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==Progress==
==Progress==
*Tuberculoma
*Tuberculoma
:* Single or multiple lesions of > 0.5 cm
:* May occur in primary or secundary TB
:* May occur in primary or secundary TB
:* Main finding on Chest X-ray in 5% cases of secondary TB<ref name="pmid3484866">{{cite journal| author=Woodring JH, Vandiviere HM, Fried AM, Dillon ML, Williams TD, Melvin IG| title=Update: the radiographic features of pulmonary tuberculosis. | journal=AJR Am J Roentgenol | year= 1986 | volume= 146 | issue= 3 | pages= 497-506 | pmid=3484866 | doi=10.2214/ajr.146.3.497 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=3484866  }} </ref>
:* Main finding on Chest X-ray in 5% cases of secondary TB<ref name="pmid3484866">{{cite journal| author=Woodring JH, Vandiviere HM, Fried AM, Dillon ML, Williams TD, Melvin IG| title=Update: the radiographic features of pulmonary tuberculosis. | journal=AJR Am J Roentgenol | year= 1986 | volume= 146 | issue= 3 | pages= 497-506 | pmid=3484866 | doi=10.2214/ajr.146.3.497 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=3484866  }} </ref>
:* Results from the surrounding of M. tuberculosis with inflammatory or connective tissue.<ref name="pmid8456658">{{cite journal| author=Lee KS, Song KS, Lim TH, Kim PN, Kim IY, Lee BH| title=Adult-onset pulmonary tuberculosis: findings on chest radiographs and CT scans. | journal=AJR Am J Roentgenol | year= 1993 | volume= 160 | issue= 4 | pages= 753-8 | pmid=8456658 | doi=10.2214/ajr.160.4.8456658 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8456658  }} </ref><ref name="pmid472765">{{cite journal| author=Palmer PE| title=Pulmonary tuberculosis--usual and unusual radiographic presentations. | journal=Semin Roentgenol | year= 1979 | volume= 14 | issue= 3 | pages= 204-43 | pmid=472765 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=472765  }} </ref><ref name="pmid3484866">{{cite journal| author=Woodring JH, Vandiviere HM, Fried AM, Dillon ML, Williams TD, Melvin IG| title=Update: the radiographic features of pulmonary tuberculosis. | journal=AJR Am J Roentgenol | year= 1986 | volume= 146 | issue= 3 | pages= 497-506 | pmid=3484866 | doi=10.2214/ajr.146.3.497 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=3484866  }} </ref>
:* Results from the surrounding of M. tuberculosis with inflammatory or connective tissue.<ref name="pmid8456658">{{cite journal| author=Lee KS, Song KS, Lim TH, Kim PN, Kim IY, Lee BH| title=Adult-onset pulmonary tuberculosis: findings on chest radiographs and CT scans. | journal=AJR Am J Roentgenol | year= 1993 | volume= 160 | issue= 4 | pages= 753-8 | pmid=8456658 | doi=10.2214/ajr.160.4.8456658 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8456658  }} </ref><ref name="pmid472765">{{cite journal| author=Palmer PE| title=Pulmonary tuberculosis--usual and unusual radiographic presentations. | journal=Semin Roentgenol | year= 1979 | volume= 14 | issue= 3 | pages= 204-43 | pmid=472765 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=472765  }} </ref><ref name="pmid3484866">{{cite journal| author=Woodring JH, Vandiviere HM, Fried AM, Dillon ML, Williams TD, Melvin IG| title=Update: the radiographic features of pulmonary tuberculosis. | journal=AJR Am J Roentgenol | year= 1986 | volume= 146 | issue= 3 | pages= 497-506 | pmid=3484866 | doi=10.2214/ajr.146.3.497 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=3484866  }} </ref>
:* The center of the tuberculoma is often necrotic  
:* The center of the tuberculoma is often necrotic  
:* Satellite lesions (80%)
:* Nodular or diffused calcifications in 20-30% cases<ref name="pmid8456658">{{cite journal| author=Lee KS, Song KS, Lim TH, Kim PN, Kim IY, Lee BH| title=Adult-onset pulmonary tuberculosis: findings on chest radiographs and CT scans. | journal=AJR Am J Roentgenol | year= 1993 | volume= 160 | issue= 4 | pages= 753-8 | pmid=8456658 | doi=10.2214/ajr.160.4.8456658 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8456658  }} </ref>




