Rheumatoid nodule

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

A rheumatoid nodule is a collection of normal cells including lymphocytes, and fibroblasts that surround a center of fibrinoid necrosis. They are usually subcutaneous especially over boney prominences such in the olecranon. About 5% of rheumatoid arthritis patients have such nodules within 2 years of disease onset, and the cumulative prevalence is about 25%.^[1]

Rheumatoid lung nodules

Rheumatoid lung nodules must be differentiated from other cavitary lung lesions.

Causes of lung cavities	Differentiating Features	Differentiating radiological findings	Diagnosis confirmation
Malignancy (Primary lung cancer)^[2]	Elderly male or female^[2] Chronic smokers Presents with a low-grade fever, absence of leukocytosis, systemic complaints weight loss, fatigue Absence of factors that predispose to gastric content aspiration, no response to antibiotics within 10 days Hemoptysis is commonly associated with bronchogenic carcinoma	A coin-shaped lesion with thick wall(>15mm) is seen on CXR with less ground glass opacities^[3] ^[4] Bronchoalveolar lavage cytology shows malignant cells	Biopsy of lung
Pulmonary Tuberculosis	Mostly in endemic areas Symptoms include productive cough, night sweats, fever, and weight loss	CXR and CT demonstrates cavities in the upper lobe of the lung	Sputum smear positive for acid-fast bacilli and nucleic acid amplification tests (NAAT) is used on sputum or any sterile fluid for rapid diagnosis and is positive for mycobacteria.
Necrotizing Pneumonia	Any age group Acute, fulminant life threating complication of prior infection >100.4 °F fever, with hemodynamic instability Worsening pneumonia-like symptoms	CXR demonstrates multiple cavitary lesions Pleural effusion and empyema are common findings	CBC is positive for causative organism
Loculated empyema	Children and elderly are at risk Pleuritic chest pain, dry cough, fever with chills Dullness to percussion decreased breath sounds, and reduced vocal resonance on examination	Empyema appears lenticular in shape and has a thin wall with smooth luminal margins	Thoracocentesis
Granulomatosis with polyangiitis (Wegener's)^[5]	Women are more commonly effected than man^[6] Kidneys are also involved Upper respiratory tract symptoms, perforation of nasal septum, chronic sinusitis, otitis media, mastoiditis. Lower respiratory tract symptoms (e.g. hemoptysis, cough, dyspnea) Renal symptoms, hematuria, red cell casts	Pulmonary nodules with cavities and infiltrates are a frequent manifestation on CXR	Positive for P-ANCA Biopsy of the tissue involved shows necrotizing granulomas^[5]
Rheumatoid nodule	Elderly females of 40-50 age group Manifestation of rheumatoid arthritis Presents with other systemic symptoms including symmetric arthritis of the small joints of the hands and feet with morning stiffness are common manifestations	Pulmonary nodules with cavitation are located in the upper lobe (Caplan syndrome) on X-ray	Positive for both rheumatoid factor and anticyclic citrullinated peptide antibody.
Sarcoidosis	More common in African-American females Often asymptomatic except for enlarged lymph nodes^[7] Associated with restrictive lung disease Erythema nodosum Lupus pernio (skin lesions on face resembling lupus) Bell palsy Epithelioid granulomas containing microscopic Schaumann and asteroid bodies	On CXR bilateral adenopathy and coarse reticular opacities are seen CT of the chest demonstrates extensive hilar and mediastinal adenopathy Additional findings on CT include fibrosis (honeycomb, linear, or associated with bronchial distortion), pleural thickening, and ground-glass opacities.^[8]	Biopsy of lung shows non-caseating granuloma
Bronchiolitis obliterans (Cryptogenic organizing pneumonia)^[9]^[10]	Rare condition and mimics asthma, pneumonia and emphysema It is caused by drug or toxin exposure, autoimmune diseases, viral infections, or radiation injury People working in industries are at high risk Presents with fever, cough, wheezing, and shortness of breath over weeks to months^[11]	Common appearance on CT is patchy consolidation,often accompanied by ground-glass opacities and nodules.^[12]	Biopsy of the lung^[10] Pulmonary function tests demonstrate low fev1/fvc
Langerhans cell Histiocytosis^[13]	Exclusively afflicts smokers, with a peak age of onset of between 20 and 40 years Clinical presentation varies, but symptoms generally include months of dry cough, fever, night sweats, and weight loss Skin is involved in 80% of the cases, scaly erythematous rash is typical	Thin-walled cystic cavities are the usual radiographic manifestation, observed in over 50% of patients by either CXR or CT scans.^[14]	Biopsy of the lung

