Elderly-onset pulmonary sarcoidosis: A radiological approach to diagnosis.

BACKGROUND AND AIM: The aim was to compare the radiological and clinical characteristics of sarcoidosis between elderly and non-elderly patients. METHODS: This retrospective observational study was carried out in patients with sarcoidosis. Elderly-onset sarcoidosis was defined as sarcoidosis diagnosed in patients ≥65 years-old. Patients were stratified by age (≥65 years versus <65 years) and radiological and clinical data were compared between age groups. RESULTS: Of the 163 patients, 38 (23.3%) were in the elderly group and 125 (76.7%) were in the non-elderly group. Elderly patients more frequently demonstrated arthralgia (50% vs. 12.8%, p<0.001), coronary artery disease  (15.8% vs. 2.4%, p=0.005), congestive heart failure (13.2% vs. 0.8%, p=0.003), pneumonia (7.9% vs. 0.8%, p=0.04), and pleural fluid (18.4% vs. 0.0%, p<0.001). Clinical remission was significantly more likely in younger patients than in the elderly (76.8% vs. 55.3%, p=0.01). The clinical course to chronic-progressive disease was similar in both groups (p=0.635). Radiologically, lymph nodes measuring 10-25 mm in the short axis (89.5% vs. 72.6%, p=0.032), usual interstitial pneumonia pattern (10.5% vs. 0.8%, p=0.011), and main pulmonary artery diameter above 30 mm (34.2% vs. 16.0%, p=0.014) were significantly more frequent in the elderly group. Elderly patients tended to demonstrate Scadding stage I and II sarcoidosis (39.5% and 31.6%). CONCLUSIONS: Presentation of elderly-onset sarcoidosis appears to differ from young-onset sarcoidosis. Radiologically, lymph node enlargement and the pattern of fibrosis may be distinctive.

Impact of COVID-19 pneumonia on interstitial lung disease: semi-quantitative evaluation with computed tomography.

OBJECTIVES: To evaluate the CT scores and fibrotic pattern changes in interstitial lung disease (ILD) patients, with and without previous COVID-19 pneumonia. METHODS: Patients with ILD (idiopathic pulmonary fibrosis (IPF) and connective tissue disease-associated ILD (CTD-ILD)) were retrospectively enrolled in the study which consisted of patients who had COVID-19 pneumonia while the control group had not. All patients had two CT scans, initial and follow-up, which were evaluated semi-quantitatively for severity, extent, and total CT scores, fibrosis patterns, and traction bronchiectasis. RESULTS: A total of 102 patients (pneumonia group n = 48; control group n = 54) were enrolled in the study. For both groups, baseline characteristics were similar and CT scores were increased. While there was a 4.5 ± 4.6 point change in the total CT score of the COVID-19 group, there was a 1.2 ± 2.7 point change in the control group (p < 0.001). In the IPF subgroup, the change in total CT score was 7.0 points (95% CI: 4.1 to 9.9) in the COVID-19 group and 2.1 points (95% CI: 0.8 to 3.4) in the control group. Seven patients (14.6%) in the COVID-19 group progressed to a higher fibrosis pattern, but none in the control group. CONCLUSIONS: Semi-quantitative chest CT scores in ILD patients demonstrated a significant increase after having COVID-19 pneumonia compared to ILD patients who had not had COVID-19 pneumonia. The increase in CT scores was more prominent in the IPF subgroup. There was also a worsening in the fibrosis pattern in the COVID-19 group. KEY POINTS: • The impact of COVID-19 pneumonia on existing interstitial lung diseases and fibrosis is unclear. • COVID-19 pneumonia may worsen existing interstitial lung involvement with direct lung damage and indirect inflammatory effect. • COVID-19 pneumonia may affect existing lung fibrosis by triggering inflammatory pathways.

Incidental Uptake of 68Ga-DOTATATE Gastrointestinal Stromal Tumor of Duodenum.

ABSTRACT: A 56-year-old man underwent 68Ga-DOTATATE PET/CT with suspicion of a pancreatic neuroendocrine tumor. However, in this imaging, a mass with 68Ga-DOTATATE uptake was observed not in pancreas but in the duodenojejunal junction. Abdominal tomography confirmed that the heterogeneously enhanced mass was originated from duodenum. The patient was operated, and the histopathology result was evaluated as low-risk gastrointestinal stromal tumor. Although there was low or no specific binding to gastrointestinal stromal tumor cells for all 68Ga-labeled DOTA peptides, uptake of 68Ga-DOTATATE was observed incidentally in this case.

Bronchial Artery Embolization, an Increasingly Used Method for Hemoptysis; Treatment and Avoidance.

OBJECTIVES: Hemoptysis is an alarming symptom. It may cause some severe life-threatening complications. Hypertrophic and fragile bronchial artery causes hemoptysis and occurs mostly in bronchiectasis, sarcoidosis, active or sequelae tuberculosis, aspergilloma, lung cancer or cystic fibrosis. Bronchial artery embolization is one of the angiographic methods used in diagnosis and treatment for years performed by radiologists. Hemoptysis is used mostly in patients with hemoptysis. Using this method, surgical management with high mortality and morbidity rates can be avoided or better conditions for surgery can be provided via stopping hemorrhage before surgery. We aim to share the experiences of our hospital about patients who underwent bronchial artery embolization and compare our results with the literature. METHODS: Thirty-nine patients (29 male, 10 female) underwent angiography-aiming embolization. Pathologies were hemoptysis in 37 patients, Castleman disease in two patients. Embolization was performed in 33 patients; 31 for hemoptysis, two for Castleman disease. Bilateral embolization was performed in six patients. RESULTS: Computed tomography (CT) was helpful in diagnosing the side of bleeding in 91.8% of the patients with hemoptysis. Bronchoscopy was diagnostic in 53% of patients. Polyvinyl alcohol (n=27) was mostly used for embolization. Hemoptysis recurred in six patients (19.3%). All were managed successfully, of four with re-embolization. One major complication, transient blindness, was observed. CONCLUSION: Bronchial artery embolization is minimally invasive, more tolerable compared to surgery can be managed with high success and lower complication rates, especially hemoptysis and in some other situations. It provides time for evaluating the underlying disease and delaying surgery for elective conditions. That is why this method has been used increasingly.