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Tuberculomas can be solitary or multiple and range in diameter from 0.5 to 4.0 cm or greater. Typically, they are smooth or sharply defined, although rarely the margin may be hazy or indis- tinct. Satellite lesions are seen in up to 80% of cases. Calcification is found in 20%–30% of tu- berculomas and is usually nodular and diffuse (12) (Fig 1).
Residual thin-walled cavities may be seen in both active and inactive disease. After antituber- culous chemotherapy, the tuberculous cavity may disappear; occasionally, the wall becomes paper-thin and an air-filled cystic space remains (8). Serial imaging helps determine the stability or activity of pulmonary disease. The wall of a chronic cavity varies from 1 cm to less than 1 mm in thickness and may be smooth, sometimes simulating an emphysematous bulla (Fig 2). It can be difficult to distinguish true cavities from bullae, cysts, or pneumatoceles (10).  
Residual thin-walled cavities may be seen in both active and inactive disease. After antituber- culous chemotherapy, the tuberculous cavity may disappear; occasionally, the wall becomes paper-thin and an air-filled cystic space remains (8). Serial imaging helps determine the stability or activity of pulmonary disease. The wall of a chronic cavity varies from 1 cm to less than 1 mm in thickness and may be smooth, sometimes simulating an emphysematous bulla (Fig 2). It can be difficult to distinguish true cavities from bullae, cysts, or pneumatoceles (10).  
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Revision as of 14:50, 12 September 2014

Progress

  • Tuberculoma
  • Single or multiple lesions of > 0.5 cm
  • May occur in primary or secundary TB
  • Main finding on Chest X-ray in 5% cases of secondary TB[1]
  • Results from the surrounding of M. tuberculosis with inflammatory or connective tissue.[2][3][1]
  • The center of the tuberculoma is often necrotic
  • Satellite lesions (80%)
  • Nodular or diffused calcifications in 20-30% cases[2]


Differential Diagnosis of Infectious Diarrhea

Acute inflammatory diarrhea may be caused by different pathogens. Bellow is a table describing some of these pathogens in terms of transmission and symptoms:[4][5]

Pathogen Transmission Clinical Manifestations
Fever Nausea/Vomiting Abdominal Pain Bloody Stool
Salmonella Foodborne transmission, community-acquired ++ + ++ +
Shigella Community-acquired, person-to-person ++ ++ ++ +
Campylobacter Community-acquired, ingestion of undercooked poultry ++ + ++ +
E. coli (EHEC or EIEC) Foodborne transmission, ingestion of undercooked hamburger meat ± + ++ ++
Clostridium difficile Nosocomial spread, antibiotic use + ± + +
Yersinia Community-aquired, foodborne transmission ++ + ++ +
Entamoeba histolytica Travel to or emigration from tropical regions + ± + ±
Aeromonas Ingestion of contaminated water ++ + ++ +
Plesiomonas Ingestion of contaminated water or undercooked shellfish, travel to tropical regions ± ++ + +

References

  1. ↑ 1.0 1.1 Woodring JH, Vandiviere HM, Fried AM, Dillon ML, Williams TD, Melvin IG (1986). "Update: the radiographic features of pulmonary tuberculosis". AJR Am J Roentgenol. 146 (3): 497–506. doi:10.2214/ajr.146.3.497. PMID 3484866.
  2. ↑ 2.0 2.1 Lee KS, Song KS, Lim TH, Kim PN, Kim IY, Lee BH (1993). "Adult-onset pulmonary tuberculosis: findings on chest radiographs and CT scans". AJR Am J Roentgenol. 160 (4): 753–8. doi:10.2214/ajr.160.4.8456658. PMID 8456658.
  3. ↑ Palmer PE (1979). "Pulmonary tuberculosis--usual and unusual radiographic presentations". Semin Roentgenol. 14 (3): 204–43. PMID 472765.
  4. ↑ Thielman NM, Guerrant RL (2004). "Clinical practice. Acute infectious diarrhea". N Engl J Med. 350 (1): 38–47. doi:10.1056/NEJMcp031534. PMID 14702426.
  5. ↑ Khan AM, Faruque AS, Hossain MS, Sattar S, Fuchs GJ, Salam MA (2004). "Plesiomonas shigelloides-associated diarrhoea in Bangladeshi children: a hospital-based surveillance study". J Trop Pediatr. 50 (6): 354–6. doi:10.1093/tropej/50.6.354. PMID 15537721.
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