[Mediastinal Castleman's disease: report of one case].

Castleman's disease is an uncommon lymphoproliferative disorder which can be unicentric or multicentric. Hialine vascular variant is the most common pathologic form, which is usually unicentric and presenting as mediastinal tumors. We report a 31-year-old female with a history of retrosternal pain.

[Bone hydatidosis: report of five patients and review of the literature].

Bone location of hydatid cysts occurs in 0.5 to 3% of all cases of hydatidosis. The most common bones involved are spine, long bones and pelvis.

[Diagnostic value of frozen section biopsy during surgery for breast lesions or neoplasms].

Background: During the surgical treatment of breast neoplasms (benign or malignant), frozen section biopsy is frequently requested to assess the kind of lesion and determine the surgical margins.

Aim: To assess the diagnostic yield of frozen section breast biopsy.

Material And Methods: AH the pathological reports of frozen section biopsies and definitive biopsies of 337 women aged 26 to 88 years, operated for suspected breast neoplasms between 2002 and 2006, were reviewed.