What are the symptoms and manifestations of acute gastroenteritis?

Acute gastroenteritis is a rapid-onset inflammation of the stomach and small intestine, usually infectious, that resolves within a week in otherwise healthy people. It spans from mild, self-limited discomfort to dramatic fluid loss capable of producing hypovolemic shock within hours. Recognizing the varied faces of the illness guides fluid replacement, diet choices, and the decision to seek medical care. Core gastrointestinal features• Nausea: an uneasy urge to vomit, often accompanied by increased salivation or retching.• Vomiting: first gastric contents, then bile-tinged fluid; repeated every 30–60 min in severe cases, especially with viral or pre-formed toxin causes.• Diarrhea: watery, occasionally rice-water... Learn more

What are the symptoms and manifestations of upper gastrointestinal bleeding?

Upper gastrointestinal bleeding is hemorrhage arising from any site between the mouth and the ligament of Treitz. It may be microscopic, silently lowering blood counts, or massive, producing dramatic visible blood loss that endangers life within minutes. Recognizing the spectrum of presentations allows rapid triage, adequate resuscitation, and targeted endoscopic therapy. Key visual clues• Hematemesis: vomiting red liquid or clots signals brisk arterial bleeding; when gastric acid acts for minutes the material turns “coffee-ground.”• Melena: black, tarry, foul-smelling stool that sticks to porcelain; at least 50 mL of upper-tract blood is required to produce this change, but melena can continue... Learn more

What are the symptoms and manifestations of irritable bowel syndrome?

Irritable bowel syndrome is a functional disorder in which recurrent abdominal pain is linked to altered defecation, without structural or biochemical abnormalities visible on routine testing. Symptoms wax and wane for years, often begin in adolescence or early adulthood, and can dominate daily schedules while leaving life expectancy untouched. Core diagnostic features• Abdominal pain: crampy, aching, or sharp, usually located in the lower abdomen; episodes last minutes to hours and are relieved—at least partially—by passing stool.• Change in stool frequency: patients report more than three loose stools daily or fewer than three stools weekly; some alternate between the two extremes... Learn more

What Are the Symptoms of Intrahepatic Biliary Calculi?

Intrahepatic biliary calculi (hepatolithiasis) are stones that form within the liver’s intrahepatic bile ducts. Most small or segmental stones are silent; symptoms appear when stones obstruct flow, provoke cholangitis, or lead to secondary biliary cirrhosis. Right-upper-quadrant painDull or colicky ache under the ribs, often recurrent and triggered by fatty meals; may radiate to the back or right shoulder. Cholangitis attacksIntermittent fever with chills, shaking rigors, and raised right-sided tenderness (Charcot triad) when stones block a segmental duct and become infected. JaundiceFluctuating yellowing of sclera and skin, dark urine, and pale stools occur as stones impact major intra-hepatic radicals or cause... Learn more

What Are the Symptoms of Intrahepatic Cholangiocarcinoma?

Intrahepatic cholangiocarcinoma (ICC) arises from bile ducts within the liver parenchyma. Early lesions are usually asymptomatic; as the tumor enlarges or metastasizes, the following complaints typically appear: Right-upper-quadrant painA dull, continuous ache or vague fullness beneath the ribs is the most frequent early symptom; it may radiate to the back or shoulder. Palpable mass or hepatomegalyPatients or clinicians can feel a firm, nodular liver edge or localized lump that moves with respiration. Unintended weight loss & anorexiaRapid loss of >5 % body weight within weeks, early satiety and loss of interest in food are common systemic effects. Fatigue and night... Learn more