Results: Histologic examination of the surgical specimen revealed a tubulovillous adenoma with low-grade dysplasia. The submucosa showed numerous aggregates of large cells containing a heavy black pigmentation. Special histologic stains were inconsistent with melanin or iron. This submucosal cellular infiltration was linked to the preoperative use of India ink when the notion of tattooing was "kindly" provided by the surgeon! Conclusion: Despite a striking and misleading appearance, the microscopic finding of such phenomenon does not represent a pathologic state. Nevertheless, communication between enterologists, surgeons and pathologists are mandatory to assure prompt recognition and avoid unnecessary investigations. Objective: Gastritis cystica polyposa is a unique lesion found on occasion at the stoma of a gastrojejunal anastomosis. However, GCP is rarely found in an unoperated stomach. Method: A 51-year-old woman with abdominal discomfort and vomiting. Physical examination, routine hematological examination and biochemical tests were within normal limits, exept mild anemia.