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Hyalinizing Clear Cell Carcinoma in the Sphenoid Sinus
Toshiya Takamura1, Sho Koyasu1, Akihiko Sugimoto2
1From the Departments of Diagnostic Imaging and Nuclear Medicine.
Clinical Nuclear Medicine
|January 3, 2024
Summary
Hyalinizing clear cell carcinoma (HCCC) is a rare tumor. This case highlights its characteristic imaging findings on T2-weighted MRI and FDG PET/CT, aiding in diagnosis.
Area of Science:
- Oncology
- Radiology
- Pathology
Background:
- Hyalinizing clear cell carcinoma (HCCC) is a rare malignancy, recently reclassified in the WHO classification.
- Accurate diagnosis is crucial for appropriate patient management.
Observation:
- A 39-year-old male presented with headaches and a destructive mass identified via imaging.
- T2-weighted MRI showed mixed low and high signal intensities with a dark area.
- FDG PET/CT demonstrated intense, heterogeneous radiotracer uptake.
Findings:
- Biopsy confirmed EWSR1 rearrangement, leading to a diagnosis of HCCC.
- The study details the specific T2-weighted imaging and FDG PET/CT patterns observed in this HCCC case.
Implications:
- Recognizing these imaging features can improve the differential diagnosis of HCCC.
- This case contributes to understanding the radiological presentation of this rare tumor.
