is an inherited condition that can impair sperm production and fertility.

is an inherited condition that can reduce or stop sperm production.

is an inherited cause of male infertility from severely reduced sperm production.

causes reduced or absent sperm production, which can lead to infertility.

is a genetic condition that reduces or prevents sperm production.

causes reduced or absent sperm production, often leading to male infertility.

is an inherited condition causing reduced or absent sperm production and infertility.

is a usually benign skull base tumor that can affect nearby nerves.

is a rare, usually benign tumor in the sphenoid sinus.

is a rare growth in the sphenoid sinus lining that can recur.

is a rare cancer in the sinus behind the nose.

is a sinus infection behind the nose that can cause deep headache.

is a noncancerous growth in the sinus behind the nose.

is a rare cancer in the sinus space behind the nose.

is a usually slow-growing brain tumor affecting the eye socket and skull.

is a rare inherited muscle disease causing weakness and muscle wasting.

is a group of inherited disorders caused by harmful fat buildup.

is a rare inherited disorder causing fat buildup and seizures.

is a rare condition with abdominal hernia and undescended testes.

is a birth difference where the spine does not fully develop.

is a group of birth defects affecting the spine and spinal cord.

is a common mild spinal birth difference that often causes no symptoms.

is a rare birth condition affecting the spine and urethral opening.

is a rare tumor affecting the nerve that controls shoulder movement.