### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hello, I have developed a lump at the base of my skull. It seems to go from about the center of my neck, across the base of my skull, over behind my right ear just behind where the earpiece of my glasses. It is itchty, yet very sensitive to the touch (more so in certain spots) there are two places goin from the lump up the back of my head that are about 1 1/2 inches long that are very painful yet dont seem to be swollen just very painful. I havent been very hungry, my balance seems to be somewhat off, I get dizzy, 2 days ago my daughter had to drive me home ( while sitting in the drive threw at the bank the building started swayin back and forth) I feel very tired, and have been sweatting a lot. My daughter looked closely with a bright flashlight to see if perhaps I had been biten by something and she could not find any discoloration.

### output:

HI, Welcome to Chat Doctor. Based on the facts of your query, you seem to suffer from-Acute Lymphadenitis at base of skull and behind the right ear and is mostly due to Acute mastitis with Mastoid Abscess with vestibules causing the dizziness with omitting with a lot of sweating. As though itchy, the soft lump at the base of the skull which is very sensitive and painful to touch with 2 joining lump feel, indicates the mastoid abscess spreading to base of skull which is very nearby side of mastoid destroyed air cells and which could be detected by CT Study of the mastoid and the base of the skull region. I would suggest getting the Second Opinion from ENT Surgeon and Neurosurgeon to treat this case after the CT mastoid and skull study with MRI with gadolinium contrast study, if need be. Possibility of -Accompanied- Spondylitis needs to be studied, as a cause of dizziness with omitting spell you had 2 days back. Hope this would resolve the query of the cause of the itchy lump at the base of your skull and would help you to plan treatment with your doctors in this very complicated and challenging case of skull base lump of yours. Welcome for any further query in this regard Will appreciate writing your feedback review comments, to help the needy patients like you at Chat Doctor. Good Day!! Chat Doctor. S. Genl-CVTS