Radiology Case Reports (Sep 2017)

Metachronous presentation of small-cell rectal carcinoma on an 18F-FDG PET/CT follow-up for follicular lymphoma

  • Yousuf Qaseem, BS,
  • Joanna Fair, MD, PhD,
  • Sanaz Behnia, MD,
  • Saeed Elojeimy, MD, PhD

DOI
https://doi.org/10.1016/j.radcr.2017.04.016
Journal volume & issue
Vol. 12, no. 3
pp. 632 – 634

Abstract

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We present a case of a 60-year-old woman with history of follicular lymphoma in remission presenting for an 18F-fluorodeoxyglucose positron emission tomography/computed tomography for suspected recurrence. Imaging showed widespread hypermetabolic lymphadenopathy consistent with lymphoma recurrence. A 3-month 18F-fluorodeoxyglucose positron emission tomography/computed tomography follow-up after chemotherapy showed resolution of hypermetabolic lymphadenopathy but multiple new hepatic lesions and a new subtle rectal lesion. Biopsies of both hepatic and rectal lesions revealed new diagnosis of metachronous high-grade small-cell carcinoma.

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