Advantages of additional PET vs. MRI in the clinical diagnosis of anterior mediastinal tumors.

The present study retrospectively examined the diagnostic utility of adding positron emission tomography (PET) or magnetic resonance imaging (MRI) to computed tomography (CT) alone for preoperative diagnosis of anterior mediastinal tumors. A total of 104 consecutive patients who had undergone surgical resection of anterior mediastinal tumors were divided into two groups: Additional PET to another modality and no additional PET to another modality, and further subdivided into three groups: CT alone, additional MRI to CT and additional PET to CT. The sensitivity, specificity, and accuracy for diagnosing malignant tumors in each subgroup was calculated.

Proton magnetic resonance spectroscopy of lung cancer .

Proton magnetic resonance spectroscopy (H-MRS) has demonstrated that , lung cancer has higher lactate and choline signals than those of normal tissues. The detection of these metabolites in lung cancer by H-MRS would be useful for clinical diagnoses of lung cancer. We report the detection of lactate and choline in lung cancer by H-MRS in a 41-year-old Asian man who was diagnosed with pT4N0M0 ⅢA stage, right upper lobe lung adenocarcinoma.

Optimal timing for the resection of pulmonary metastases in patients with colorectal cancer.

This study aims to clarify the surgical treatment time of pulmonary metastasis in patients with colorectal cancer.Early relapse after resection of pulmonary metastasis is often encountered when the interval from the detection of pulmonary metastasis to pulmonary metastasectomy was short.In this retrospective analysis, data of patients with colorectal cancer who underwent surgical treatment of pulmonary metastasis at the Gunma Prefectural Cancer Center, Gunma, from April 2001 through September 2018 were evaluated.