A member asked:

Sore lump on skull? size of a dime on the back of my head but on the hard bone behind my left ear but not near the ear, its on my head.

2 doctors weighed in across 2 answers
Dr. Adam King answered

Specializes in Internal Medicine and Pediatrics

Lymph node.: It sounds like a lymph node. These can pop up for many reasons. If it sticks around for more than 5 days, have a medical professional officially evaluate you.

Answered 3/20/2020

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Pilar Cyst: Pilar cysts are common, occurring in 5-10% of the population. Greater than 90% occur on the scalp, where pilar cysts are the most common cutaneous cyst. Pilar cysts are the second most frequent type of cyst on the head and neck. Pilar cysts are almost always benign, malignant transformation being extremely rare. Pilar cysts may be sporadic or may be autosomal dominantly inherited.

Answered 9/17/2019

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