Zollinger-Ellison Syndrome
Zollinger-Ellison Syndrome (ZES) is a rare but serious disorder characterized by the formation of gastrin-secreting tumors, known as gastrinomas, primarily in the pancreas or duodenum.…
Zinc Deficiency
Zinc is an essential trace mineral that supports hundreds of physiological functions, from immune response and wound healing to cellular metabolism and DNA synthesis. Zinc…
Zidovudine-Induced Anemia
Zidovudine (AZT), a nucleoside reverse transcriptase inhibitor (NRTI), was the first antiretroviral drug approved for the treatment of HIV. While effective in suppressing viral replication,…
Xerostomia Secondary to Radiation Therapy
Xerostomia secondary to radiation therapy refers to persistent dry mouth resulting from damage to salivary glands caused by therapeutic ionizing radiation, particularly during head and…
Xerostomia
Xerostomia, commonly known as dry mouth, is a condition marked by reduced or absent saliva flow. It significantly impacts oral and systemic health, leading to…
X-Linked Agammaglobulinemia
X-linked agammaglobulinemia (XLA), also known as Bruton's agammaglobulinemia, is a rare primary immunodeficiency characterized by an almost complete absence of mature B lymphocytes and immunoglobulins…
Wound Irrigation
Wound irrigation is a fundamental aspect of wound management involving the controlled application of fluid to cleanse and remove exudates, foreign material, bacteria, and cellular…
Wild-Type RAS, HER2-Positive Colorectal Cancer
Colorectal cancer (CRC) is a biologically diverse malignancy characterized by distinct molecular profiles. One such molecular subtype includes tumors that are wild-type RAS (lacking mutations…
Wernicke-Korsakoff Syndrome
Wernicke-Korsakoff Syndrome (WKS) is a serious neurological disorder composed of two distinct but related conditions: Wernicke encephalopathy and Korsakoff psychosis. These conditions often occur sequentially…