Axillary and vulval breasts associated with pregnancy.

Area of Science:

• Reproductive Endocrinology
• Human Anatomy
• Medical Case Reports

Background:

• Accessory breast tissue, or polymastia, is a congenital anomaly resulting from the incomplete regression of the embryonic mammary ridge.
• While commonly found along the milk lines (axillary and inframammary regions), vulvar accessory breast tissue is exceptionally rare.
• Hormonal fluctuations during pregnancy and lactation typically cause significant changes in accessory breast tissue, mirroring those in orthotopic breasts.

Observation:

• This case report details a patient presenting with accessory breasts located in the vulvar and axillary regions.
• The patient's accessory breast tissue was monitored throughout her pregnancy and postpartum period.
• Visual and physical examination revealed minimal alterations in the size or characteristics of the accessory breasts.

Findings:

• The accessory breasts in both the vulvar and axillary locations exhibited remarkable stability.
• Little to no significant hypertrophy or tenderness was observed during gestation or the puerperium.
• This contrasts with typical physiological changes seen in normal breast tissue or other reported cases of polymastia during pregnancy.

Implications:

• This case suggests that the hormonal responsiveness of accessory breast tissue may vary depending on its location and developmental origin.
• Further research is needed to understand the specific factors influencing the behavior of vulvar and axillary accessory breast tissue during pregnancy.
• Understanding such variations is crucial for accurate diagnosis and management of polymastia, particularly in reproductive-aged individuals.