Cross-sectional imaging of mimics of inflammatory bowel disease: not everything is Crohn's disease or ulcerative colitis.

Acute and chronic bowel pathologies can often be mistaken for manifestations of inflammatory bowel disease (IBD), and there are many entities with imaging and clinical features that overlap with IBD, making diagnosis difficult. We describe multiple inflammatory, infectious, neoplastic, and vascular entities with imaging and clinical features that may mimic IBD, and highlight differentiating features to assist in diagnosis.

Metaplastic carcinoma with osteosarcomatous differentiation in the breast: Case report.

Metaplastic breast carcinoma is rare and may present as a highly aggressive subtype of breast cancer. In this case report of metastatic metaplastic breast carcinoma with osteosarcomatous differentiation in a female patient previously treated for invasive ductal carcinoma, we describe the new presentation of a palpable mass with associated calcifications on imaging near the site of prior partial mastectomy. This article will detail the clinical presentation, imaging findings, histopathology, and clinical course following treatment of our case.

Synchronous and metachronous thyroid cancer, breast cancer, and melanoma in a premenopausal patient with Cowden syndrome.

Cowden syndrome is a rare autosomal dominant genetic disorder characterized by a germline mutation in the phosphatase and tensin homolog gene, leading to multiple hamartomas, neurodevelopmental disorders, and an increased lifetime risk of multiple cancers. Malignancy is the most common cause of mortality in Cowden syndrome, with breast cancer being the most common malignancy encountered in females with the disorder. Screening guidelines for this population should address this risk at an early age.