Pharyngitis caused by Streptococcus pyogenes, also known as Group A Streptococcus (GAS), represents one of the most common and clinically significant bacterial throat infections. Prompt…
Haemophilus parainfluenzae is an opportunistic, gram-negative bacterium commonly found in the upper respiratory tract. Though often part of the normal oropharyngeal flora, it has emerged…
Peyronie’s disease is a noncancerous condition characterized by the development of fibrous scar tissue, or plaque, within the penis. This leads to abnormal curvature during…
Pertussis, commonly known as whooping cough, is a highly contagious respiratory infection caused by Bordetella pertussis. This bacterial illness is characterized by severe coughing fits…
Persistent pulmonary hypertension of the newborn (PPHN) is a critical condition characterized by the failure of the normal circulatory transition that occurs after birth. It…
Pernicious anemia is a form of megaloblastic anemia resulting from vitamin B12 deficiency due to impaired absorption in the gastrointestinal tract. It is classified as…
Peritonitis is a severe and potentially life-threatening inflammation of the peritoneum—the thin layer of tissue lining the inside of the abdominal wall and covering the…
Peripheral Vascular Disease (PVD), also referred to as Peripheral Artery Disease (PAD), is a circulatory disorder that affects the blood vessels outside the heart and…
Peripheral T-cell lymphoma (PTCL) refers to a diverse group of rare and aggressive non-Hodgkin lymphomas (NHL) derived from mature T-lymphocytes. Unlike B-cell lymphomas, PTCLs exhibit…