Hypopharngeal Tumors

👉Histopathologic types of tumors of the hypopharynx:
1. The most common (90% to 95%) histologic type of cancer is squamous cell carcinoma.

2. Other malignant tumours present in a similar manner either with ulceration or as a non-ulcerative swelling:
– Malignant minor salivary gland tumors

– Lymphomas

– Sarcomas


👉Macroscopic pathology:
1. The majority of tumors present as ulcers and are widely infiltrative.
2. They have a tendency to extend submucosally and also also to metastasize to the local lymph nodes.

👉Epidemiology:
1. The hypopharynx is an uncommon site of tumors, the majority being malignant, and accounts for less than 10% of all squamous cell carcinomas overall.
2. The overall incidence in the Western world is one case per 100 000 per year:
– 1800 new cases each year of hypo pharyngeal cancers are reported in the USA.
3. There is a high incidence in Northern France of 14.8 per 100 000 per year, which accounts for 18% of head and neck cancer seen in France.
5. The mean age at presentation is 60 years.
6. The piriform sinus and posterior pharyngeal wall carcinomas demonstrate a male dominance: – 5 to 20 : 1.
7. Postcricoid lesions unlike other sites, shows a moderate female preponderance 1.5 : 1.

#Arrangoiz #HeadandNeckSurgeon #CancerSurgeon #HeadandNeckCancer

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