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Doctor insights on: Difference Between Renal Prerenal And Postrenal Pathology

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What is the difference between a histology and a pathology report?

What is the difference between a histology and a pathology report?

Unclear question: Histology usually refers to microscopic features of a tissue. Pathology report has interpretation of the findings and is usually more than just histology. Pathology reports also deal with blood tests, microbial cultures and genetic tests. ...Read more

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Dr. Amy Deeken
343 doctors shared insights

Pathology (Definition)

Pathology is essentially the study of disease. Specialist trained to help diagnose disease (laboratory medicine) are known as pathologists. Pathologist have completed medical school and completed a ...Read more


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What does a typical pathology report state at the minimum?

The basics: Patient identifying data, site from which the tissue was taken, a description of what was received by the pathologist and if so what type of preservative / fixative if any. On resected specimens, the description showcases the pathologist's sharp eyes. Almost always there will be a microscopic description of some portion stained in some way, unless it's orthopedic hardware or something similar. ...Read more

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What is necrosis in reference to renal cancer and would it be clearly stated on a pathology report as the percentage of sarcomatiod is ?

What is necrosis in reference to renal cancer and would it be clearly stated on a pathology report as the percentage of sarcomatiod is ?

Dying cells: Necrosis refers to part of the tumor that is dying, presumably because the tumor is growing too rapidly. There is some evidence to suggest that necrosis indicates a worse prognosis although it is not yet included in the required reporting. However if a procedure called embolization is performed to cut off blood flow to the tumor, this type of necrosis is not necessarily bad. ...Read more

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After nephrectomy for clear cell renal cancer , pathology lab gave me slides of cancer.How can they be helpful for me in screening/prognosis?

After nephrectomy for clear cell renal cancer , pathology lab gave me slides of  cancer.How can they be helpful for me in screening/prognosis?

Screening/prognosis: Having your slides with you are always helpful. You are young, and rcc is rare in young people except those with familial predispositions, such as von hippel lindau, polycystic kidney disease or tuberous sclerosis. In terms of screening, your slides can be used by pathologists to compare your prior tumor to anything new that arises or assess the grade of your tumor to prognosticate behavior. ...Read more

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Can a person survive prerenal acute renal failure due to severe dehydration without medical help? If so, what are the consequences of not gettin help?

Can a person survive prerenal acute renal failure due to severe dehydration without medical help? If so, what are the consequences of not gettin help?

Not advised: Yes, but just because something can be done means that it should be down. A prolonged prerenal state can lead to severe tubular necrosis which is not quickly or always 100% reversible. Prolonged renal failure (prerenal or otherwise) if severe enough puts the individual at risk of death from chemical abnormalities and uremia. Short term risk death, if survives long term risk incomplete recovery. ...Read more

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What is a common predisposing factor for pre-renal acute renal failure post-operatively?

What is a common predisposing factor for pre-renal acute renal failure post-operatively?

Surgery: Blood loss, inadequate volume resuscitation, excess diuretics, poor PO in take. Any thing that removes fluid from the body or reduces renal blood flow, such as low cardiac output. ...Read more

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Does urine specific gravity increase or decrease in post-renal azotemia ? And what about pre renal ?

Does urine specific gravity increase or decrease in post-renal azotemia ? And what about pre renal ?

Depends : In pre renal azotemia if due dehydration or volume depletion, specific gravity should be high but depends on baseline kidney functions like any underlying kidney disease. I am not sure what you meant by post renal azotemia- in general someone passing lots of urine and is clear, specific gravity should be low as it is likely to be dilute urine; but are some exceptions. ...Read more

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Pre-renal acute renal failure may occur without systemic hypotension in patients taking nsaid or acei , why ? I just do not get it ?

Pre-renal acute renal failure may occur without systemic hypotension in patients taking nsaid or acei  , why ? I just do not get it ?

Effect blood flow: Nsaids interfere with prostaglandin production in the kidney , some of which may cause blood vessels to dilate. Blocking the prostaglandin production causes the vessels to constrict and decreases blood flow to the kidney. Acei inhibit angiotensin ii production this allows the efferent arteriole to dilate, lowering the hydrostatic pressure in the glomerulous and decreasing kidney function. ...Read more

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What is the difference between a scca from a lymphoma in pathology process?

What is the difference between a scca from a lymphoma in pathology process?

Different cell type: SCCa is squamous cell carcinoma. This tumor arises from squamous epithelium which can normally be found in many places including the skin, esophagus, cervix, vagina, larynx/vocal cords, and other places. Lymphoma is a neoplasm deriving from lymphoid cells in the lymph nodes or in organs with lymphoid tissue (spleen, tonsils, intestinal tract, etc). SCCa and lymphoma arise from different cells ...Read more