Biomedical subjects
Publications and source records attributed to J W Timmons.
Abrupt narrowing of the male anterior urethra has been increasingly observed during voiding cystourethrography due to extrinsic pressure from a urinal. The true nature of this narrowing must be recognized to avoid misinterpretation.
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In the past three years we have treated 5 cases of penile strangulation secondary to entrapment by human hair in the coronal groove. All patients had been circumcised and were between fourteen months and five years of age. Total urethral transection occurred in 2 children. Their presentation and our method of management are discussed.
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Gram-negative organisms are not the most prevalent bacterial species found in renal abscesses. We postulate an ascending pathway for establishment of gram-negative abscesses. Voiding cystourethrography should be used in search of reflux. Surgical treatment remains the standard but early diagnosis may increase the effectiveness of parenteral antibiotics as definitive therapy.
Of 30 children treated for embryonal rhabdomyosarcoma the primary site of tumor was the bladder in 14 cases (9 boys and 5 girls) and the prostate in 16 cases. The mean age at diagnosis was 3 years in patients with bladder sarcoma and 6.5 years in patients with sarcoma of the prostate. Over-all survival rate has been 23 per cent--5 children with rhabdomyosarcoma of the bladder and 2 with rhadbomyosarcoma of the porstate are alive from 1 1/2 to 23 years postoperatively. Aggressive coordinated treatment with surgery, radiotherapy and cyclic combination chemotherapy is recommended.
Records of 72 consecutive patients with caliceal diverticula, representing an incidence of 4.5 per 1,000 excretory urograms, were studied. Of these 72 patients, 39 per cent had a history of recurrent infections and an equal number had stone-containing diverticula. However, only 17 per cent had roentgenographic evidence of pyelonephritis. Similarity of incidence in children and adults, as well as a paucity of renal infection and scarring, supports an embryologic etiology. In our experience the need for surgical intervention is much less than is suggested in the literature.