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Lara MD
Keloid Scars
Scars are formed by the collagen produced by fibroblasts in the area of the injury. Initially scars may have a raised or bumpy appearance, but over time tend to diminish in size and flatten. Sometimes, however, fibroblasts do not cease to produce collagen at the proper time, and the resultant scar swells with the fibrous protein to unusual proportions. If this growth remains restricted to the original location of the wound then it is referred to as a hypertrophic scar, but if it extends past the boundaries of the injured area, then the overgrown scar is called a keloid.
(Source: microscopyu.com)
Case of the day: What abnormalities can you see on this image? ANSWER: http://goo.gl/OzvRk
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CT guided lung mass biopsy - step by step demonstration by Dr Ian Bickle. VIEW CASE: http://goo.gl/u55yE
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Birth-related Traumatic Injuries of the Scalp
1. Caput succedaneum : It is the most superficial hematoma underneath the skin.
- Normal finding. usually seen in newborn due to pressure from the pelvis, uterus or vagina.
2. Subgaleal hemorrhage : It lies between the galea aponeurotica and the periosteum
- fluctuant mass increasing in size after birth
- babies may have significant blood loss, shock, DIC.
- It have a potential to extend into the neck, periorbital regions, or forehead. (i.e. cross cranial suture lines.)
3. Cephalohematoma : It lies beneath the periosteum.
- It can easily differentiate from subgeal hematoma as it is bound by the pericranium superiorly and therefore does not cross cranial suture lines.
- It can lead to hyperbilirubinemia.
- usually resolve within weeks
- may be a fluctuant mass
(via fuckyeahnarcotics)
New Stroke Tutorial - Evolution from acute to chronic infarction on CT and MRI. VIEW VIDEO: http://goo.gl/Q4PLF
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