Growth over Pinna
The commonest growth over the pinna would be the keloid formation.
Keloid is a disorder where there is an overgrowth of the scar tissue which is beyond the boundary of the scar. Keloid formation started with skin injury over the pinna or lobule of the ear. The overgrowth of granulation tissue over the wound which later replaced by collagen scar tissue. Keloid usually appears firm or rubbery and it is usually pink to in brownish colour. It might cause severe itchiness and mild pain over the keloid mass.
Treatment usually depend on the size of the keloid, small and moderate size keloid might be able to control with serial kenacort injection. Meanwhile a larger keloid might need an intralesional excision to reduce the risk of recurrent. Post operative kenacort injection might also reduced the risk of recurrent of keloid formation.
Pinna Wart is less common but excision of the lesion would be a better option in comparison to keloid as the risk of recurrent is much lower.
Seroma of pinna is usually due to trauma to the pinna where there is friction effect of skin over the cartilage and causing the accumulation of serous fluid under the skin. This condition would usually persist even after aspiration and even incision and drainage. The treatment should include the compression of the skin to the underlying cartilage in order for the skin to be draped nicely over the cartilage to prevent any cavity or space between the cartilage and skin. Button stitch or sandwich stitching to compress the skin to the underlying cartilage should be followed after the aspiration or incision and drainage to prevent recurrent.