1 â¢ Print, sign and date the two-page Certification. Statement and mail it along with all requested. supporting documentation to the Medicare. contractor. 2  Note: 3  Do not mail the CMS-855 paper that can. be printed from Internet-based PECOS.  Retain this information for your records.
Definition of mastic. 1 : an aromatic resinous exudate from mastic trees used chiefly in varnishes.
Mast cell leukemia is an aggressive hematological malignancy characterized by circulating mast cells greater than 10% or immature mast cells in bone marrow aspirates greater than 20% that rapidly affects the bodily organs. This condition is rare, however, it is associated with fatal disease progression. Mast cell sarcoma. A mast cell sarcoma is a single tumor composed of abnormal mast cells. This condition is very rare and often is not associated with additional skin involvement.