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Figure 1: Diagrammatic representation of hemicrania continua and its differential diagnosis. (a) Components of pain in hemicrania continua. (b) Differential diagnosis – if you focus on exacerbations only and not consider background pain. (c) Differential diagnosis of HC – if you focus on background pain and ignore exacerbations

Figure 1: Diagrammatic representation of hemicrania continua and its differential diagnosis. (a) Components of pain in hemicrania continua. (b) Differential diagnosis – if you focus on exacerbations only and not consider background pain. (c) Differential diagnosis of HC – if you focus on background pain and ignore exacerbations