Deep Postanal Abscess With Sacrococcygeal Osteomyelitis: A Case Report.

Deep postanal abscesses (DPAs) are uncommon but clinically significant conditions that, if left untreated, can result in severe septic complications. This case report presents a rare instance of sacrococcygeal osteomyelitis as a complication of a long-standing DPA. The patient underwent surgical drainage and seton placement, leading to complete resolution of both the abscess and the osteomyelitis. This case underscores the importance of prompt surgical intervention in the management of DPAs and highlights the potential for rare but serious complications such as osteomyelitis.