squamous epithelial cell in sputum afb

adenocarcinoma anatomy background biology biopsy cancer carcinoma cell cervical cervix cytology cytoplasm disease epithelial female glandular gynecology histology hpv human laboratory malignancy malignant medical medicine micro microbiology microscope view microscopic microscopy nucleus pap papilloma pathologist pathology research science skin smear squamous tissue tumor vaccine vaginal woman sputum afb negative