Fibromatosis, Gingival, 4, also known as fibromatosis, gingival, hereditary, 4, is related to fibromatosis, gingival, 1 and fibromatosis, gingival, 2. An important gene associated with Fibromatosis, Gingival, 4 is GINGF4 (Gingival Fibromatosis, Hereditary, 4).