Rare Lymphoma of the Breast: A Case Report.

Lymphoma of the breast is a rare malignancy of the breast lymphoid tissue. It can present as either a primary or a secondary malignancy due to metastasis from a systemic disease. Secondary breast lymphoma (SBL) is one of the most common malignancies to metastasize to the breast.

Pseudoangiomatous stromal hyperplasia in a healthy young adult male.

This case report describes the occurrence of a rapidly enlarging pseudoangiomatous stromal hyperplasia (PASH) tumor in a 20-year-old male patient. The diagnosis was made via tomosynthesis and ultrasound-guided biopsy with pathological correlation consistent with PASH. The patient's case was discussed, and he was recommended to undergo surgical resection of the mass to alleviate symptoms due to its large size.

Hematologic malignancies of the breast: report of three cases.

Involvement of the breast by hematologic malignancies is rare and remains an important diagnostic challenge for radiologists. We present the cases of 3 patients diagnosed with hematologic breast malignancies at our institutions. All cases were diagnosed by breast core biopsies, which revealed 2 cases of diffuse B-cell lymphoma and one case of myeloid sarcoma associated with acute myeloblastic leukemia (AML).

Breast T-Lymphoblastic Lymphoma Presenting as a Single Mass in a Young Female with Family History of Breast Cancer.

Breast involvement by lymphoma is rare, constituting ≤0.5% of all breast malignancies, with T-cell lymphomas, comprising 2.5 to 7.

Challenging Biopsy of a Benign Breast Lesion With Malignancy Features: Cystic Apocrine Metaplasia.

Apocrine metaplasia is a benign epithelial change that primarily occurs in the terminal lobule, where the normal cuboidal epithelium is replaced by secretory apocrine cells with abundant eosinophilic cytoplasm. Even with the most recent advances in imaging modalities, radiographic findings can sometimes be equivocal in the characterization of breast lesions, leading to the necessity of tissue sampling. We report a challenging case of biopsy-proven cystic apocrine metaplasia that presented in the posterior depth with initially suspicious imaging findings concerning for malignancy.

Stromal Fibrosis of the Breast and the Associated Radiological Findings.

This case report follows a 42-year-old female patient who underwent a routine screening mammogram. The patient was found to have a 50 mm benign subareolar mass in the right breast. However, because benign imaging findings do not preclude malignancy, the patient was recommended to undergo a biopsy for confirmation.

Fibroepithelial Lesion Initially Believed to Be Fibroadenoma, but Interval Growth Consistent With Phyllodes Tumor.

Fibroepithelial lesions of the breast are commonly encountered tumors comprised of stromal and epithelial components. Fibroadenoma and phyllodes tumor are both fibroepithelial lesions, but their management differs. Phyllodes tumor requires surgical excision, whereas fibroadenoma requires no further workup.

A Case of Male Breast Cancer Patient with CHEK2*1100delC Mutation.

Male breast cancer (MBC) is a rare disease that accounts for less than one percent of all breast cancers. The association between and mutations and MBC has been well-established; recent data suggest that CHEK2 1100delC heterozygosity is also associated with an increased risk of MBC. Herein, we present the case of a 47-year-old male who was initially diagnosed with bilateral symmetric gynecomastia on a diagnostic mammogram performed for right breast palpable lump.

Spontaneously Disappearing Calcifications in the Breast: A Rare Instance Where a Decrease in Size on Mammogram Is Not Good.

Spontaneously resolving breast calcification on mammography is a rare radiologic finding. This phenomenon is defined by a decrease in number and/or prominence of breast calcifications on mammogram when compared to prior imaging. The significance of resolving breast calcifications remains unclear, but they have been reported in cases of malignancy.

Pseudoangiomatous Stromal Hyperplasia of the Breast: Multimodality Review With Pathologic Correlation.

Pseudoangiomatous stromal hyperplasia (PASH) is a rare benign breast condition. PASH is thought to be hormonally responsive, and it is usually identified in premenopausal and perimenopausal women. PASH may also be seen in postmenopausal woman on hormone replacement therapy (HRT).

Unusual Benign Tumors of the Breast.

The purpose of this article is to describe the imaging characteristics of a variety of benign breast tumors that may be encountered in daily practice, in order to formulate an appropriate differential diagnosis and to establish concordance between the imaging and the pathologic findings, and to assist the clinician with appropriate management.