Tumour of Nasopharynx.

Oncocytic metaplasia of the nasopharynx or extra-parotid Warthin's tumour?

A case of oncocytic metaplasia obstructing the Eustachian tube in an elderly patient is described. Histologically, it was similar to Warthin's tumour of the parotid gland. The lymphocytes were predominantly T cell, unlike those of Warthin's tumour which are predominantly B cell. It is proposed that oncocytic metaplasia represents an early stage in the evolution of Warthin's tumour.

Malignant peripheral nerve sheath tumour in the nasopharynx of a cow.

This case describes the findings in a Swiss Braunvieh cow with a malignant peripheral nerve sheath tumour (MPNST) in the nasopharynx. The major clinical signs were mixed dyspnoea with inspiratory and expiratory noises. Radiographic views of the head revealed an irregular mass with soft-tissue density in the nasopharynx originating from the dorsal pharynx and occupying and restricting the pharyn...

Irradiation of the nasopharynx.

Hairy Polyp of Nasopharynx

1Digvijay Singh, 2Ajit Daharwal, 2Hansa Banjara, 3Sutanu Sarkar 1Senior Resident, Department of Otolaryngology and Head and Neck Surgery, Pt Jawaharlal Nehru Memorial Medical College Raipur, Chhattisgarh, India 2Associate Professor, Department of Otolaryngology and Head and Neck Surgery, Pt Jawaharlal Nehru Memorial Medical College Raipur, Chhattisgarh, India 3Resident, Department of Otolaryngo...

Tumour radiobiology beyond fractionation

Historically it has been shown repeatedly that single high doses of radiation do not allow a therapeutic differential between tumor and critical normal tissues but dose fractionation does. The purpose of conventional dose fractionation is to increase dose to the tumor while preserving normal tissue function. Tumors are generally irradiated with 2Gy dose per fraction delivered daily to a more or...