18F-FDG PET/CT Assessment of Malignant Granular Cell Tumor of the Soft Tissue.

Malignant granular cell tumor variant is rare and even more if lower extremities are involved. We present a rare case with images of 18F-FDG PET/CT showing 2 hypermetabolic lesions on the right tight with an elevated SUVmax value of 7.50 and 2 adenopathies with an SUVmax almost as high as the lesions.

Bone marrow trephine biopsy in Hodgkin's lymphoma. Comparison with PET-CT scan in 65 patients.

Background And Objectives: To compare bone marrow biopsy (BMB) and PET/CT in detecting bone marrow involvement in Hodgkin's lymphoma MATERIAL AND METHODS: Retrospective analysis of 65 patients with both tests in the initial staging or in relapse with special attention to the PET/CT uptake pattern.

Results: In 3 patients (4.6%), the BMB showed bone marrow involvement with the PET/CT being positive in them all: 2 with diffuse+multifocal pattern and one diffuse only.

Fluorine-18 fluorodeoxyglucose PET in the preoperative staging of colorectal cancer.

Introduction: In patients with colorectal cancer (CC), preoperative evaluation and staging should focus on techniques that might alter the preoperative or intraoperative surgical plan. Conventional imaging methods (CT, MRI) have low accuracy for identifying the depth of tumour infiltration and have limited ability to detect regional lymph node involvement. The aim of this study was to evaluate the utility of FDG-PET in the initial staging of patients with CC in comparison with conventional staging methods and to determine its impact on therapeutic management.