Ultrasonography accurately evaluates the dimension and shape of the pilonidal sinus . Clinics, [S. l.], v. 64, n. 3, p. 189–192, 2009. DOI: 10.1590/S1807-59322009000300007. Disponível em: https://www.revistas.usp.br/clinics/article/view/17992.. Acesso em: 4 may. 2024.