《耳鼻喉科学 Otolaryngology》课程教学课件（PPT讲稿）nose_11.Neoplasms of nasal cavity and paranasal sinuses

Neoplasms of nasal cavityand paranasal sinuses

Neoplasms of nasal cavity and paranasal sinuses

Neoplasms of Nose andParanasal SinusesVery rare 3%Delay in diagnosis due to similarity tobenign conditionsNasal cavity/2 benign/2 malignantParanasal SinusesMalignant

Neoplasms of Nose and Paranasal Sinuses Very rare 3% Delay in diagnosis due to similarity to benign conditions Nasal cavity ½ benign ½ malignant Paranasal Sinuses Malignant

Neoplasms of Nose andParanasal SinusesMultimodality treatmentOrbital PreservationMinimally invasive surgical techniques

Neoplasms of Nose and Paranasal Sinuses Multimodality treatment Orbital Preservation Minimally invasive surgical techniques

Neoplasms of nasal cavityBoth benign and malignant tumours ofthe nasal cavity are uncommon. Veryoften their separation from tumours ofparanasal sinuses is difficult except inearly stages. In addition to primarytumours, nasal cavity can be invaded bygrowths from paranasal sinuses,neopharynx, cranial or buccal cavity

Neoplasms of nasal cavity Both benign and malignant tumours of the nasal cavity are uncommon. Very often their separation from tumours of paranasal sinuses is difficult except in early stages. In addition to primary tumours, nasal cavity can be invaded by growths from paranasal sinuses, neopharynx, cranial or buccal cavity

Neoplasms of nasal cavityBenign lesions are usually smooth,localised and covered with mucousmembrane. Malignant ones are usuallyfiable, have a granular surface and tendto bleed easily

Neoplasms of nasal cavity Benign lesions are usually smooth, localised and covered with mucous membrane. Malignant ones are usually fiable, have a granular surface and tend to bleed easily

Benign LesionsSquamous papillomaInverted papillomaPleomorphic adenomaSchwannoma and meningiomaHaemangiomaChondromaAngiofibromaIntranasal meningoencephaloceleGliomasNasal dermoid

Benign Lesions Squamous papilloma Inverted papilloma Pleomorphic adenoma Schwannoma and meningioma Haemangioma Chondroma Angiofibroma Intranasal meningoencephalocele Gliomas Nasal dermoid

PapillomaVestibular papillomasSchneiderian papillomas derived fromschneiderian mucosa (squamous)Fungiform: 50%, nasal septumCylindrical: 3%, lateral wall/sinusesInverted: 47%, lateral wall

Papilloma Vestibular papillomas Schneiderian papillomas derived from schneiderian mucosa (squamous) Fungiform: 50%, nasal septum Cylindrical: 3%, lateral wall/sinuses Inverted: 47%, lateral wall

Benign neoplasms1. Squamous papilloma. Verrucous lesionssimilar to skin warts can arise from thenasal vestibule or lower part of nasalseptum. They may be single or multiple,pedunculated or sessile. Treatment is localexcision with cauterisation of the base toprevent recurrence. They can also betreated by cryosurgery or laser

Benign neoplasms 1. Squamous papilloma. Verrucous lesions similar to skin warts can arise from the nasal vestibule or lower part of nasal septum. They may be single or multiple, pedunculated or sessile. Treatment is local excision with cauterisation of the base to prevent recurrence. They can also be treated by cryosurgery or laser

Papilloma(Wart)

Papilloma