Necrosis (from the Greek νεκρός , dead , νέκρωσις , death, the stage of dying, the act of killing ) is the premature death of cells in living tissue . Necrosis is caused by factors external to the cell or tissue, such as infection, toxins, or trauma. This is in contrast to apoptosis , which is a naturally occurring cause of cellular death. While apoptosis often provides beneficial effects to the organism, necrosis is almost always detrimental and can be fatal. Cells that die due to necrosis do not usually send the same chemical signals to the immune system that cells undergoing apoptosis do. This prevents nearby phagocytes from locating and engulfing the dead cells, leading to a build-up of dead tissue and cell debris at or near the site of the cell death. For this reason, it is often necessary to remove necrotic tissue surgically , a process known as debridement .
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My grandmother has an unopened pressure sore on her heel. I know that her's is in either the: "Unstageable stage: Full thickness tissue loss in which actual depth of the ulcer is completely obscured by slough (yellow,...
Online Doctor Chat (3) - Necrosis
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User : tat area is slightly black
User : & if i press it pains little bit
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User : Hi. My daughter ate a recee's chocolate earlier today, and then noticed a small white worm crawling in the package. We're not sure if she ate one or not. Should she seek medical attention?
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Public Forum (10) - Necrosis
Hi i have a question on what this might be. Yesterday i wokeup for school and all morning the top of my right ear just itched. . I left it alone. Later that day it was sore. So today, i looked at it and compared it to my left and it seems to be a little swollen and red and on top of it it has a green scab. Im worried and hoping you may answer my...
hello.my dad has a dry toe gangrene which is getting better after he had a bypass surgery,but doctor said the dead tissue is small and may fall off in a months time.the nurses r coming once a week to clean the area,but i am cleaning it twice a day too.i found today two very small worms from one side coming out of his toe.would you suggest i...
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5 days post head surgery for removal of accumulated pus and necrotic tissues from first surgery almost 2 years ago.Right temple surgical wound never healed,complicated by pseudomonas infection.Received chemo and radiation tx for 9 mos after first sx(cancerous tumor ).Discharged after 2 weeks hospital stay 10 days of Piperacillin .Noted pulsating...
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Hello My age is 28 now and when i was 22 there was an infection in my left tastus and Dr. says that tissue are dead after some days tissue s came out from skin and Dr. cut those dead tissue after some time my left tastus will disappear slowly and slowly and its seem to be nothing in left tastus side now. i have now 1 tastus in my right side. i...
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hi i m rajneesh, two days prior my 6 years old son was bitten by a monkey on the calf of right leg. there is a massive wound due to it. doctors are saying that they will wash the wound for 6 days and then only they will stitch the wound as washing made the wound infection-free. they have given two injection of vexirab injection out of 5...
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My dentist told me I had a cracked filling and she was going to refill it. Do all cracked fillings have to have crowns or root canals bit anxious and worried.... Is a cracked filling always a cracked tooth or just the filling and do they always mean root canals if its the filling??
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I had a tooth implant placed on Friday. Woke up to find a large clot over the area on Saturday. It dissipated through the day. Now I have small white flap, clearly dead tissue as it doesn t hurt a bit, in the area. Would like to pull it off. It s about the size of a pencil eraser. I probably should leave it alone. Anyway does this sound normal?...
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Hello Doctor , My dad is a diabetic patient . Two months ago he had a wound in leg and had treatment in a clinic , they made a surgery in leg and this wound did not get cured. Now there is pus getting out from the wound as thick yellow colour. Sugar level is 124 in fasting and 250 after food. Now we are taking insulin injection (Lupisin R) as...
SIR my 04 years son had samll nodes in neck on both sides. The FNAC report says smears show presence of lymphoreticular cells consisting of mature small lymphocytes along with centrocytes and centroblasts against haemorrhagic backgrond. Impression- Reactive hyperplasia of lymph node. The USG NECK report says that thyroid bilateral parotid and...
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EXAMINATION SACTION FROM THE NECROTIC AREA SHOW PARATESTICULAR FIBROCOLLAGENOUS TISSUE INFILTRATED BY LARGE NUMBER OF LYMPHOCYTES AND PLASMA CELLS ADMIXED WITH HISTIOCYTES AND POLYMORPHONULEAR NEUTROPHILS. SCATTERED MICROABSCESSES ARE PRESENT. NO GRANULOMA FOUND. THE TESTIS IS COMPLETLY INFARCTED. THERE IS NO EVIDENCE OF MALIGNANCY. MEANS THE...