ALK-positive Histiocytosis Mimicking Colon Cancer on 18 F-FDG PET/CT.
case_report · Level V
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- Record sourced from PubMed, PMID 40309986.
- Also identified by DOI 10.1097/RLU.0000000000005880.
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Abstract
As a subtype of histiocytic neoplasm, ALK-positive histiocytosis is rare, especially with colorectal involvement. We herein describe 18 F-FDG PET/CT findings of ALK-positive histiocytosis with colon involvement in a 33-year-old man. The PET/CT scan demonstrated intense FDG uptake in the colonic lesion, along with multiple hypermetabolic lymph nodes. The colon cancer with lymph node metastases was initially suspected; however, the final pathological findings confirmed the diagnosis of ALK-positive histiocytosis.
Medical subject headings
- Colonic Neoplasms
- Fluorodeoxyglucose F18
- Histiocytosis
- Positron Emission Tomography Computed Tomography
- Receptor Protein-Tyrosine Kinases
- Tomography, X-Ray Computed
- Positron-Emission Tomography