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Racemose Hemangioma
A racemose hemangioma (RH) is a fast-flow vascular malformation, not a true tumor. Doctors also call it a retinal or iris arteriovenous malformation (AVM) when it...
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RAS- Associated Autoimmune Leukoproliferative Disorder (RALD)
RAS-associated autoimmune leukoproliferative disorder (RALD) is a rare immune-system disorder caused by somatic (acquired) “gain-of-function” mutations in the genes NRAS or KRAS inside blood-forming cells. These...
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Reactive (Benign) Monocytosis
Monocytes are one of the five types of white blood cells. They patrol the bloodstream, move into tissues when needed, and become macrophages or dendritic cells...
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Reactive (Secondary) Monocytosis
Reactive or secondary monocytosis means your blood has too many monocytes—a type of white blood cell—but the reason is not a blood cancer or primary bone...
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Reactive Bilateral Lymphadenopathy
Reactive Bilateral Lymphadenopathy is a condition where the lymph nodes on both sides of the body become swollen and reactive in response to an underlying cause....
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Reactive Thrombocytosis – Causes, Symptoms, Treatment
Reactive thrombocytosis, defined as an abnormally high platelet count in the absence of chronic myeloproliferative disease, secondary to an infection, inflammation, and hemorrhage. Secondary thrombocytosis is...
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Rectal Adenocarcinoma
Rectal Adenocarcinoma is a type of cancer that starts in the cells lining the rectum’s inner wall. The rectum is the lower part of our large...
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Rectal Adenomatoid Tumors
Rectal adenomatoid tumors are rare, benign (non-cancerous) growths that arise from mesothelial cells. Mesothelial cells are found in the lining of certain body cavities and organs,...
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Rectal Carcinoid Tumors
Rectal carcinoid tumors are a rare kind of growth found in the rectum. The rectum is the end part of the large intestine, which is close...
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Rectal Carcinosarcoma
Rectal carcinosarcoma is a rare and aggressive form of cancer that occurs in the rectum, the final section of the large intestine. This guide aims to...
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Rectal Chloroma:
Rectal chloroma is a rare condition that affects the rectum, a part of the large intestine. In this article, we will provide simple, easy-to-understand explanations for...
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Rectal Gastrointestinal Stromal Tumors
Rectal GISTs, or Rectal Gastrointestinal Stromal Tumors, are a type of rare, but important medical condition. Rectal GISTs are abnormal growths that occur in the rectum,...
