Lipomas are generally referred to as lipomas, which may contain a small amount of mucus but will not be rich in mucus, and those that are rich in mucus may be mucinous liposarcomas.
Lipomas are common benign soft tissue tumors made up of mature fat cells and can occur anywhere in the body where there is fat. They occur in the shoulder, back, neck and abdomen, followed by the proximal extremities. They are rarely malignant and are easily removed by surgery.
Pathological examination of liposarcoma is yellowish in color, the tumor cells are mainly mature adipocytes, a few adipoblasts can be seen, there are usually not many blood vessels in the tumor, and sometimes focal mucinous degeneration, calcification or ossification can be seen, so the body of the liposarcoma may contain a small amount of mucus, and it is usually not rich in mucus.
Mucinous liposarcoma may have mucus-like stroma under the microscope, and large mucus pools can be seen, and there are characteristic mucus lakes forming “alveolar-like” morphology, so it is rich in mucus. Mucinous liposarcoma belongs to malignant tumors, and its treatment includes surgery, radiotherapy and chemotherapy.
Patients should consult with their doctor if they are found to have a liposarcoma, and pathology is routinely required after surgical resection to rule out malignancy.