A 37-Year-Old Woman With Post-Coital Bleeding A Powerpoint companion to: LABORATORY MEDICINE CASEBOOK . An introduction to clinical reasoning Jana Raskova, MD Professor of Pathology & Laboratory Medicine Stephen Shea, MD Professor of Pathology & Laboratory Medicine Frederick Skvara, MD Associate Professor of Pathology & Laboratory Medicine Nagy Mikhail, MD Assistant Professor of Pathology & Laboratory Medicine UMDNJ-Robert Wood Johnson Medical School Piscataway, NJ Eugene G. Martin, Ph.D. Associate Professor of Pathology & Laboratory Medicine
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A 37-Year-Old Woman With Post-Coital Bleeding
A Powerpoint companion to: LABORATORY MEDICINE CASEBOOK. An introduction to clinical reasoning
Jana Raskova, MD Professor of Pathology & Laboratory MedicineStephen Shea, MD Professor of Pathology & Laboratory MedicineFrederick Skvara, MD Associate Professor of Pathology & Laboratory MedicineNagy Mikhail, MD Assistant Professor of Pathology & Laboratory Medicine
UMDNJ-Robert Wood Johnson Medical SchoolPiscataway, NJ
Eugene G. Martin, Ph.D. Associate Professor of Pathology & Laboratory Medicine
History and Presentation 37 year old woman seen in physician’s office complaining of a
two week history of post-coital vaginal bleeding. Previous history – Two normal pregnancies. Family history
unremarkable Physical Exam:
Slightly overweight female in no acute distress BP: 120/85 HR 85 bpm - regular Temperature – 98 oF Chest and abdominal examination uremarkable.
Colposcopy Cervix – White patches following the application of acetic acid, a
well as distinct vascular punctuation pattern. PAP smear obtained. Previous PAP reviewed.
PAP SMEAR
Kilocytic atypia: Mature squamous cells,demonstrating a
large perinuclear, lightly stained area. Surrounding peripheral cytoplasm normal Slightly enlarged nuclei
Stains much more intensely. Chromatin appears relatively No secretory or malignant cells present
PAP smear One Year Earlier Normal PAP smear
Normal mature squamous cellsSmall, pyknotic nucleiNo perinuclear haloYellow color is due to cytoplasmic glycogen
PAP SMEAR
Mature squamous cells,demonstrating a large perinuclear, lightly stained area.
Surrounding peripheral cytoplasm stains much more intensely.
Chromatin appears relatively normal
PAP smear: One Year Earlier PAP smear: Current
High Nuclear/cytoplasmic ratio Variation in nuclear size anisokaryosis Irregular nuclear membranes Hyprchromatic nuclei Course chromatin patternDX: Severe dysplasia or CIN IIIHigh-Grade squamous intraepithelial lesion - HGSIL
Cervical Biopsy: HPV In-Situ Hybirdization for types 16 and 18
Note Purple precipitate indicating the site of hybirdization between target and probe DNA
Human Papilloma Virus
HPV types 6,11,42 and 44 – associated with development of low risk benign condylomas
Majority of low-grade cervical intraepithelial cells (CIN 1) exhibit features of HPV infection.
Only a small percentage develop cervical carcinoma
HPV 16,18,31 and 33 - associated with development of high risk cervical carcinoma.
Oncoprotein E6 of HPV types 16, 18 transforms cells in culture by inactivation of human suppressor gene p53.
15% of cervical carcinoma IS NOT associated with HPV
Cervical Biopsy
Normal maturation visible Hyperchromatic basal cells Flattened squamous surface
cells Clear areas represents
normal glycogen deposition
Norma H&E x78l Patient H&E x78
Squamous epithelium – no evidence of maturation Loss of cell polarity Nuclei – hyperchromatic Nuclear size variablePATTERN: Severe dysplasia or Carcinoma in situ
Predisposing factors for cervical carcinoma
Sexual behaviors Early age at first
intercourse Multiple sexual
partners Male partner with
previous multiple sexual partners
Non-sexual risk factors Cigarette smoking Use of oral