Pseudoangiomatous Stromal Hyperplasia of the Breast: Mammosonography and Elastography Findings with a Histopathological Correlation

Abstract

Pseudoangiomatous stromal hyperplasia (PASH) is a rare benign mesenchymal proliferative lesion of the breast. In this study, we aimed to show a case of PASH with mammographic and sonographic features, which fulfill the criteria for benign lesions and to define its recently discovered elastography findings. A 49-year-old premenopausal female presented with breast pain in our outpatient surgery clinic. In ultrasound images, a hypoechoic solid mass located at the 3 o'clock position in the periareolar region of the right breast was observed. Due to it was not detected on earlier mammographies, the patient underwent a tru-cut biopsy, although the mass fulfilled the criteria for benign lesions on mammography, ultrasound, and elastography. Elastography is a new technique differentiating between benign and malignant lesions. It is also useful to determine whether a biopsy is necessary or follow-up is sufficient.

Psödoanjiyomatöz stromal hiperplazinin shear dalga elastografi bulguları

“…SE findings for PASH are rather limited. In the literature, strain elastography findings of PASH were recognized in only one case (5). The findings of SWE, which we performed in both cases, have not been reported in the literature yet, and are useful in this respect.…”

Bilateral gigantomastia due to benign breast tumors: a case series and brief review focusing on bilateral diffuse pseudoangiomatous stromal hyperplasia

“…PASH is a rare benign tumor that typically presents as a localized nodular breast mass with slow progression. Incidental PASH changes, including at least one microscopic focus, have been reported in 23% of cases, while nodular PASH has an incidence of 0.4% in breast biopsies [5]. Rapidly growing bilateral diffuse PASH is extremely rare, and even the overall incidence of diffuse PASH has not yet been established.…”