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| {{CMG}}; {{AE}} {{Preeti}} | | {{CMG}}; {{AE}} {{Preeti}} |
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| ! colspan="3" rowspan="2" |
| | ==References== |
| ! rowspan="2" |Pathophysiology
| | {{Reflist|2}} |
| ! rowspan="2" |Symptoms
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| ! rowspan="2" |History
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| ! rowspan="2" |Physical Examination
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| ! colspan="3" |Laboratory Findings
| | [[Category: (name of the system)]] |
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| !Immunochemistry
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| !Blood work
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| !Biospy/CT/CXR
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| | rowspan="10" |'''Infections'''
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| | rowspan="4" |'''Bacterial'''
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| | rowspan="2" |'''Syphilis'''
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| | rowspan="2" |'''Brucellosis'''
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| | rowspan="4" |'''Viral'''
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| |'''infectious mononucleosis'''
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| |'''cytomegalovirus'''
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| |'''human immunodeficiency virus'''
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| |'''cat scratch fever'''
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| |'''Mycobacterial'''
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| |'''tuberculosis'''
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| * Mostly in endemic areas
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| * Symptoms include [[productive cough]],[[night sweats]], [[fever]] and [[weight loss]]
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| * [[Sputum]] smear positive for [[acid-fast bacilli]]<nowiki/>and nucleic acid amplification tests (NAAT) is used on sputum or any sterile fluid for rapid diagnosis and is positive for mycobacteria.
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| * CXR and CT demonstrates [[Internal|cavities]] in the upper lobe of the lung
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| |'''Parasitic'''
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| |'''toxoplasmosis'''
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| | rowspan="4" |'''Autoimmune'''
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| | colspan="2" |'''Systemic lupus erythematosus'''
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| | colspan="2" |'''Sjögren's syndrome'''
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| | colspan="2" |'''Hydantoin derivatives'''
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| | colspan="2" |'''Sarcoidosis'''
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| * More common in African-American females
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| * Often [[asymptomatic]] except for [[Lymphadenopathy|enlarged lymph nodes]]
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| * Associated with [[restrictive lung disease]]
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| * [[Erythema nodosum]]
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| * [[Lupus pernio]] (skin lesions on face resembling lupus)
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| * [[Bell's palsy|Bell palsy]]
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| * [[Epithelioid]] [[granuloma]]<nowiki/>s containing microscopic [[Schaumann bodies|Schaumann]] and asteroid bodies
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| * On CXR bilateral [[Lymphadenopathy|adenopathy]] and coarse reticular opacities are seen.
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| * CT of the chest demonstrates extensive [[Hilar lymphadenopathy|hilar]] and mediastinal adenopathy
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| * Additional findings on CT include [[fibrosis]] (honeycomb, linear, or associated with bronchial distortion), pleural thickening, and ground-glass opacities.
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| * Biopsy of lung shows non-[[caseating]][[granuloma]]
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| | rowspan="6" |'''Neoplasms'''
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| | colspan="2" rowspan="1" |'''Hodgkin's disease'''
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| | colspan="2" rowspan="1" |'''Chronic lymphocytic leukemia'''
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| | colspan="2" rowspan="1" |'''Small cell carcinoma of the lung'''
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| | colspan="2" rowspan="1" |'''Malignant histiocytosis'''
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| | colspan="2" rowspan="1" |'''Melanoma'''
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| | colspan="2" rowspan="1" |'''Germ cell neoplasms'''
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| | rowspan="5" |'''Other conditions'''
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| | colspan="2" rowspan="1" |'''Reactive lymphoid hyperplasia'''
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| | colspan="2" rowspan="1" |'''Lymphomatoid granulomatosis'''
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| | colspan="2" rowspan="1" |'''Dermatopathic lymphadenopathy'''
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| | colspan="2" rowspan="1" |'''Angioimmunoblastic lymphadenopathy'''
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| | colspan="2" rowspan="1" |'''Giant lymph node hyperplasia (Castleman disease)'''
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| |}
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