<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, my husband has noticed since about 2 months a lump swelling in hils collar bones, left and right of the neck. It is soft at the touch, the doctors could not taste any enlarged lymphonodes. He did an MRT scan and the radiologist said that it is a lipom actually two, size of a small orange on each side, even though it looks more like two bumps, and that he does not need to take any further measuers. My question is: is an MRT examination accurate enough to exclude with 100 certainty that it is a liposarcom? Should we do further tests or remove the lipom to have a biopsy done? He did the MRT in a small radiology clinic, the doctor said right away that it is a lippom, is the diagnosis really so easy to make after an MRT scan?A part for this, he is also feeling very weak and tired since several weeks, which can not be explained by a diagnosis of lipom. His blood test did not show anything abnormal, nor did a ultrasound examination.Thank you very much and best regards,Simona  <response>: Hi, As Liposarcoma is a malignant tumor of soft tissue and an experienced radiologist might suspect a diagnosis based on test result of MRI and also x-ray. But if you have any suspicion about the diagnosis then you should consult a surgeon, who will do the physical examination of patient and plan with a radiologist and a pathologist that biopsy will be safe for your patient or not. As location, incision and technical aspect of biopsy may affect treatment options and outcome as well. Thank you for consulting Chat Doctor. 