<human>: 20 year old , only history is high cholesterol , dermiod cyst, removed at age 16 months. I have a lump size of 2 inch on right side of neck, at my colar area. red with a pulse in it, at time, the same side of my neck, is tender to touch, lump is hard in areas.
<bot>: Hi! Thanks for writing to us ! If I were your doctor and had you presented to me with this problem of the hard and tender red lump with pulses on the side of your neck , I would like to consider following possibilities, as per my experience of ultrasound, CT scan and needle biopsies:1. Abscess2. Infected lymph node could be tuberculosis3. Infected benign cysts like sebaceous cyst, bronchial cyst, hypoglossal cyst4. Hemangioma or infected lymphatic cystTherefore, redness and pulsation means infection, and you might need urgent antibiotic therapy; please see a surgeon today for a direct examination and proper line of management...