A 35-year-old lady the presented with a 6-month painless fluctuant, non-transilluminant swelling with a thin watery discharge. Clinical diagnosis is?
High-Yield Explanation
Among the given options - discharge can only be seen with the TB which has characteristic undermined edges, which can be identified easily from the given image. The branchial fistula may, however have discharge but around the anterior border of SCM and doesn't have undermined edges. Lymphoma has a lump, anorexia, weight loss but no discharge