Abby Jackson Â· Business Insider 01 Sep 2017. South Africa just saw its credit rating downgraded after two of the three major ratings agencies issued depressing assessments of the state of the countryâs economy.
Mastocytosis (say âmas-toe-sigh-toe-sisâ) is a rare disease of the skin (the most common form), or of other parts of the body (very rare), like the stomach, the intestines and the bone marrow.It's caused by having too many mast cells. Mast cells are a kind of blood cell.Mastocytosis can occur at any age.astocytosis (say âmas-toe-sigh-toe-sisâ) is a rare disease of the skin (the most common form), or of other parts of the body (very rare), like the stomach, the intestines and the bone marrow.
1 To help diagnose mastocytosis or a mast cell activation disorder. 2  Mastocytosis is a rare group of disorders associated with an abnormal increase in the number of mast cells, which may accumulate in the skin (cutaneous mastocytosis) or in organs throughout the body (systemic mastocytosis).f systemic mastocytosis is suspected, an elevated tryptase test may be followed by a bone marrow aspiration and biopsy to determine if systemic mastocytosis is present. Typically, there are increased numbers of mast cells in the bone marrow in this disease.