WSI21-73-Case-146
From MGH Learn Pathology
NEOPLASTIC: OTHER- Mucinous cyst fluid with high-grade epithelial atypia.
Note: A mucinous etiology is established by cyst fluid CEA of 29,504 ng/mL and the high-grade mucinous epithelium. Background cellular necrosis is present. Invasive carcinoma is in the differential diagnosis.