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Biomedical subjects

W Sommer

Publications and source records attributed to W Sommer.

83 records · Page 5Linked to original sources
PubMed1983

[Frequency of kidney cyst wall cancer--results of 22,000 ultrasound studies].

In 22 198 sonographic examinations of the epigastric region, the authors identified 759 renal cysts (3.4%) and 165 renal tumours (0.74%). The percentage of incidence of the renal cysts is identical with that found in post-mortem examinations, whereas tumours were distinctly more frequent. Tumours of the cystic wall had been found in 0.5% of all sonographically diagnosed cysts and in 4% of renal cysts examined via fine-needle biopsy. Of the latter cysts (i.e. out of the 4% of cysts diagnosed by fine-needle biopsy), which were associated with tumours, two had been diagnosed as tumour suspects via sonography. Hence, the sonographic absence of abnormal findings in carcinoma of the renal cyst wall is rare. However, cysts diagnosed via sonography which cannot be subjected to fine-needle biopsy, should be rechecked and followed up at regular intervals. If all possible methods of diagnosis are utilised (I.V. urography, sonography, fine-needle biopsy guided by sonography, computed tomography, angiography), successful differential diagnosis of localised pathological conditions of the kidneys can be achieved in 97% of all cases. Patient risk and cost of diagnosis can be kept at a minimum by proceeding in steps as described in the article. Primary surgical exposure of the kidneys in case of a cystic renal process would now appear justified for therapeutic reasons only, not for the purpose of arriving at a diagnosis.

Adenocarcinoma↗
PubMed1979

[Ultrasound-guided needle biopsy of malignant liver cyst (author's transl)].

A liver cyst was detected during a routine ultrasonographic examination. Needle biopsy of the cyst was performed using ultrasound as a guidance device during puncture. Malignant cells could be demonstrated on cytological examination. Needle biopsy of circumscribed lesions of the liver is a low risk procedure, causing no strain for the patient. Needle biopsy should be done, when a hepatic cyst is detected by ultrasound, when there is suspicion of malignancy, and when a parasitic lesion has been excluded.

Aged↗
PubMedDate not supplied

Prognosis for patients treated conservatively for spontaneous intracerebral hematomas.

The long-term clinical and CT-outcome of 53 conservatively treated patients with spontaneous intracerebral hematomas (ICH) was studied in relation to the acute findings. The acute mortality of ICH was 27%. Determinant for the immediate prognosis was the level of consciousness and the volume of the hematoma. The crucial size was 50 ml with a mortality of 90% for hematomas larger and 10% for hematomas smaller than that. Intraventricular hemorrhage was a bad prognostic sign only in the ganglionic-thalamic hematomas. At follow-up at a median of 4 1/2 years after ICH, 30% of the total series had a completely normal neurological examination and 28% had resumed work. Thirteen per cent had minor neurological deficits and 17% had debilitating sequelae. During the follow-up period 7 patients had died, which indicates an excess mortality for ICH survivors. The CT findings at follow-up consisted of low density areas smaller than the original hematomas, focal atrophy, calcifications and porencephalic cysts. In 10% the CT scan revealed no trace of the previous hematoma.

Adolescent↗