Curschmann spiral

Cursch·mann spi·ral

(kūrsh'mahn spī'răl)
A spirally twisted mass of mucus occurring in the sputum in bronchial asthma.
References in periodicals archive ?
During the examination of a respiratory specimen for cellular constituents, virologists may encounter unfamiliar cells, cell fragments, Curschmann spirals, and artifacts, some of which simulate microorganisms.