is a rare appendix cancer that can spread within the abdomen.

involves appendix inflammation or disorders causing right-lower abdominal pain.

is a rare, benign smooth muscle tumor of the appendix, often incidental.

is a rare cancer of appendix lymph tissue, often mimicking appendicitis.

is a rare appendix cancer producing mucus, sometimes causing pseudomyxoma peritonei.

is a visual processing disorder causing difficulty recognizing objects despite sight.

is an allergic reaction to apples, causing mouth itching and hives.

is a brain-based movement planning disorder causing difficulty performing learned actions.

is an immune reaction to apricots causing itching, hives, or anaphylaxis.

is a rare, severe brain malformation with absent forebrain structures, often fatal.

is a severe, rare birth defect of the forebrain and cerebellum.

is a rare, severe congenital brain malformation affecting forebrain development, often fatal.

causes rapid wrinkling and swelling of palms and soles after water exposure.

is a rare eye emergency with shallow chamber and elevated pressure.

is a genetic disorder with long fingers (arachnodactyly), abnormal bones, intellectual disability.

is a rare genetic condition causing arachnodactyly (long fingers), intellectual disability, dysmorphism.

is a fluid-filled sac in the brain or spinal cord.

is inflammation of the spinal arachnoid membrane causing chronic nerve pain.

is a viral illness spread by mosquitoes or ticks, causing fever.

is a gray-white corneal ring from cholesterol deposits, usually harmless.

is a rare genetic condition affecting development across multiple body systems.

is anemia from low red blood cell production, causing fatigue and pallor.

is a viral infection usually spread by rodents, causing fever and malaise.

is a Junín virus disease from rodents in Argentina causing bleeding.