<prompt> A patient with abdominal wall desmoids tumor should be screened forLung cancerBreast cancerColonic PolypsPancreatic cancer  <response>: Desmoid TumourTumour arising in the musculoaponeurotic structures of the abdominal wall, especially below the level of the umbilicus.It is a completely unencapsulated fibroma. Distribution: Extra-abdominal 60, abdominal wall 25, intra-abdominal 15.Some cases recur repeatedly in spite of apparently adequate excision.About 80 of cases occur in women, many of whom have borne childrenOccurs occasionally in scars of old hernial or other abdominal operation woundsSurgical trauma: Impoant etiological factorEstrogens stimulate desmoid growthOccur in cases of FAPPathologyDiagnosisTreatmentTumour is composed of fibrous tissue containing multinucleated plasmodial masses resembling foreign body giant cells.Usually, of very slow growth, it tends to infiltrate muscle in the immediate areaEventually, it undergoes a myxomatous change and it then increases in size more rapidly.Metastasis does not occur, no sarcomatous changeMRI is the investigation of choice for extremity and abdominal wall desmoids.Wide local excision with 2 cm margin is the treatment of choice.Surgery Radiotherapy: For recurrent desmoid tumors.Refer: Sabistons Textbook of Surgery, 19th edition, pg no: 1095 