References

↑ Carmona L, González-Alvaro I, Balsa A, Angel Belmonte M, Tena X, Sanmartí R (2003). "Rheumatoid arthritis in Spain: occurrence of extra-articular manifestations and estimates of disease severity". Ann. Rheum. Dis. 62 (9): 897–900. PMC 1754657. PMID 12922967. Unknown parameter |month= ignored (help).
↑ ^2.0 ^2.1 Chaudhuri MR (1973). "Primary pulmonary cavitating carcinomas". Thorax. 28 (3): 354–66. PMC 470041. PMID 4353362.
↑ Mouroux J, Padovani B, Elkaïm D, Richelme H (1996). "Should cavitated bronchopulmonary cancers be considered a separate entity?". Ann. Thorac. Surg. 61 (2): 530–2. doi:10.1016/0003-4975(95)00973-6. PMID 8572761.
↑ Onn A, Choe DH, Herbst RS, Correa AM, Munden RF, Truong MT, Vaporciyan AA, Isobe T, Gilcrease MZ, Marom EM (2005). "Tumor cavitation in stage I non-small cell lung cancer: epidermal growth factor receptor expression and prediction of poor outcome". Radiology. 237 (1): 342–7. doi:10.1148/radiol.2371041650. PMID 16183941.
↑ ^5.0 ^5.1 Langford CA, Hoffman GS (1999). "Rare diseases.3: Wegener's granulomatosis". Thorax. 54 (7): 629–37. PMC 1745525. PMID 10377211.
↑ Lee KS, Kim TS, Fujimoto K, Moriya H, Watanabe H, Tateishi U, Ashizawa K, Johkoh T, Kim EA, Kwon OJ (2003). "Thoracic manifestation of Wegener's granulomatosis: CT findings in 30 patients". Eur Radiol. 13 (1): 43–51. doi:10.1007/s00330-002-1422-2. PMID 12541109.
↑ Baughman RP, Teirstein AS, Judson MA, Rossman MD, Yeager H, Bresnitz EA, DePalo L, Hunninghake G, Iannuzzi MC, Johns CJ, McLennan G, Moller DR, Newman LS, Rabin DL, Rose C, Rybicki B, Weinberger SE, Terrin ML, Knatterud GL, Cherniak R (2001). "Clinical characteristics of patients in a case control study of sarcoidosis". Am. J. Respir. Crit. Care Med. 164 (10 Pt 1): 1885–9. doi:10.1164/ajrccm.164.10.2104046. PMID 11734441.
↑ Brauner MW, Grenier P, Mompoint D, Lenoir S, de Crémoux H (1989). "Pulmonary sarcoidosis: evaluation with high-resolution CT". Radiology. 172 (2): 467–71. doi:10.1148/radiology.172.2.2748828. PMID 2748828.
↑ Murphy J, Schnyder P, Herold C, Flower C (1998). "Bronchiolitis obliterans organising pneumonia simulating bronchial carcinoma". Eur Radiol. 8 (7): 1165–9. doi:10.1007/s003300050527. PMID 9724431.
↑ ^10.0 ^10.1 Al-Ghanem S, Al-Jahdali H, Bamefleh H, Khan AN (2008). "Bronchiolitis obliterans organizing pneumonia: pathogenesis, clinical features, imaging and therapy review". Ann Thorac Med. 3 (2): 67–75. doi:10.4103/1817-1737.39641. PMC 2700454. PMID 19561910.
↑ Cordier JF, Loire R, Brune J (1989). "Idiopathic bronchiolitis obliterans organizing pneumonia. Definition of characteristic clinical profiles in a series of 16 patients". Chest. 96 (5): 999–1004. PMID 2805873.
↑ Lee KS, Kullnig P, Hartman TE, Müller NL (1994). "Cryptogenic organizing pneumonia: CT findings in 43 patients". AJR Am J Roentgenol. 162 (3): 543–6. doi:10.2214/ajr.162.3.8109493. PMID 8109493.
↑ Suri HS, Yi ES, Nowakowski GS, Vassallo R (2012). "Pulmonary langerhans cell histiocytosis". Orphanet J Rare Dis. 7: 16. doi:10.1186/1750-1172-7-16. PMC 3342091. PMID 22429393.
↑ Moore AD, Godwin JD, Müller NL, Naidich DP, Hammar SP, Buschman DL, Takasugi JE, de Carvalho CR (1989). "Pulmonary histiocytosis X: comparison of radiographic and CT findings". Radiology. 172 (1): 249–54. doi:10.1148/radiology.172.1.2787035. PMID 2787035.

