Theory & Practices of Clinical Laboratory
Amebic colitis, amebic dysentery, and extraintestinal amebiasis are some of the common diseases caused by Entamoeba histolytica. By infecting the mucosa of the colon, this ameba infect people, causing flask-shaped lesions and bloody diarrhea.The trophozoite secretes lyticenzymes, which can spread to other tissues, including the liver, resulting in amebic ulceration. …
Pelger-Huët anomaly (PHA), also known as true or congenital PHA, is an autosomal dominant condition marked by reduced nuclear segmentation (bilobed, unilobed) and a distinctive coarse chromatin clumping pattern that can involve any leukocyte, while morphologic differences are more noticeable in mature neutrophils. A mutation in the lamin β-receptor gene …
Introduction The Catalase Test is a rapid and efficient diagnostic tool for identifying bacterial species. By detecting the presence of the enzyme catalase, this test distinguishes catalase-positive bacteria, like Staphylococcus, from catalase-negative organisms, such as Streptococcus. Widely used in clinical microbiology, it provides valuable insights for bacterial identification. Catalase is …