Wilfred C. G. Peh

Filiform polyposis in tuberculosis of the colon

Extensive filiform polyps are demonstrated on a barium enema in a young Chinese woman with tuberculosis of the colon. All previously reported cases of polyposis occurred with either ulcerative colitis or Crohns disease.

Multiple Bilateral Giant Fibroadenomas Associated with Cyclosporine a Therapy in a Renal Transplant Recipient

A 31-year-old woman developed a right breast mass following cyclosporine A therapy after a renal transplant. Several large breast masses continued to grow bilaterally. Mammography and ultrasonography showed features of giant fibroadenomas. The diagnosis was confirmed by biopsy of one of the masses. Awareness of the association between cyclosporine A therapy and fibroadenoma development in renal transplant recipients is highlighted.

Primary bone tumors of adulthood

Imaging plays a crucial role in the evaluation of primary bone tumors in adults. Initial radiographic evaluation is indicated in all cases with suspected primary bone tumors. Radiographs are useful for providing the diagnosis, a short list of differential diagnosis or at least indicating the degree of aggressiveness of the lesion. More detailed information about the lesion, such as cortical destruction or local spread, can be obtained using cross-sectional imaging techniques such as computed tomography and magnetic resonance imaging. This article discusses the characteristic features of the more common primary bone tumors of adulthood, and also the pre-treatment evaluation and staging of these lesions using imaging techniques.

Imaging of finger joints in a whole-body MR system using a simple and low-cost solenoidal coil

This work considers the design and operation of a solenoid radiofrequency (RF) coil for magnetic resonance (MR) mini‐imaging of finger joints using a whole‐body system. The considerations were focused on the requirements of high sensitivity, easy patient access, and cost‐effectiveness. The proposed design is a short, two‐turn solenoidal coil that accomplishes high spatial uniformity over a 2‐cm region of interest (ROI). The coil resembles an oversized ring, and easily fits fingers that are spread. An experimental demonstration of the proposed approach is given by imaging the proximal interphalangeal joint in healthy volunteers using a 2.5‐cm field of view (FOV). Spin‐echo and gradient‐recalled‐echo T1‐weighted sequences, and a 3D spoiled‐gradient‐echo sequence were used. J. Magn. Reson. Imaging 2001;14:800–802.