Mevalonate kinase deficiency (MKD)
The most characteristic signs are:
- Fever attacks lasting between 3 and 10 days, severe stomach pains, diarrhoea, vomiting, headaches, sore throat and sometimes mouth ulcers (more or less large-sized surrounded by redness and often painful),
- pain in the muscles,
- and enlarged neck lymphnodes (like small balls under the skin).
- Small red pimples are sometimes present on the body at the time of fever attack.
The onset of s ymptoms of MKD almost always begins before the age of 1 year.