Pityriasis Rubra Pilaris (PRP)
Pityriasis rubra pilaris (PRP) is a rare, chronic dermatologic condition characterized by follicular hyperkeratosis, erythroderma, and palmoplantar keratoderma. The disease often progresses from isolated patches…
Pituitary-Dependent Cushing’s Disease
Pituitary-dependent Cushing's disease is a specific subtype of Cushing's syndrome caused by excessive secretion of adrenocorticotropic hormone (ACTH) from a pituitary adenoma, typically a microadenoma.…
Pituitary Function Studies
Pituitary function studies are essential diagnostic tools used to assess the secretory capacity of the anterior and posterior pituitary gland, helping clinicians diagnose, manage, and…
Pituitary Dwarfism
Pituitary dwarfism, also referred to as growth hormone deficiency (GHD), is a rare condition that results in abnormally short stature due to insufficient production of…
Pinta Disease
Pinta is a chronic, non-venereal infectious skin disease caused by Treponema carateum, a bacterium closely related to the causative agent of syphilis. This condition is…
PIK3CA-Related Overgrowth Spectrum (PROS)
PIK3CA-related overgrowth spectrum (PROS) comprises a group of rare disorders characterized by somatic mutations in the PIK3CA gene, leading to abnormal tissue growth in multiple…
Philadelphia Chromosome Positive Chronic Myelocytic Leukemia
Philadelphia chromosome-positive chronic myelocytic leukemia (Ph+ CML) is a hematopoietic stem cell disorder characterized by unregulated myeloid cell proliferation, resulting from the formation of the…
Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia
Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL) represents a high-risk subtype of ALL, characterized by the presence of the BCR-ABL1 fusion gene resulting from a…
Pheochromocytoma Adjunct Therapy
Pheochromocytoma Adjunct Therapy: Pheochromocytoma is a catecholamine-secreting tumor that primarily arises from the adrenal medulla. While surgical resection remains the cornerstone of treatment, adjunct therapies…
Pheochromocytoma
Pheochromocytoma is a rare catecholamine-producing tumor that arises from the chromaffin cells of the adrenal medulla. It is characterized by excessive secretion of epinephrine, norepinephrine,…