Squamous Cell Carcinoma
Squamous Cell Carcinoma

•  This medium power view shows the wall of a nest of squamous carcinoma with central cystic degeneration.

•  The cells mimick the formation of a normal epithelium.

•  The left lower corner of the photograph shows stroma.

•  The cells lack maturation.

•  Nuclei are large and vary in size and shape.

•  Some nucleoli are visible.

•  Nuclei show an irregular distribution of chromatin with clumping and clearing.

•  Keratinization is not seen.


(Image Contrib. by:UCHC)(Description by: Melinda Sanders,M.D.)
T83000M80703
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Squamous Carcinoma of Cervix
Etiology

•human papillomavirus (HPV) particularly types 16,18,31,33,35


Pathogenesis

•integration into host genome of HPV with inactivation of p53

•area of active research


Epidemiology

•sexually transmitted disease particularly affecting young women

•increased in cigarette smokers

•age peak at 40-45 but dropping

•women who have never had a pap smear or have not had one in 5 years


Clinical

•symptoms of vaginal bleeding (post-coital) and discharge

•most neoplasms are found at Stage I (confined to cervix)

•spread is contiguous into paracervical tissues and/or proximal vagina (Stage II) to the pelvic sidewall and/or lower vagina (Stage III) or into rectal or bladder mucosa (Stage IV)

•death from hemorrhage, infection, or obstruction of ureters or bowel

•treatment with surgery or radiation (Stage I), radiation for later stages (+/-) chemotherapy

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General Gross Description

•usually fungating, may be ulcerated or infiltrative

•cut surfaces gray white, hard, poorly circumscribed

•necrosis and hemorrhage common


General Micro Description

•usually non-keratinizing or keratinizing, rarely small cell

•sheets or nests with individually keratinized cells or pearls

•round to oval nuclei, coarsely granular chromatin

•prominent nucleoli


Reference

• Cotran RS, Kumar V, Robbins SL: Robbins Pathologic Basis of Disease. 5th ed. Philadelphia, W.B. Saunders, 1994, pp. 1052-1053


• Current literature from PubMed at National Library of Medicine


Synopsis by: Melinda Sanders M.D., UCHC
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