Computed tomography and ultrasound appearance of bladder malacoplakia.

The computed tomography and ultrasound findings of two patients with malacoplakia of the bladder, both at the time of initial diagnosis and following response to treatment, are presented. Because bladder wall involvement is demonstrated by these modalities in female patients with repeated episodes of urinary tract infection, this entity should be entertained in the differential diagnosis.

Computed tomography and ultrasound appearance of liver disease in secondary syphilis.

Liver disease occurring as a manifestation of secondary syphilis is unusual, and this association is not readily recognized or considered in the differential diagnosis of obscure hepatic disease, thereby causing delay in treatment. We describe a case of liver involvement in secondary syphilis with computed-tomography and ultrasound findings. This entity should be considered in patients with hepatomegaly coexisting with the clinical stigmata of secondary syphilis, as treatment with penicillin results in rapid improvement in both the clinical and biochemical findings.

Computed tomography and ultrasound demonstration of squamous cell carcinoma of the kidney.

The computed tomography and ultrasound appearance of a case of squamous cell carcinoma of the kidney is reported and the relevant clinical and urographic findings in this rare entity are reviewed.

CT diagnosis of emphysematous pyelonephritis.

Emphysematous pyelonephritis is a rare but frequently fatal complication of renal infection in the diabetic patient. The diagnosis is usually only made roentgenographically. We present a patient in whom the initial plain abdominal film was normal and renal sonogram was nondiagnostic. The correct diagnosis was made only on the subsequent CT scan.

Focal fatty liver lesions in alcoholic liver disease: a broadened spectrum of CT appearances.

The CT examinations of 26 consecutive alcoholic patients with focal fatty infiltration of the liver were analyzed. Five different patterns of focal fatty infiltration were noted. In most alcoholic patients these appearances present no diagnostic problem and further confirmation can be obtained by repeating the CT scan within 1-2 weeks to see if interval resolution occurs following enforced abstinence. In select instances, more invasive and definitive procedures such as superselective angiography or liver biopsy may be necessary to differentiate these findings from other more serious diseases they may closely resemble, such as primary or secondary liver neoplasms.

Ultrasonographic differentiation of cervical abortion from cervical pregnancy.

Cervical abortion is a spontaneous abortion of a normal intrauterine pregnancy into the cervical canal where the abortus is retained by a closed external os, causing distention of the cervical canal. This entity closely simulates ectopic cervical pregnancy clinically. The ultrasonic findings in four patients with cervical abortion are described and these could alert the physician to the possibility of this condition.

Increased renal parenchymal accumulation of Tc-99m HDP in kidney contusion.

Unilateral focal areas of intense, increased renal uptake of Tc-99m oxidronate sodium (technetium-99m HDP) were incidentally detected in the bone scan of a female patient who subsequently gave a history of recent trauma to her flank. Increased renal parenchymal uptake of Tc-99m HDP in this patient was thought to be due to kidney contusion. The case is interesting in itself and for its possible implications regarding the use of radio-labeled phosphate compounds for detection of renal contusion.

Assessment of tissue viability in frostbite by 99mTc pertechnetate scintigraphy.

Technetium-99m pertechnetate scintigraphy was performed in the involved extremities of six patients with severe frostbite of the hands (six cases) and feet (one case). There was good correlation between the scintigraphic findings and the extent of deep tissue ultimately requiring surgical resection. Technetium-99m pertechnetate imaging distinguishes viable from dead tissue in frostbite in a simple, noninvasive manner, and findings are easy to interpret. A persistent perfusion defect is seen in nonviable tissue.

CT diagnosis of adenocarcinoma of the appendix.

We report the CT findings in a patient with adenocarcinoma of the appendix. Previously reported cases are reviewed, and a CT appearance which is suggestive of adenocarcinoma of the appendix is presented.

Portal vein thrombosis in hepatocellular carcinoma demonstrated by ultrasound.

3 patients with histologically proven hepatocellular carcinoma in whom ultrasound demonstrated portal vein thrombosis are presented. Sonography is a simple, noninvasive method of screening patients with primary hepatocellular carcinoma for the presence of portal vein thrombosis.