In all cases, the disease is idiopathic, but is thought to involve inactivation of tumor suppressor genes (Menin gene in MEN1), or involve gain of function mutations (RET proto-oncogene MEN 2a).
primary election | primary school | Primary school | IB Primary Years Programme | Primary election | Primary School | Primary isolate | New Hampshire primary | Raffles Girls' Primary School | Primary source | Primary Reserve | Primary Chronicle | Wood End Primary School | United States Senate Democratic primary election in Pennsylvania, 2010 | United States presidential primary | Puerto Rico Republican primary, 2012 | Primary Colors (film) | Primary Colors | Post Primary Teachers' Association | Ministry for Primary Industries | Ivy Bank County Primary School | Chipembere Primary School | Canberra Primary School | Walkergate Primary School | Trent C of E Primary School | Thornhill Primary School | The Hitchhiker's Guide to the Galaxy Primary and Secondary Phases#The Primary Phase | The Hitchhiker's Guide to the Galaxy Primary and Secondary Phases | St Paul's Primary School | St. Oliver Plunkett's Primary School |
Quaternary and quintary are rare conditions that may be observed after surgical removal of primary hyperparathyroidism, when it has led to renal damage that now again causes a form of secondary (quaternary) hyperparathyroidism that may itself result in autonomy (quintary) hyperparathyroidism.