Actual encounters of the kidney kind: Exploring 48 cases of renal collision tumors through the lens of literature.

Multiple tumors of different lineages merging into a single mass, termed collision tumors, are considered a rare phenomenon in the kidney. Tumor components, or partners, may be malignant (including metastatic disease), borderline, or benign. We report the largest cohort to date of 48 cases.

Penile Myointimoma: A Clinicopathologic Study of 4 Tumors.

Penile myointimoma is a rare, benign tumor occurring within the corpus spongiosum vasculature of the glans penis. Thus far, there have been twenty-three reported tumors in the literature. We present four additional tumors of this unique myointimal proliferation.

Isolated recurrence of ovarian serous adenocarcinoma to adrenal gland.

Objectives: The purpose of this report was to present the diagnosis and management of an unusual case of a woman with ovarian carcinoma who developed an isolated recurrence to the adrenal gland six years after initial diagnosis.

Case: A 79-year-old woman was diagnosed with stage IVa high-grade serous carcinoma of the ovary with malignant pleural effusion in January 2014. She received six cycles of carboplatin and paclitaxel and underwent a total abdominal hysterectomy, bilateral salpingo-oophorectomy, and optimal tumor debulking in May 2014.

Distinguishing Parathyromatosis, Atypical Parathyroid Adenomas, and Parathyroid Carcinomas Utilizing Histologic and Clinical Features.

Parathyromatosis is displaced parathyroid tissue in the neck and mediastinum related to prior surgery. Parathyromatosis can be difficult to distinguish from atypical adenoma and parathyroid carcinoma. The aim of this study is to evaluate clinical and morphologic features that may differentiate parathyromatosis, atypical adenoma, and parathyroid carcinoma.