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.
Prokaryotic cells are unicellular organisms without a nucleus,
containing circular DNA, ribosomes, and a cell wall, enabling
basic functions and rapid adaptation.
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.
Prostate cancer is a malignant tumor affecting the prostate gland.
It may be asymptomatic early, but it can cause urinary symptoms,
pain, and hematuria, requiring diagnosis with PSA testing and biopsy.
Pulmonary emphysema is a chronic disease that destroys
the alveoli and reduces lung elasticity. This makes it difficult
to breathe, decreases gas exchange, and causes dyspnea
and progressive fatigue.
Pneumothorax refers to the inflammation of the membrane
surrounding the lungs, causing sharp pain when breathing
and shortness of breath. This condition can lead to a pleural
effusion or fluid buildup, requiring an accurate diagnosis of
the underlying cause.
Pulmonary tuberculosis is a bacterial infection that damages
the lungs. It causes lesions, hinders gas exchange, and generates
symptoms such as persistent cough, fever, and fatigue.
Early detection and adherence to treatment are essential to avoid
complications.
Reactive arthritis: discover how this musculoskeletal condition
impacts joint and skin health. This summary details tissue inflammation,
psoriasis-like ulcers, and current treatments. Learn why specialized
medical management is key to avoiding long-term complications and pain.
Lens replacement: This shows the final result of cataract surgery, in
which the opaque lens has been replaced with an artificial intraocular
lens. This new lens allows light to focus properly on the retina, restoring
clear vision and improving the patient’s quality of life.
Representationof arteriosclerosis. Illustrationshowingthehardening andnarrowingof the arteriesdueto the accumulationoffatand cholesterol, which reducesbloodflowandincreasesthe riskofheart
attack, stroke,andothercardiovasculardiseases.
Prostate cancer is a common malignant disease in men characterized
by uncontrolled prostate cell growth. Moreover, it may cause urinary
symptoms and spread to other organs. Diagnosis includes PSA testing
and biopsy, and treatment depends on stage and severity.