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Biomedical subjects

A D Quinn

Publications and source records attributed to A D Quinn.

7 recordsLinked to original sources

Rhabdomyoma of prostate.

An asymptomatic nineteen-year-old white man presented with a markedly enlarged and indurated prostate. Urologic evaluation including cystoscopy, prostatic ultrasound, pelvic computerized tomography (CT) scan, and pelvic nuclear magnetic resonance imaging revealed a prostatic mass impinging on the bladder. Transrectal biopsies returned the pathologic diagnosis of rhabdomyomatous hamartoma. We report the first case in the English literature of extracardiac rhabdomyoma found in the male genitourinary tract.

Adult

Genitourinary involvement of systemic sarcoidosis confined to testicle.

We report on a patient with systemic sarcoidosis who presented with a lesion of the genitourinary tract confined to the testicle. Clinically evident sarcoidosis of the testicle has been identified in few instances. Several recommendations in evaluating such lesions have been offered. A consensus on treatment is not yet defined. The therapeutic options are presented and the literature is reviewed.

Adult

Proximal extrusion of semirigid penile prosthesis.

We present an unusual case of proximal extrusion of a semirigid penile prosthesis into the gluteal subcutaneous tissue. The possible causes, prevention, and treatment options of this uncommon complication are discussed.

Aged

Percutaneous nephrostomy for treatment of hydronephrosis of pregnancy.

Hydronephrosis of pregnancy is a common phenomenon that rarely requires invasive intervention. We describe a young woman with markedly obstructive hydronephrosis of pregnancy causing forniceal extravasation who was treated successfully by percutaneous nephrostomy. The rationale of such intervention and its advantages over retrograde ureteral catheterization or stenting are discussed.

Adult

Postoperative urinary retention. Guidelines and an algorithm.

Postoperative urinary retention is a common problem after surgery. Prevention includes obtaining a preoperative history and physical, having the patient void just before surgery, avoiding overhydration, and encouraging micturition soon after surgery. Management requires sterile catheterization, when indicated, to drain the urinary bladder completely. Urine cultures must be done when indwelling catheters are used. Antibiotics may be necessary.

Algorithms

Idiopathic segmental infarction of the greater omentum. Report of a case mimicking appendicitis.

Idiopathic segmental infarction of the greater omentum seldom enters into the differential diagnosis of acute abdominal pain, and diagnosis is usually not made until laparotomy. A preoperative clue to the diagnosis may be the lack of systemic gastrointestinal symptoms in the presence of impressive abdominal findings. Intraoperative clues are serosanguineous peritoneal fluid but normal appendix, distal small bowel, and mesentery. In this setting, careful examination of the omentum through the initial incision is recommended. Once identified, the infarcted omentum should be completely excised to prevent formation of adhesions and possible sepsis. In the case reported here, the serendipitous discovery of edematous omentum prompted a thorough--but technically difficult--exploration of the greater omentum, which eventually led to the correct diagnosis.

Adult

Gd-DTPA: an alternative contrast medium for CT.

OBJECTIVE: The purpose of this study was to demonstrate that gadolinium-diethylenetriamine pentaacetic acid (Gd-DTPA) could be used as a contrast medium in CT as an alternative to iodine-based compounds. MATERIALS AND METHODS: Solutions of different concentrations of Gd-DTPA and iopromide were scanned in a tissue equivalent phantom and it was shown that Gd-DTPA caused 2.5 times the attenuation of an equimolar solution of iopromide. From these in vitro studies an in vivo dose of 0.5 mmol/kg Gd-DTPA was calculated to be equivalent to 50 ml iopromide 300. RESULTS: Pre- and postenhancement CT was performed in a volunteer using Gd-DTPA intravenously, and adequate enhancement occurred in intracranial vessels. CONCLUSION: Gd-DTPA can be used to provide enhancement during CT and might be of value in iodine-sensitive patients.

Brain