Malignant Epithelioid Mesothelioma of the Tunica Vaginalis Testis Presenting as Hydrocele in a Kidney Transplant Recipient.

Mesotheliomas of the tunica vaginalis testis are rare malignant tumors that can present as a scrotal mass or hydrocele. These tumors are typically aggressive with high rates of recurrence and metastasis. Suspected risk factors for malignant mesothelioma include asbestos exposure, chronic inflammation, trauma, and persistent hydrocele.

The new seventh edition American Joint Committee on Cancer staging of cutaneous non-melanoma skin cancer: a critical review.

The seventh edition of the American Joint Committee on Cancer (AJCC) Cancer Staging Manual includes a major revision of the staging protocol for cutaneous carcinomas. There are several significant improvements to the Tumor, Nodes, and Metastases (TNM) staging system, including consideration of high-risk factors within the primary T grade, a decrease in the tumor size threshold from 5 cm to 2 cm, improved stratification of patient lymph node status, as well as exclusion of Merkel cell carcinomas from the staging system for squamous cell carcinoma (SCC) and other cutaneous carcinomas. However, some important variables in cutaneous SCC were excluded from consideration.