Upper Respiratory Infection (URI)
Upper respiratory infection (URI), also known as an upper respiratory tract infection, encompasses a group of illnesses affecting the nose, sinuses, pharynx, and larynx. URIs…
Upper GI Bleed
Upper gastrointestinal (GI) bleeding is a potentially life-threatening condition that originates proximal to the ligament of Treitz, encompassing bleeding from the esophagus, stomach, or duodenum.…
Unresectable or Metastatic KIT (CD117) Positive Gastrointestinal Stromal Tumor
Unresectable or metastatic KIT (CD117) positive gastrointestinal stromal tumors (GISTs) represent a distinct subset of mesenchymal neoplasms that originate primarily in the gastrointestinal tract. These…
Unresectable Hepatic Metastatic Uveal Melanoma
Unresectable hepatic metastatic uveal melanoma (UM) presents a formidable clinical challenge due to its aggressive nature, poor prognosis, and limited systemic therapy responsiveness. Uveal melanoma,…
Unknown Oral Substance Toxicity
Unknown oral substance toxicity represents a critical and complex medical emergency that arises when an individual ingests an unidentified chemical, medication, plant, or household item…
Uncinariasis
Uncinariasis, commonly known as hookworm infection, is a parasitic disease caused primarily by species of the genus Ancylostoma and Necator. It remains a significant public…
Ulcerative Proctitis
Ulcerative proctitis represents a localized form of ulcerative colitis confined to the rectum. Though often considered a milder variant within the spectrum of inflammatory bowel…
Ulcerative Colitis Remission
Ulcerative colitis (UC) remission signifies a critical therapeutic milestone in the management of this chronic inflammatory bowel disease. Achieving and maintaining remission not only alleviates…
Typhus Infections
Typhus infections, though historically associated with war and overcrowding, continue to pose public health threats in endemic regions. These bacterial illnesses, transmitted primarily by arthropod…
Typhoid Vaccination
Typhoid fever continues to be a public health challenge in low- and middle-income countries. Vaccination plays a pivotal role in preventing Salmonella enterica serotype Typhi…