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Colorectal Metastasis from Ovarian Neoplasm Mimicking Primary Colon Cancer.
Anum Aqsa1, Sami Droubi1, Shivantha Amarnath1
1Department of Internal Medicine, Staten Island University Hospital, New York, New York, USA.
Case Reports in Gastroenterology
|February 22, 2021
Summary
Metastasis to the colon from ovarian cancer is rare, especially intraluminal. This case highlights the importance of considering secondary metastasis in patients with a prior cancer history.
Area of Science:
- Gastroenterology
- Oncology
- Pathology
Background:
- Metastasis to the colon from other internal malignancies is uncommon.
- Colonoscopy is the primary diagnostic tool for colonic intraluminal masses.
- Differentiating primary colorectal cancer from metastatic disease requires pathological examination, including immunohistochemistry.
Observation:
- A 53-year-old female, previously treated for ovarian papillary serous neoplasm, presented with a rectosigmoid mass.
- The mass appeared as a single, intraluminal, ulcerative lesion, mimicking primary colon cancer.
- Biopsy results confirmed the mass was metastatic from the patient's ovarian carcinoma.
Findings:
- This case represents a rare instance of ovarian cancer metastasizing intraluminally to the colon.
- The presentation mimicked primary colorectal malignancy, underscoring diagnostic challenges.
- Immunohistochemical staining was crucial in identifying the metastatic origin.
Implications:
- Clinicians should consider metastatic disease in patients with a history of internal malignancy presenting with colonic lesions.
- The findings emphasize the importance of a thorough patient history in diagnosing colonic masses.
- This case contributes to the understanding of rare metastatic patterns of ovarian cancer.
