is a rare birth defect causing fused legs and serious organ abnormalities.

is a rare inherited disorder causing harmful buildup of plant sterols.

is a rare condition where internal organs develop in unusual positions.

is a condition where internal organs are mirrored from their usual positions.

is a rare condition where the body's internal organs are mirrored.

is a rare genetic condition affecting facial development before birth.

is a rare inherited disorder causing scaly skin, stiffness, and learning problems.

is an autoimmune disease that causes dry eyes, dry mouth, and fatigue.

is a genetic condition causing bone problems, seizures, and short stature.

is a rare genetic disorder affecting bone growth, immunity, and development.

is a rare bone cancer that usually affects children and teens.

is a rare cancer that starts in muscle tissue cells.

is a group of disorders affecting muscles that control movement.

is a tumor in skeletal muscle that may be benign or cancerous.

is a tuberculosis infection affecting bones, joints, or the spine.

is a rare cancer affecting glands near the urethral opening.

is a less-pigmented skin cancer that can look pink, red, or skin-colored.

is a rare, aggressive cancer that starts in blood vessel cells.

causes thinning, fragile skin that may bruise, tear, or heal slowly.

is uncontrolled growth of skin cells, often from UV damage.

is a common skin cancer that usually grows slowly but needs treatment.

is an early-stage skin cancer limited to the top skin layer.

is a broad term for conditions affecting the skin, hair, or nails.

is a rare, usually benign skin growth made of blood vessels.