#tissue pathology
- Amphophilic — Describing cells, tissues, or histological structures: having a dual staining affinity, with the capacity to bind both acid (eosin) and basic (hematoxylin) dyes. This structural biochemical property usually indicates the presence of diverse cytoplasmic components, characteristic of intermediate cellular stages or specific tumor processes.
- Amiantoid — Resembling amiantus; a term used in mineralogy to describe crystalline formations with a fibrous and silky appearance. In medical histology, it describes a rare form of cartilage degeneration (amiantoid degeneration), characterized by the appearance of dense bundles of thick collagen fibers that mimic the structure of asbestos.
- Amicrobial — Containing no microbes, not caused by microbes, or developing in the absence of microorganisms; relating to pathological processes (such as certain inflammations or aseptic abscesses) whose structural etiology does not involve the presence of infectious bacteria or fungi.
- Amitotic — Pertaining to amitosis or occurring through amitosis; relating to direct cell division, characterized by the simple cleavage of the nucleus and cytoplasm without the individualization of chromosomes and without the formation of the mitotic apparatus (spindle). This physiological structural mechanism is specific to certain specialized, aged, pathological cells or lower unicellular organisms.