Breast acinic cell carcinoma with weak progesterone receptor expression: a case report and literature review.

Rationale: Acinic cell carcinoma (AcCC) of the breast is an extremely rare malignant epithelial tumor characterized by acini cell differentiation, clinical low-grade malignancy, and a molecular triple-negative subtype.

Patient Concern: A 47-year-old female presented with a 1-month history of a painless mass in her right breast.

Diagnosis: Ultrasound imaging, mammography and magnetic resonance imaging revealed a lesion, approximately 3.

The diagnosis and treatment of 56 cases of breast hamartoma: a single-center analysis and a review of the literature.

Introduction: To analyze and summarize the clinical and pathological features of breast hamartoma to enhance clinicians' awareness of this rare and benign lesion of the breast.

Methods: We retrospectively described the clinical data, imaging results, and pathological findings of 56 patients with breast hamartoma who underwent surgical treatment at the First Hospital of Jilin University between January 2005 and December 2020, and summarized the features. Additionally, a literature review was conducted using the PubMed database for clinical reports on breast hamartoma and analyzed them.

[Characteristics of accumulated temperature demand and its utilization of maize under different ecological conditions in northeast China].

To understand the accumulated temperature (ACT) demand of maize for its normal maturation among years and regions as well as the use efficiency of local ACT, a group of work-net field experiments was conducted at 55 sites in 28 regions of Northeast China spring maize planting area (40 degrees 07'-48 degrees 08' N) in 2007-2009, taking an eurychoric maize variety Zhengdan 958 as test object. The meteorological conditions in the area had large difference. In the same regions, the active accumulated temperature above 10 degrees C in whole corn growth season (ACT10 for short) demand of Zhengdan 958 for completing its whole growth and development process had little difference among different years (P > 0.