Figure 5From: Clinical characteristics of congenital cervical atresia based on anatomy and ultrasound: a retrospective study of 32 casesType I cervical atresia. (A) The black arrow indicates smooth muscle. The yellow arrow indicates infiltrated lymphocytes. The red arrow indicates hyperplastic vascular and collagen fiber tissue (HE?×?100). (B) The red arrow indicates endometrial glands. The black arrow indicates cervical mucosa (HE?×?100). (C) The red arrow indicates collagen fiber tissue. The black arrow indicates cervical mucosal epithelium (HE?×?40). (D) The red arrow indicates cervical mucosal epithelium (HE?×?400).Back to article page