Ehlers danlos syndrome: Hyperextension of joints, hyoermobility of TMJ (Rubber man syndrome) 
Crest syndrome 
Steven Johnson syndrome:
Severe bullous form of erythema multiforme involving skin, eyes, oral cavity and genitalia. Goltz Gorlin syndrome: multiple papillomas, atrophy of skin, polydactyly, sunken eyes, sparse hair. 
Grinspan syndrome
Definition of syndromes are extracted from Dental pulse 13th edition.