Minute pulmonary meningothelial-like nodules (MPMNs) are usually unique lesions in the lung parenchyma. Diffuse pulmonary meningotheliomatosis, which is presented as multiple MPMNs, has been less frequently described. MPMNs are mainly asymptomatic and are diagnosed after lung surgery or during autopsy. We report on a patient with multiple and bilateral pulmonary nodules, some of which were cavi...

Bronchoalveolar lavage (BAL) is a relatively new technique for assessment of the alveolar compartment of the lung. Its current clinical applications are the initial assessment of acute and chronic diffuse interstitial lung disease and the diagnosis of pulmonary infections, especially in the immunocompromised host. In addition, BAL provides information on the pathophysiology of diffuse interstit...

BACKGROUND/AIMS Benign colon (18)F-fluorodeoxyglucose (FDG) uptake is frequently observed in asymptomatic individuals. Aims of this study were to investigate the benign colon uptake by whole body FDG-positron emission tomography (PET) in asymptomatic adults and to correlate those results with colonoscopic and histologic findings. METHODS Among 3,540 subjects who had undergone FDG-PET, 43 subj...

BACKGROUND Insufficient information exists on the prognostic factors of papillary thyroid cancer (PTC) with chest metastases, which is detected only using a radioactive iodide (131I) whole body scan (WBS) but could not be detected using radiographic findings. The aim of this study was to analyze the clinical features and treatment results of patients with PTC. METHODS This retrospective study...

Metastatic pulmonary calcification is a complication of patients with renal failure [1], but is rarely seen after successful renal transplantation. A 51-year-old Japanese male demonstrated progression of diffuse pulmonary ground-glass attenuations over time. He had been treated with oral corticosteroids and immunosuppressants since undergoing left renal transplantation from his mother at 26 yea...

In this topic, we will deal with conditions that tend to 1) involve both the lungs diffusely, and 2) primarily produce abnormalities of the pulmonary parenchyma (as opposed to the airways and blood vessels, which are dealt with elsewhere). All diseases may be classified by anatomic, physiologic, and clinical schemes. In pathology, we tend to work from anatomic classifications in understanding t...

1. Universidade Federal Fluminense, Niterói, Brasil. 2. Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil. 3. Faculdade de Medicina de Petrópolis, Petrópolis, Brasil. 4. Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brasil. 5. Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brasil. The patient basically had diffuse lung cysts on HRCT examination...

Diffuse parenchymal lung disease (DPLD) is a group of diseases that have the common characteristic of involving the pulmonary parenchyma diffusely. The pulmonary parenchyma consists of all structures distal to the terminal bronchiole. DPLD are numerous, there are some 150 different entities that qualify for the group. Most of these diseases are diagnosed according to common algorithm, but the e...

A 68 years old man with prostate carcinoma was referred for 68Ga-PSMA PET/CT scan because of recent significant rise of PSA. He complained of muscle weakness and fatigue, since 3 weeks before the scan, without dyspnea or shortness of breath. In his 68Ga-PSMA-611 PET/CT study, widespread skeletal metastasis, as well as liver involvement were noticed. Also, multiple bilatera...