Herpes gestationis (HG) factor

Pathology: - complement-fixing IgG anti-basement membrane zone antibody found in serum of patients with Herpes (pemphigoid) gestationis - the major subclass of anti-basement membrane IgG antibody is IgG1 in contrast to that observed with bullous pemphigoid which is IgG4

References

Mayo Internal Medicine Board Review, 1998-99, Prakash UBS (ed) Lippincott-Raven, Philadelphia, 1998, pg 168