Gallbladder Disease (Cholecystitis or Cholelithiasis): The right upper abdominal quadrant is a common location for gallbladder pathology, and movement can exacerbate the pain due to the peritoneal irritation caused by gallstones or inflammation.

Peptic Ulcer Disease: Ulcers in the stomach or duodenum can cause pain that worsens with movement, especially if the ulcer is penetrating or has caused a perforation, leading to peritonitis.
Hepatitis: Inflammation of the liver can cause right upper quadrant pain that may worsen with movement due to the liver's location and the potential for capsular stretching.
Right Lower Lobe Pneumonia: Referred pain from the right lower lobe of the lung can sometimes be perceived in the right upper abdominal quadrant, especially if the diaphragm is involved (pleuritic chest pain).

Appendicitis (with atypical presentation): Although appendicitis typically presents with pain in the right lower quadrant, an atypical presentation with the appendix located in a retrocecal position could potentially cause right upper quadrant pain.
Hepatic Abscess or Liver Tumor: These conditions can cause severe, movement-exacerbated pain and have significant implications for morbidity and mortality if not promptly diagnosed and treated.
Perforated Viscus: Any perforation in the gastrointestinal tract can lead to peritonitis, which causes severe pain that worsens with movement. Early diagnosis is crucial for survival.

Right Diaphragmatic Hernia: A rare condition where abdominal contents herniate through the diaphragm, potentially causing severe pain that worsens with movement.
Intra-abdominal Tumors (e.g., lymphoma): Although less common, tumors in the abdomen can cause pain that worsens with movement due to their size, location, and potential to cause intestinal obstruction or peritoneal irritation.
Pancreatitis: While pancreatitis more commonly causes mid-abdominal pain, a rare presentation could involve the right upper quadrant, especially if the pancreatic tail is involved.