Antibody- dependent cellular cytotoxicity is a process known to be effective in the destruction of virus infected cells, appears to act on Epstein induced membrane antigens. It is capable of
Tag: MBBS Past Questions
Describe the boundaries of fossa of Rosenmuller. What is its clinical importance?Describe the boundaries of fossa of Rosenmuller. What is its clinical importance?
Also known as lateral pharyngeal recess It is a lateral extension of the nasopharynx lying above and behind the medial end of the Eustachian tube. By adult life it is
How does EBV turns a normal nasopharyngeal cell into a malignant cells?How does EBV turns a normal nasopharyngeal cell into a malignant cells?
EBV is one of the herpes viruses and B cell lymphotrophic. The primary infection of EBV takes place in childhood and is always accompanied by seroconversion and harboring of the
What are the serological tests done in case of nasopharyngeal carcinoma for the diagnosis and the prognosis?What are the serological tests done in case of nasopharyngeal carcinoma for the diagnosis and the prognosis?
The association of nasopharyngeal carcinoma with Ebstein Barr virus is supported by: The presence of a humoral immune response in patient with NPC against EBV determined antigens including the structural
How a biopsy be taken ideally from nasopharynx?How a biopsy be taken ideally from nasopharynx?
Biopsy of the nasopharynx is considered the first necessary investigation for Nasopharyngeal carcinoma (NPC) if a suspicious lesion is formed. Ideally this should be carried out during the patients first
Describe the route of spread of nasopharyngeal carcinoma.Describe the route of spread of nasopharyngeal carcinoma.
From the primary site the tumour may spread in one or more of the following directions: Anteriorly to the nasal cavity and paranasal sinuses, pterygopalatine fossa and apex of the
What is optical coherence tomography? What are its advantages?What is optical coherence tomography? What are its advantages?
Optical coherence tomography (OCT) is relatively new optical imaging modality that allows high resolution, cross sectional imaging of tissue microstructure. OCT can image c an axial resolution of 1-15 mm
What is contact endoscopy? How is it done? Describe the normal appearance of larynx by contact endoscopy?What is contact endoscopy? How is it done? Describe the normal appearance of larynx by contact endoscopy?
It represent the new phase in the development of endoscopy. Contact endoscopy is a new method for studying disease of the head and neck which clearly shows the cell morphology
What is photodynamic therapy? What is its mechanism of action? List ENT disease where this modality of treatment is applicable?What is photodynamic therapy? What is its mechanism of action? List ENT disease where this modality of treatment is applicable?
Photodynamic therapy (PDT) is a subset of photo-chemotherapy where in addition to an administration of drug and application of light, oxygen is required to complete the process. Th administrated of
