| Phenotype and clinics | Normally, presence of multiple desmoid tumours especially in the mesentery. Desmoid tumours can develop elsewhere and are often initiated after trauma. Micro-adenomas in the lower gastrointestinal tract, often not reported. Upper GI polyps are often observed. |
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| Neoplastic risk | Strictly speaking desmoid tumours are not neoplastic but they are locally invasive and highly destructive. Often associated with extreme pain and respond poorly to treatment. Usually they occur in association with familial adenomatous polyposis. Desmoid tumours usually occur in the abdominal cavity and have been associated with traumatic events that include surgery and childbirth. They have been reported at other anatomical sites. |
| Treatment | There is no defined treatment that is affective in all cases. Nevertheless, the use of non-steroidal anti-inflammatory drugs (NSAIDs) in combination with tamoxifen has been suggested but there is no firm evidence to indicate its benefit. |
| Evolution | Disease development involves the loss of APC and appears to be associated with 3' APC germline mutations. Little is known about downstream events in the evolution of the disease. |
| Prognosis | Patients with hereditary desmoid disease fall into three categories; those that develop disease, which spontaneously regresses (very rarely reported); patients with stabile disease that does not progress: and patients with severe progressive and fatal disease. |
| Hereditary desmoid disease due to a frameshift mutation at codon 1924 of the APC gene. |
| Eccles DM, van der Luijt R, Breukel C, Bullman H, Bunyan D, Fisher A, Barber J, du Boulay C, Primrose J, Burn J, Fodde R |
| American journal of human genetics. 1996 ; 59 (6) : 1193-1201. |
| PMID 8940264 |
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| Constitutive transcriptional activation by a beta-catenin-Tcf complex in APC-/- colon carcinoma. |
| Korinek V, Barker N, Morin PJ, van Wichen D, de Weger R, Kinzler KW, Vogelstein B, Clevers H |
| Science (New York, N.Y.). 1997 ; 275 (5307) : 1784-1787. |
| PMID 9065401 |
| |
| Desmoid tumour: a pleomorphic lesion. |
| Kulaylat MN, Karakousis CP, Keaney CM, McCorvey D, Bem J, Ambrus Sr JL |
| European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology. 1999 ; 25 (5) : 487-497. |
| PMID 10527597 |
| |
| Somatic mutations of the APC gene in colorectal tumors: mutation cluster region in the APC gene. |
| Miyoshi Y, Nagase H, Ando H, Horii A, Ichii S, Nakatsuru S, Aoki T, Miki Y, Mori T, Nakamura Y |
| Human molecular genetics. 1992 ; 1 (4) : 229-233. |
| PMID 1338904 |
| |
| Familial infiltrative fibromatosis (desmoid tumours) (MIM135290) caused by a recurrent 3' APC gene mutation. |
| Scott RJ, Froggatt NJ, Trembath RC, Evans DG, Hodgson SV, Maher ER |
| Human molecular genetics. 1996 ; 5 (12) : 1921-1924. |
| PMID 8968744 |
| |
| Orientation of asymmetric stem cell division by the APC tumor suppressor and centrosome. |
| Yamashita YM, Jones DL, Fuller MT |
| Science (New York, N.Y.). 2003 ; 301 (5639) : 1547-1550. |
| PMID 12970569 |
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