Epithelioid angiosarcoma arising in schwannoma of the kidney: report of the first case and review of the literature.

Background: Schwannoma and angiosarcoma are infrequent pathologies that have been rarely reported in the kidney. Angiosarcoma is an uncommon malignant tumor presenting a recognizable vascular differentiation. It can develop in any site but the most common locations include the skin, soft tissues, breast, bone, liver, and spleen while renal localization has been very rarely reported in the literature.

Fibrous Variant of Hashimoto's Thyroiditis as a Diagnostic Pitfall in Thyroid Pathology.

Fibrous variant of Hashimoto's thyroiditis is a rare condition occurring in about 10% cases, mainly middle age people. It is characterized by an extensive fibrous proliferation without extension into the surrounding structures. A 55-year-old female was referred to our department for an unexplained onset of cervical discomfort.

Ultrasound-guided laser thermal ablation in the treatment of autonomous hyperfunctioning thyroid nodules and compressive nontoxic nodular goiter.

Objective: Percutaneous laser thermal ablation (LTA) has been applied in several tumors. In this study we evaluated the safety and long-term efficacy of LTA in the treatment of benign thyroid nodules.

Design And Patients: Seven patients with autonomous hyperfunctioning thyroid nodule (group A) and five patients with compressive nodular goiter (group B) were treated with LTA.

Usefulness of power Doppler in the diagnostic management of hypoechoic thyroid nodules.

Objective: The usefulness of power Doppler (PD), a new color Doppler ultrasonography technique, namely in the diagnosis and management of hypoechoic thyroid nodules in comparison with color Doppler (CD) is investigated in this study. Patients and methods: 157 hypoechoic thyroid nodules were studied by CD and PD. The distribution of vascular patterns was compared with the results obtained at cytology and/or histology.