Effect of vitamin A against methotrexate-induced damage to the small intestine in rats.

Objective: The aim of the present study was to examine whether or not the administration of vitamin A (VA) protects against methotrexate (MTX)-induced damage to small intestinal epithelium.

Materials And Methods: Sixty-three male Wistar albino rats, 10-12 weeks old, weighing 240-280 g, were divided into three groups: (1) controls, (2) rats receiving MTX treatment alone, and (3) rats receiving MTX plus VA treatment. A single dose of MTX (20 mg/kg MTX in 20 ml vehicle) was administered to the rats intraperitoneally.

Notalgia paresthetica with a significant increase in the number of intradermal nerves.

Notalgia paresthetica is an isolated mononeuropathy involving the skin over or near the scapula. The cause remains unknown. We histologically observed a significant increase in the number of dermal nerves in a case of notalgia paresthetica.

Hippocampal volume in schizophrenia and its relationship with risperidone treatment: a stereological study.

The purpose of this study was to assess the significance of the hippocampal volume differences and its relation with risperidone treatment in schizophrenia. In schizophrenic patients who were on risperidone treatment (n = 11) and in healthy volunteers (n = 11), volumes of the hippocampi were estimated using magnetic resonance images (MRIs). A detailed systematic series of coronal MRIs of the entire brain (3 mm thickness, T(1)-weighted, TR/TE 400/10 ms) was obtained for each subject.

Coexistence of tumor of the follicular infundibulum with an unusual trichilemmal tumor.

Tumor of the follicular infundibulum (TFI) is a rare epithelial tumor, and its histogenesis is still somewhat debatable. The diagnosis of TFI cannot currently be made before biopsy, and it is most often misdiagnosed as basal cell carcinoma (BCC). A 78-year-old woman presented to the dermatology clinic with a slightly erythematous nodule surrounded by fine telangiectasia on her right temple.