Final answer:
Median rhomboid glossitis is a fungal infection that affects the midline of the posterior dorsal tongue.
Step-by-step explanation:
The common location affected for Median rhomboid glossitis is the midline of the posterior dorsal tongue. It is a condition that occurs due to a fungal infection caused by Candida albicans.
This infection can appear as a red, itchy rash on the skin, as fungal infections of the nail, or as white patches in the mouth known as thrush. In immunocompromised individuals, the risk of developing candidiasis is higher.