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Definition:-

Malignant squamous cell carcinoma is a tumor of external auditory canal and middle ear.

About disease:-

-chronic suppurative otitis media and irradiation is the aetiology for malignant squamous cell carcinoma.

-malignant squamous cell carcinoma is a rare disease, affecting males more than females.

Symptoms:

1. Discharge which is blood stained, foul smelling ,profuse.
2. Deafness and tinnitus.
3. Deep seated pain.
4. Vertigo.
5. Facial paralysis due to erosion.

Signs:

1. Granulation and polypi.
2. Skin ulceration and parotid affection.
3. Last four cranial nerve palsies.

Investigations:

1. X_ray and CT.
2. Biopsy.
3. Audiogram.
4. Metastatic work up.

Treatment:-

A-Is mainly by surgical resection +postoperative radiotherapy + RND.

B-palliative radiotherapy.