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Hodgkin lymphoma

Painless swelling of a node in the neck is the usual opening, sometimes with drenching night sweats and a fever that comes and goes.

homeopathy

Homeopathy is an alternative medicine system based on treating symptoms with extremely diluted substances chosen to mimic those same symptoms.

hyperplasia

More cells than there should be in a tissue, which is not the same thing as bigger cells or abnormal ones.

hypersensitivity

The damage comes from the response rather than the substance, as harmless proteins provoke a reaction built for parasites and pathogens.

infection

/ in-FEK-shun /

Invasion and multiplication of a microorganism in or on the body.

inflammatory

Calling a condition inflammatory says how the damage is being done, not what set it off, and those two questions stay separate.

inhaler

An inhaler delivers medication as a fine mist or powder breathed into the lungs through the mouth, most often for asthma or COPD.

International Unit

A measure of what a substance does rather than how much it weighs, agreed internationally so different products can be compared.

intracellular

/ IN-truh-SEL-yoo-ler /

Intracellular means located, occurring, or functioning inside a cell.

isolated hepatic perfusion

A procedure in which a catheter is placed into the artery that provides blood to the liver.

isolated lung perfusion

A surgical procedure during which the circulation of blood to the lungs is separated from the circulation of blood through the rest of the body, and a drug is delivered directly into the lung…

isolation

Isolation refers to separating a person from others, whether for infection control purposes or as a broader social or psychological state.

isthmus

An isthmus is a narrow band of tissue connecting two larger anatomical structures, a term applied across several different organs.

keratoacanthoma

This dome shaped skin growth appears within weeks and often resolves untreated, yet it can be nearly indistinguishable from squamous cell carcinoma.

ketone

Their presence alone says little; what matters is whether the body chose to make them or was driven to it by missing insulin.

lanolin

Wax recovered from sheep wool and purified, valued because it holds water against the skin much as the skin's own oils do.

laparoscope

It is the eye of keyhole surgery: instruments enter through separate ports, and the whole team operates from one magnified screen image.

laryngectomee

A laryngectomee is a person who has undergone complete surgical removal of the larynx and now breathes through a neck opening.

laryngectomy

A laryngectomy is a surgical procedure that removes all or part of the larynx, most often to treat laryngeal cancer.

laryngoscope

A laryngoscope is a lighted instrument used to view the larynx, most often to guide placement of a breathing tube.