Factors VIII, ix and XI, combined deficiency of - CISMeF
Factors VIII, ix and XI, combined deficiency ofOMIM Phenotype
Preferred Label : Factors VIII, ix and XI, combined deficiency of;
CISMeF acronym : FMFD V; MCFD5;
Type : Other, mainly phenotypes with suspected mendelian basis;
Alternative titles and symbols : Familial multiple coagulation factor deficiency V; Multiple coagulation factor deficiency V; MCFD5; FMFD V;
Description : Soff et al. (1981) reported 4 families with combined deficiency of coagulation factors
VIII, IX and XI. Family 1 had several persons with dislocations, e.g., of patella
and hips, and several who had possible hemarthrosis related to trauma. Other probands
were referred because of the finding of prolonged partial thromboplastin time (PTT)
on preoperative testing. Two generations were affected in 2 families, and males and
females had similar procoagulant levels and histories of abnormal hemostasis. No male-to-male
transmission was observed. The pathogenesis of FMFD V is unknown. The 3 factors are
biochemically and functionally different and the possibility of a common precursor
or subunit is highly unlikely. Possibly a common regulator is deficient. Angelopoulos
et al. (1964) described combined deficiency of factors;