Sandbox JA: Difference between revisions
Jump to navigation
Jump to search
Joao Silva (talk | contribs) No edit summary |
Joao Silva (talk | contribs) No edit summary |
||
| Line 1: | Line 1: | ||
==Progress== | |||
*Tuberculoma | |||
:* 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> | |||
<!-- | |||
In postpri- mary tuberculosis, a tuberculoma is the main or only abnormality seen on chest radiographs in approximately 5% of patients (14). It is a round or oval granuloma caused by acid-fast bacilli with a wall lined by granulomatous inflammatory tis- sue or encapsulated by connective tissue (12–15). The central portion of the tuberculoma shows caseation necrosis. A healed, filled-in cavity and a rounded-off, contracted, healing tuberculous le- sion are the reported possible mechanisms of tu- berculoma formation (15). | |||
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). | |||
--> | |||
==Differential Diagnosis of Infectious Diarrhea== | ==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:<ref name="pmid14702426">{{cite journal| author=Thielman NM, Guerrant RL| title=Clinical practice. Acute infectious diarrhea. | journal=N Engl J Med | year= 2004 | volume= 350 | issue= 1 | pages= 38-47 | pmid=14702426 | doi=10.1056/NEJMcp031534 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=14702426 }} </ref><ref name="pmid15537721">{{cite journal| author=Khan AM, Faruque AS, Hossain MS, Sattar S, Fuchs GJ, Salam MA| title=Plesiomonas shigelloides-associated diarrhoea in Bangladeshi children: a hospital-based surveillance study. | journal=J Trop Pediatr | year= 2004 | volume= 50 | issue= 6 | pages= 354-6 | pmid=15537721 | doi=10.1093/tropej/50.6.354 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15537721 }} </ref> | Acute inflammatory diarrhea may be caused by different pathogens. Bellow is a table describing some of these pathogens in terms of transmission and symptoms:<ref name="pmid14702426">{{cite journal| author=Thielman NM, Guerrant RL| title=Clinical practice. Acute infectious diarrhea. | journal=N Engl J Med | year= 2004 | volume= 350 | issue= 1 | pages= 38-47 | pmid=14702426 | doi=10.1056/NEJMcp031534 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=14702426 }} </ref><ref name="pmid15537721">{{cite journal| author=Khan AM, Faruque AS, Hossain MS, Sattar S, Fuchs GJ, Salam MA| title=Plesiomonas shigelloides-associated diarrhoea in Bangladeshi children: a hospital-based surveillance study. | journal=J Trop Pediatr | year= 2004 | volume= 50 | issue= 6 | pages= 354-6 | pmid=15537721 | doi=10.1093/tropej/50.6.354 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15537721 }} </ref> | ||
Revision as of 14:38, 12 September 2014
Progress
- Tuberculoma
- May occur in primary or secundary TB
- Main finding on Chest X-ray in 5% cases of secondary TB[1]
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:[2][3]
| 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
- ↑ 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.
- ↑ Thielman NM, Guerrant RL (2004). "Clinical practice. Acute infectious diarrhea". N Engl J Med. 350 (1): 38–47. doi:10.1056/NEJMcp031534. PMID 14702426.
- ↑ 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.