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JK Amorosa. Sarcoidosis Flop. Sarcoidosis , where does the name come from?. Sarc: flesh Oid : like Flesh-like Besnier-Boeck-Schauman Disease. Sarcoidosis–symptoms & findings. Asymptomatic Fatigue Weight loss Aches-pains Arthritis Dry eyes SOB Erythema nodosum Enlarged lymph nodes.
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JK Amorosa Sarcoidosis Flop
Sarcoidosis, where does the name come from? • Sarc: flesh • Oid : like • Flesh-like • Besnier-Boeck-Schauman Disease
Sarcoidosis–symptoms & findings • Asymptomatic • Fatigue • Weight loss • Aches-pains • Arthritis • Dry eyes • SOB • Erythemanodosum • Enlarged lymph nodes • Rashes • Erythemanodosum • Hepatomegaly • Arrythmias • Anemia • Nerve palsy • Parotid enlargement • Abnormal Vitamin D regulation
Sarcoidosis - pathology • Chronic inflammatory cells: monocytes, macrophages, activated T-lymphocytes form granulomas • Systemic inflammatory disease
Lofgren Syndrome – good prognosis • Bilateral adenopathy • Erythema nodosum • Arthralgia
Imaging Summary • Initial imaging for the diagnosis of sarcoidosis is Chest X-Ray. • HRCT can provide better resolution of lung findings • Radiographic Stages of disease progression • Stage 0: Normal CXR • Stage 1: bilateral hilar/mediastinal adenopathy • Stage 2: bilateral hilar /med adenopathy and pulmonary opacities • Stage 3: Diffuse pulmonary opacities alone • Stage 4: Diffuse pulmonary fibrosis
Paradoxical effect on inflammatory process – ANERGY ? related to increased risk of cancer and infections • HYPER Increase inflammation because of increased macrophages, CD4 helper T cell activation • HYPO Immune response to antigen challenges such as tuberculin is decreased
What is Schauman body? • Calcium and protein inclusions in Langhans giant cell in a granuloma
Imaging characteristics • Normal • Symmetrical smooth bilateral hilar and mediastinal adenopathy • Lung, early stages: perifissural, peribronchial nodules, miliary nodules, patchy focal opacities • Lung, late stages: distortion, atelectasis, cavities, bronchiectasis
Bilateral hilar and mediastinal adenopathy,Stage II, Ddx: • Lymphoma • Small cell ca lung • TB
Small cell ca with mediastinaladenopathy and pericardial mets
Imaging Findings • Bilateral • Peripheral, subpleural/peri- bronchovascular, mid and lower lung zone • Basal patches of consolidation • migratory
HRCT • Consolidation • GG • Nodules • Reticular pattern • Bronchial wall thickening and/or dilitation • SPN • Perilobular pattern • Reverse halo • Honeycomb
Lung, stage IV Ddx: • Complicated silicosis • Radiation fibrosis
66 Calcified hilar nodes, atelectatic, bronchiectatic lung changes