Ocular hyperthyroidism and goiter describe the effects of Graves’
disease, manifested in neck enlargement and eye protrusion. This
autoimmune condition causes drastic physical changes due to the
excess of thyroid hormones.
Ocular myasthenia: an autoimmune disorder that causes weakness
in the eye and eyelid muscles. It triggers double vision and eyelid
drooping due to a failure in nerve transmission. Treatment is based
on immunosuppressants and medications.
Ocular reactive arthritis: manifestation of an immune response to
past infections causing inflammation in the eyes (uveitis). It triggers
redness, pain, and blurred vision, requiring a multidisciplinary approach
between rheumatologists and ophthalmologists for effective treatment
and long-term prevention of visual complications.
An ovarian cyst is a fluid-filled sac that forms in or on the ovary.
It is usually benign and asymptomatic, but may cause pain, bloating,
or menstrual irregularities, and is commonly detected by ultrasound.
An overactive thyroid gland defines the hormonal excess caused by an
immune reaction against the thyroid gland. This condition generates
hyperthyroidism and goiter, causing a visual and functional disparity
compared to a healthy gland.
Pancreatic islets of Langerhans: pancreatic cell groups vital for
insulin production. Their destruction or exhaustion causes deficient
blood glucose regulation. Understanding their function is fundamental
for the permanent treatment of type 1 and type 2 diabetes.
Pernicious anemia: an autoimmune disease in which antibodies attack
the stomach, preventing the absorption of vitamin B12. This leads to
the formation of defective red blood cells and neurological damage.
It causes fatigue and weakness, so it requires lifelong treatment with
vitamin B12 supplements to stabilize the blood and the nervous system.
Primary adrenal insufficiency: a disorder where the adrenal glands
lose activity in the glomerular and fascicular layers. This prevents cortisol
and aldosterone production due to immune failure. It requires lifelong
hormonal treatment to regulate metabolism and blood pressure.
Primary adrenal insufficiency: a disorder where the adrenal glands
do not produce cortisol or aldosterone due to autoimmune damage or
infection. It causes fatigue, hypotension, and skin darkening. Treatment
consists of lifelong hormone replacement to stabilize metabolism and
blood pressure.
Progressive multifocal leukoencephalopathy is a serious brain
infection that destroys myelin in people with weakened immune
systems. This pathology, caused by the JC virus, triggers white
matter lesions that disrupt nerve transmission and cause permanent
neurological damage.
Prostate cancer is a malignant growth in the prostate gland that
may be asymptomatic early. It can cause urinary difficulties, pain,
and blood in urine, requiring diagnosis with PSA tests and biopsy.
The prostate produces prostatic fluid, a key part of semen.
During ejaculation, it mixes with sperm, supporting their
mobility and contributing to male reproductive function.