PMC5220411_01
Nonpalpable hyperdense, lobular, and well-circumscribed nodule in ectopic axillary breast tissue in digital mammographic study.
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fig1
Data System (BI-RADS) 4 due to the presence of a hyperdense, lobular, and well-circumscribed nodule, suggested as a suspicious lymph node (Figure 1). By ultrasound (US) imaging, hypoechoic nodule measuring 1.26 x 1 cm was identified, with indistinct microlobular margins and without vascularity identified by Doppler (Figure 2). During physical exploration, there was only the presence of bilateral ectopic axillary breast tissue with a volume of 8 x 8 cm, without palpable lumps in the patient's mammary glands or in the ectopic tissue.
Hypoechoic nodule with indistinct microlobular margins and without vascularity in US study.
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fig2
Data System (BI-RADS) 4 due to the presence of a hyperdense, lobular, and well-circumscribed nodule, suggested as a suspicious lymph node (Figure 1). By ultrasound (US) imaging, hypoechoic nodule measuring 1.26 x 1 cm was identified, with indistinct microlobular margins and without vascularity identified by Doppler (Figure 2). During physical exploration, there was only the presence of bilateral ectopic axillary breast tissue with a volume of 8 x 8 cm, without palpable lumps in the patient's mammary glands or in the ectopic tissue.
Wide-needle localized excision (a) with intraoperative radiography of surgical specimen (b).
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fig3
The patient underwent wide-needle localized excision with intraoperative radiography of surgical specimen (Figures 3(a) and 3(b)) and evaluation of tumor margins by the pathologist.
A 1.8 x 1.2 cm round multinodular soft mass, with well-circumscribed lobulated contours, focal with irregular borders.
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fig4
The gross description reported a round multinodular soft mass, 1.8 x 1.2 cm in dimension; tumor demonstrated a white cut surface and well-circumscribed lobulated contours, focal with irregular borders (Figure 4).
(a, b) H&E x10 intracanalicular pattern forming cleft-like spaces; the stroma is mildly atypical with one mitosis per 10 high-power field.
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Epithelial and benign glandular elements with florid hyperplasia were present (Figures 5(a) and 5(b)).