contribution to journalArticle


Trismus-pseudocamptodactyly syndrome (TPS) (OMIM#158300), also known as Hecht syndrome, is a rare autosomal dominant distal arthrogryposis. Bilateral hyperplasia of the coronoid processes has been reported to cause trismus. In this study, we report a case of TPS definitively diagnosed on the basis of clinical signs in a patient who had bilateral hypoplastic mandibular condyles and shallow mandibular fossa; TPS in such patients have never been reported in the literature. On the basis of the present case, we propose that a hypoplastic mandibular condyle and shallow mandibular fossa are also clinical features of TPS.

Original languageEnglish
JournalOral Science International
Publication statusAccepted/In press - 2018 Jan 1



  • Hypoplastic mandibular condyle
  • Shallow mandibular fossa
  • Trismus
  • Trismus-pseudocamptodactyly syndrome

ASJC Scopus subject areas

  • Otorhinolaryngology

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