Different from normal.
Irregular; not conformable to the type; in microbiology, applied specifically to strains of unusual type.
An adjective used to describe unusual or uncharacteristic variations of a disorder.
Atypical Irregular or not of typical character.
Deviating from the normal; not conforming to type.
Atypical is a term utilized to describe something that deviates from the typical or expected type or pattern. In the context of diseases or disorders, an atypical presentation refers to a situation where the initial symptoms and signs differ from the usual ones, potentially complicating the diagnosis of the condition. This deviation from the norm can pose challenges in recognizing and accurately identifying the underlying disease or disorder, requiring healthcare professionals to carefully evaluate the unique manifestations and consider a broader range of possibilities.