Related Experiment Video
Updated: Feb 5, 2026

Taste Exam: A Brief and Validated Test
Published on: August 17, 2018
A lung pattern you can almost taste
Christopher Castaneda1, Ryan Johnson2, Kris Conde2
1Philadelphia College of Osteopathic Medicine, United States of America.
Abstract:
Headcheese sign is a radiological sign seen on CT and is classically seen in hypersensitivity pneumonitis. The headcheese sign was coined by Patel Rita et al. (2000) based on the appearance of the savory meat dish headcheese. Its appearance is due to a mixture of three different attenuations in the lung which is also known as the three density sign. The mosaic pattern is characterized by the presence of ground glass opacities (higher attenuation), air trapping (decreased attenuation), and normal lung.
Related Concept Videos
The Physiology of Taste
The Tongue and Taste Buds
Taste Buds and Receptors
Conditioned Taste Aversion
A notable characteristic of conditioned taste aversion is that it often requires only a single...
Lung Capacity
Fixed Action Patterns