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[1] Carmona L, González-Alvaro I, Balsa A, Angel Belmonte M, Tena X, Sanmartí R (2003). "Rheumatoid arthritis in Spain: occurrence of extra-articular manifestations and estimates of disease severity". Ann. Rheum. Dis. 62 (9): 897–900. PMC 1754657. PMID 12922967. Unknown parameter |month= ignored (help).

[pmid4353362-2] 2.0 ^2.1 Chaudhuri MR (1973). "Primary pulmonary cavitating carcinomas". Thorax. 28 (3): 354–66. PMC 470041. PMID 4353362.

[pmid8572761-3] Mouroux J, Padovani B, Elkaïm D, Richelme H (1996). "Should cavitated bronchopulmonary cancers be considered a separate entity?". Ann. Thorac. Surg. 61 (2): 530–2. doi:10.1016/0003-4975(95)00973-6. PMID 8572761.

[pmid16183941-4] Onn A, Choe DH, Herbst RS, Correa AM, Munden RF, Truong MT, Vaporciyan AA, Isobe T, Gilcrease MZ, Marom EM (2005). "Tumor cavitation in stage I non-small cell lung cancer: epidermal growth factor receptor expression and prediction of poor outcome". Radiology. 237 (1): 342–7. doi:10.1148/radiol.2371041650. PMID 16183941.

[pmid10377211-5] 5.0 ^5.1 Langford CA, Hoffman GS (1999). "Rare diseases.3: Wegener's granulomatosis". Thorax. 54 (7): 629–37. PMC 1745525. PMID 10377211.

[pmid12541109-6] Lee KS, Kim TS, Fujimoto K, Moriya H, Watanabe H, Tateishi U, Ashizawa K, Johkoh T, Kim EA, Kwon OJ (2003). "Thoracic manifestation of Wegener's granulomatosis: CT findings in 30 patients". Eur Radiol. 13 (1): 43–51. doi:10.1007/s00330-002-1422-2. PMID 12541109.

[pmid11734441-7] Baughman RP, Teirstein AS, Judson MA, Rossman MD, Yeager H, Bresnitz EA, DePalo L, Hunninghake G, Iannuzzi MC, Johns CJ, McLennan G, Moller DR, Newman LS, Rabin DL, Rose C, Rybicki B, Weinberger SE, Terrin ML, Knatterud GL, Cherniak R (2001). "Clinical characteristics of patients in a case control study of sarcoidosis". Am. J. Respir. Crit. Care Med. 164 (10 Pt 1): 1885–9. doi:10.1164/ajrccm.164.10.2104046. PMID 11734441.

[pmid2748828-8] Brauner MW, Grenier P, Mompoint D, Lenoir S, de Crémoux H (1989). "Pulmonary sarcoidosis: evaluation with high-resolution CT". Radiology. 172 (2): 467–71. doi:10.1148/radiology.172.2.2748828. PMID 2748828.

[pmid9724431-9] Murphy J, Schnyder P, Herold C, Flower C (1998). "Bronchiolitis obliterans organising pneumonia simulating bronchial carcinoma". Eur Radiol. 8 (7): 1165–9. doi:10.1007/s003300050527. PMID 9724431.

[pmid19561910-10] 10.0 ^10.1 Al-Ghanem S, Al-Jahdali H, Bamefleh H, Khan AN (2008). "Bronchiolitis obliterans organizing pneumonia: pathogenesis, clinical features, imaging and therapy review". Ann Thorac Med. 3 (2): 67–75. doi:10.4103/1817-1737.39641. PMC 2700454. PMID 19561910.

[pmid2805873-11] Cordier JF, Loire R, Brune J (1989). "Idiopathic bronchiolitis obliterans organizing pneumonia. Definition of characteristic clinical profiles in a series of 16 patients". Chest. 96 (5): 999–1004. PMID 2805873.

[pmid8109493-12] Lee KS, Kullnig P, Hartman TE, Müller NL (1994). "Cryptogenic organizing pneumonia: CT findings in 43 patients". AJR Am J Roentgenol. 162 (3): 543–6. doi:10.2214/ajr.162.3.8109493. PMID 8109493.

[pmid22429393-13] Suri HS, Yi ES, Nowakowski GS, Vassallo R (2012). "Pulmonary langerhans cell histiocytosis". Orphanet J Rare Dis. 7: 16. doi:10.1186/1750-1172-7-16. PMC 3342091. PMID 22429393.

[pmid2787035-14] Moore AD, Godwin JD, Müller NL, Naidich DP, Hammar SP, Buschman DL, Takasugi JE, de Carvalho CR (1989). "Pulmonary histiocytosis X: comparison of radiographic and CT findings". Radiology. 172 (1): 249–54. doi:10.1148/radiology.172.1.2787035. PMID 2787035.

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Rheumatoid nodule

Rheumatoid lung nodules

References

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