What are the symptoms and diagnostic etiologies of acute pancreatitis, cholecystitis, and acute abdomen? Symptoms of Acute Pancreatitis Symptoms of...

What are the symptoms and diagnostic etiologies of acute pancreatitis, cholecystitis, and acute abdomen?
Symptoms of Acute Pancreatitis
Symptoms of Cholecystitis
Symptoms of Acute Abdomen
Diagnostic Etiologies of Acute Pancreatitis
I- Acute pancreatitis is an inflammatory process of the pancreas characterized by the necrosis of the gland by self-digestion due to the activation of its proenzymes.
II- The symptoms of acute pancreatitis include abdominal pain that radiates in a belt shape in the back, digestive disorders (nausea, vomiting), palpation pain in the epigastric and hypochondrium, Grey-Turner's sign, hepatomegaly, weight loss, diarrhea with the presence of fat and clay-colored stools, fever, sweating, abdominal fullness due to gas, mild yellowing of the skin and sclera of the eyes (jaundice), rash or ulcer (lesion) on the skin, and some cases may have pleural effusion.
III- Cholecystitis is due to an inability to maintain certain solutes (fundamentally cholesterol and calcium salts) in a soluble state. The oversaturation of bile with unconjugated bilirubin favors the formation of black stones, while the oversaturation of bile with cholesterol favors the formation of cholesterol stones. Infection and biliary stasis promote brown stones. The symptoms of cholecystitis include intense and sudden pain in the upper right part of the abdomen, intense and sudden pain in the center of the abdomen just below the sternum, back pain between the shoulder blades, pain in the right shoulder, indigestion, nausea or vomiting, jaundice, acholia, and coluria.
IV- The symptoms of acute abdomen include persistent or severe pain, inflammation, and/or tenderness in the upper, middle, or lower part of the abdomen, involuntary contraction of the abdominal muscles (contracture), tension and rigidity of the abdominal muscles (rigidity), and fever. The triggering stimuli of abdominal pain are mechanical (traction, distension, and stretching on hollow viscera, peritoneum, and capsule of solid viscera abruptly), inflammatory (release of substances involved in the inflammatory process, both physical and infectious), and ischemic (cessation of blood flow causes pain due to irritation of certain tissue metabolites).
V- The diagnostic etiologies of acute pancreatitis are biliary lithiasis (40-50%), alcohol, and hypertriglyceridemia (with triglyceridemia >1000 mg/dl).