Showing posts with label pathology. Show all posts
Showing posts with label pathology. Show all posts

Wednesday, March 17, 2010

-Vircow's triad.


Vircow's triad is the aetiology of thrombosis which is composed of :-

1-Damage of vascular endothelium(Vascular trauma):-
this damage expose the endothelial collagen which is rough surface to which platelets can stick firmly and release thromboxane A2 that help more platelet aggregation.

2-Slowing(Reduced)in the blood flow (stasis):-
these changes help thrombosis by allowing the platelets to deviate from the axial stream and cross the peripheral plasmatic zone to stick to the vascular endothelium.

3-Change in blood composition(Increased coagulability ):-
a-Increase number of blood elements.
-Increase platelets so become more sticky and agglutinate in small masses and adhere to vascular endothelium.
-Increase WBCs and RBCs increase viscosity of blood and stasis.
b-Biochemical changes that cause systemic activation of the cloting system.

"VIR chow"

Vascular trauma
Increased coagulability
Reduced blood flow (stasis)

Dr Ibrahim

Return to other triads here.

Friday, October 23, 2009

- Medical syndromes.

Medical syndrome is defined as :-
A group of symptoms and signs that collectively indicate or characterize a disease, psychological disorder, or other abnormal condition.
There are a lot of medical syndromes and we try to list some of them:-
1-Down syndrome (click here).
2-Plummer-Vinson syndrome (click here).
3-Ramsay Hunt syndrome (click here).
4-Wolf-Hirschhorn Syndrome (click here).
5-Cri-du-chat syndrome (click here).
6-YY syndrome (click here).
7-Klinefelter's syndrome (click here).
8-Turner's syndrome (click here).
9- Fanconi syndrome (click here).
10-Abderhalden-Kaufmann-Lignac syndrome (click here) .
11-Light Wood-Albright syndrome(Lightwood syndrome)(click here).
12-Oculo-cerebro-renal Syndrome (click here).
13-Metabolic syndrome (click here).
14-Pickwickian syndrome (click here).
15- Kallmann syndrome (click here).
16-Sertoli-cell-only syndrome (click here).
17-Lambert-Eaton syndrome (click here).
18-Guillain Barré syndrome (click here).
19-Horner's syndrome (click here).
20-Brown-Séquard syndrome. (click here).
21-Carpal tunnel syndrome. (click here).
22-Sjögren's syndrome (click here).
23-Felty's syndrome (click here).
24-Caplan's syndrome (click here).
25-Congenital Rubella Syndrome  (click here).
26-Caroli's syndrome.  (click here).
27-Malabsorption syndrome.  (click here).
28-Duhin-Johnson syndrome.  (click here).
29-Exploding head syndrome. (click here). 
If you have other syndromes plz tell us...
Dr Ibrahim,,

Tuesday, February 3, 2009

-Dangerous area of the face.

Dangerous area of the face

- It is the area () the root of  the nose and 2 angles of the mouth.
- The veins in this region are connected to cavernous sinus so any infection in this area may lead to cavernous sinus thrombosis.

- Venous draingae of Dangerous area:-

  • Antearior and  post etmoidal veins drain to opthalmic vein.
  • sphenopalatine & greater palatine veins drain to pterygoid veins.
  • Angular vein,lateral nasal and superior labial veins drain to facial vein...
- All of the above veins drain finally to cavernous sinus.




So, Donnot put your finger in your nose..:)

See you,
Dr Ibrahim...

Monday, July 7, 2008

- pathology mnemonics (1)




Thrombus: possible fates

DOPE:-
  • Dissolution
  • Organization and repair
  • Propagation
  • Embolization


Atherosclerosis risk factors

SAD BET (الرهان الحزين)

Sex: male
Age: middle-aged, elderly
Diabetes mellitus

BP high: hypertension
Elevated cholesterol(bad cholesterol LDL)
Tobacco (smoking)


Dr Ibrahim

Friday, May 16, 2008

- Intussusception of the intestine.

Intussusception of the intestine

Def: Invagination of proximal segment of the intestine into distal one.

According to the direction of the intestinal wave from proximal to distal.



-The proximal part  is called the intussusceptum.

-The distal part that receives it is called the intussuscipiens.
 

see you,

Dr Ibrahim.

Thursday, May 15, 2008

-Shape of infarction.

- usually All infarcts tend to be pyramidal or wedge shaped.

- Why?

Due to distribute of the branches of arteries which

distribute in an area of pyramid

so when the infarction occur the base

become at the surface & apex become at the site

of occluded artery,see the figure...


see you,

Dr Ibrahim.