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Tumors of PNS

Question
5 out of 10
 

Most common malignancy in maxillary antrum is: [DNB Dec 2010]



A Mucoepidermoid Carcinoma

B Adeno cystic Ca

C Adenocarcinoma

D Squamous cell Ca

Ans. D Squamous cell A Ref. Dhingra 5th/ed pp 219,220, 6th/ed p 205

More than 80% of the malignant tumors of paransal sinus and of nose are of squamous cell variety. Rest are Adenocarcinoma, Adenoid cystic carcinoma, Melanoma and various types of sarcomas.

1. Inverted papiloma:

a. Is common in children

b. Arises from lateral wall

c. Always benign

d. Can be premalignant

e. Causes epistaxis

f. Recurrence is rare

2. True about inverted papilloma:

a. Arises mainly from nasal septum

b. Common in children

c. Risk of malignancy

d. Postoperative radiotherapy useful

e. Also known as Scheiderian papilloma

3. Inverted papilloma is characterized by all except:

a. Also called as Schneiderian papilloma

b. Seen more often in females

c. Presents with epistaxis and nasal obstruction

d. Originates from lateral wall of nose

4. Common about tumors of PNS and Nasal Ca:

a. Squamous cell Ca is the MC type

b. Adeno Ca is the MC type

c. Melanoma can occur

5. Most common malignancy in maxillary antrum is: [pG193J

a. Mucoepidermoid Carcinoma

b. Adeno cystic Ca

c. Adenocarcinoma

d. Squamous cell Ca

Maxillary sinus is the most frequently involved sinus. Other sites in decreasing order are nasal cavity, ethmoid sinuses, frontal and sphenoid sinus.

Tumors of PNS Flashcard List

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