Mucinous neoplasms are a type of tumor that produce a thick, gel-like substance called mucus. These tumors can occur in various parts of the body, including the ovaries, pancreas, and gastrointestinal tract. They can be benign (non-cancerous) or malignant (cancerous), and their behavior often depends on their location and specific characteristics. Diagnosis typically involves imaging tests and a biopsy to examine the tissue. Treatment options may include surgery, chemotherapy, or targeted therapies, depending on whether the neoplasm is benign or malignant. Early detection is crucial for better outcomes in patients with mucinous neoplasms.