In a patient having HIV infections, oral ulcer is most commonly due to -
Mouth often involved in AIDS with hairy leukoplakia or Kaposi's sarcoma due to esophageal candidiasis It is also known as Oral thrush REF:ANANTHANARAYANAN TEXTBOOK OF MICROBIOLOGY 9EDITION PGNO.576
Candida
Cryptococcosis
Histoplasma
Trichophyton
Virology