Terminology Service < Semantic Lookup Platform

All individuals in MESHD

Label	Id	Description
Pituitary Apoplexy	D010899	[The sudden loss of blood supply to the PITUITARY GLAND, leading to tissue NECROSIS and loss of function (PANHYPOPITUITARISM). The most common cause is hemorrhage or INFARCTION of a PITUITARY ADENOMA. It can also result from acute hemorrhage into SELLA TURCICA due to HEAD TRAUMA; INTRACRANIAL HYPERTENSION; or other acute effects of central nervous system hemorrhage. Clinical signs include severe HEADACHE; HYPOTENSION; bilateral visual disturbances; UNCONSCIOUSNESS; and COMA.]
Pituitary Diseases	D010900	[Disorders involving either the ADENOHYPOPHYSIS or the NEUROHYPOPHYSIS. These diseases usually manifest as hypersecretion or hyposecretion of PITUITARY HORMONES. Neoplastic pituitary masses can also cause compression of the OPTIC CHIASM and other adjacent structures.]
Pituitary Neoplasms	D010911	[Neoplasms which arise from or metastasize to the PITUITARY GLAND. The majority of pituitary neoplasms are adenomas, which are divided into non-secreting and secreting forms. Hormone producing forms are further classified by the type of hormone they secrete. Pituitary adenomas may also be characterized by their staining properties (see ADENOMA, BASOPHIL; ADENOMA, ACIDOPHIL; and ADENOMA, CHROMOPHOBE). Pituitary tumors may compress adjacent structures, including the HYPOTHALAMUS, several CRANIAL NERVES, and the OPTIC CHIASM. Chiasmal compression may result in bitemporal HEMIANOPSIA.]
Pityriasis	D010915	[A name originally applied to a group of skin diseases characterized by the formation of fine, branny scales, but now used only with a modifier. (Dorland, 27th ed)]
Pityriasis Lichenoides	D017514	[A subgroup of PARAPSORIASIS itself divided into acute and chronic forms. The acute form is characterized by the abrupt onset of a generalized, reddish-brown, maculopapular eruption. Lesions may be vesicular, hemorrhagic, crusted, or necrotic. Histologically the disease is characterized by epidermal necrolysis. The chronic form shows milder skin changes with necrosis.]
Pityriasis Rosea	D017515	[A mild exanthematous inflammation of unknown etiology. It is characterized by the presence of salmon-colored maculopapular lesions. The most striking feature is the arrangement of the lesions such that the long axis is parallel to the lines of cleavage. The eruptions are usually generalized, affecting chiefly the trunk, and the course is often self-limiting.]
Pityriasis Rubra Pilaris	D010916	[A chronic skin disease characterized by small follicular papules, disseminated reddish-brown scaly patches, and often, palmoplantar hyperkeratosis. The papules are about the size of a pin and topped by a horny plug.]
Placenta Accreta	D010921	[Abnormal placentation in which all or parts of the PLACENTA are attached directly to the MYOMETRIUM due to a complete or partial absence of DECIDUA. It is associated with POSTPARTUM HEMORRHAGE because of the failure of placental separation., Invasion of CHORIONIC VILLI occurs through the MYOMETRIUM penetrating the uterine SEROSA., Invasion of CHORIONIC VILLI occurs deep into the MYOMETRIUM.]
Placenta Diseases	D010922	[Pathological processes or abnormal functions of the PLACENTA.]
Placenta Previa	D010923	[Abnormal placentation in which the PLACENTA implants in the lower segment of the UTERUS (the zone of dilation) and may cover part or all of the opening of the CERVIX. It is often associated with serious antepartum bleeding and PREMATURE LABOR.]
Placenta, Retained	D018457	[A placenta that fails to be expelled after BIRTH of the FETUS. A PLACENTA is retained when the UTERUS fails to contract after the delivery of its content, or when the placenta is abnormally attached to the MYOMETRIUM.]
Placental Insufficiency	D010927	[Failure of the PLACENTA to deliver an adequate supply of nutrients and OXYGEN to the FETUS.]
Plagiocephaly	D059041	[The condition characterized by uneven or irregular shape of the head often in parallelogram shape with a flat spot on the back or one side of the head. It can either result from the premature CRANIAL SUTURE closure (CRANIOSYNOSTOSIS) or from external forces (NONSYNOSTOTIC PLAGIOCEPHALY).]
Plagiocephaly, Nonsynostotic	D049068	[A deformity of the SKULL that is not due to bone fusion (SYNOSTOSIS), such as craniosynostoses, and is characterized by an asymmetric skull and face. It is observed with an increased frequency in INFANTS after the adoption of supine sleeping recommendations to prevent SUDDEN INFANT DEATH SYNDROME.]
Plague	D010930	[An acute infectious disease caused by YERSINIA PESTIS that affects humans, wild rodents, and their ectoparasites. This condition persists due to its firm entrenchment in sylvatic rodent-flea ecosystems throughout the world. Bubonic plague is the most common form.]
Plant Poisoning	D010939	[Poisoning by the ingestion of plants or its leaves, berries, roots or stalks. The manifestations in both humans and animals vary in severity from mild to life threatening. In animals, especially domestic animals, it is usually the result of ingesting moldy or fermented forage.]
Plaque, Amyloid	D058225	[Accumulations of extracellularly deposited AMYLOID FIBRILS within tissues.]
Plaque, Atherosclerotic	D058226	[Lesions formed within the walls of ARTERIES.]
Plasma Cell Granuloma, Pulmonary	D016726	[A tumor-like inflammatory lesion of the lung that is composed of PLASMA CELLS and fibrous tissue. It is also known as an inflammatory pseudotumor, often with calcification and measuring between 2 and 5 cm in diameter.]
Plasmablastic Lymphoma	D000069293	[Malignant lymphoma composed of large B lymphoid cells which have the immunophenotype of plasma cells and a predilection for the ORAL CAVITY.]