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Biomedical subjects

O d'Archambeau

Publications and source records attributed to O d'Archambeau.

10 recordsLinked to original sources
PubMed1998

Insulinoma associated with liver lesions: value of MR imaging.

We report on a middle-aged woman who presented with clinical and biochemical findings of insulinoma. Preoperative evaluation by ultrasound, CT, and angiography located the pancreatic lesion but also revealed two focal liver lesions. The latter were interpreted as metastases. MR imaging with injection of superparamagnetic iron oxide particles not only localized the insulinoma but proved to be the only noninvasive technique capable to exclude presence of liver metastases preoperatively. This reversed management to minimal laparoscopic surgery. Recent literature of preoperative imaging evaluation of insulinoma and focal liver lesions is discussed.

Adult↗
PubMed1997

Imaging of primary tumors and tumor-like conditions of the lumbosacral osseous spine.

Primary tumors of the osseous spine are rare. This article illustrates some aspects of imaging of tumoral pathology of the osseous spine. Plain film and CT scan still remain the initial imaging modalities in the work-up of tumoral pathology of the osseous spine. MR imaging however has proven its potentials in the detection of lesions in areas with superimposing structures which hamper reliable reading of the plain films or in areas with a complex bony anatomy such as the sacrum. MR imaging is exquisite in determining the local extent of tumoral lesions and in defining the relationship to adjacent central nervous system structures. In some tumors or tumor-like lesions, MR imaging allows to make a correct tissue-related diagnosis or to strengthen the diagnosis made on plain film/CT observations. In other case MR imaging only has a role in staging or may have definitely no role at all.

Adult↗
PubMed1994

Bilateral primary synchronous renal cell carcinoma.

We report a case of bilateral primary "synchronous" renal cell carcinoma (RCC) with different differentiation rates. Computed tomography (CT), ultrasonography (US), angiography, and fine needle aspiration biopsy (FNAB) were performed followed by right radical and left partial nephrectomy. Findings on ultrasonography were non-specific, CT scan showed bilateral solid renal mass. On angiography of the right renal artery no tumoral vessels were seen and FNAB yielded a false negative result on the left side. Histological examination revealed a cystic renal cell carcinoma on the right and a multinodular renal cell carcinoma on the left side. We could not find similar report in the current literature.

Aged↗
PubMedDate not supplied

CT diagnosis and differential diagnosis of otodystrophic lesions of the temporal bone.

The purpose of this study was to assess the diagnostic and differential value of high-resolution computed tomography in the evaluation of temporal-bone dystrophies. The study group included 55 patients with osseous abnormalities of the temporal bone in general, and the labyrinthine capsule in particular. In 27 patients the CT scan revealed evidence of otodystrophic lesions. The CT findings in patients with otosclerosis (21 patients), osteogenesis imperfecta (two patients), fibrous dysplasia (one patient), Paget's disease (one patient) and osteopetrosis (two patients) are described. The CT scans of 17 patients revealed secondary osseous lesions due to metastasis (five patients), post-inflammatory changes (10 patients) or labyrinthitis ossificans (two patients). Normal variants and congenital mineralization defects were diagnosed in nine patients, Down's syndrome in two. Our results indicate the importance of high-resolution computed tomography as the primary imaging modality in evaluating osseous lesions of the temporal bone and labyrinth.

Adolescent↗
PubMedDate not supplied

[Role of arteriography in the assessment and treatment of hemorrhagic diseases of the small intestines].

We present the indications and usefulness of visceral angiography for diagnostic and therapy in patients with gastrointestinal haemorrhage. This is based on the results of a retrospective study of 265 angiographies for gastrointestinal bleeding. In fifty one cases an extravasation was seen and in one hundred and four patients a possible etiology for the gastrointestinal hemorrhage was suspected from indirect signs. In 19 cases, an embolization was performed with good result in 16 (84%).

Adolescent↗
PubMedDate not supplied

Traumatic type B aortic dissection.

A 37-year-old man was referred with thoracic pain after a deceleration trauma. He also had a cerebral contusion and a wrist fracture. There were no sings of hypovolemic shock. Computerized tomography (CT) of the chest and transoesophageal echocardiography (TEE) demonstrated a type B aortic dissection originating just distal to the left subclavian artery. There was a patent false lumen without rupture or distal ischaemia. Conservative treatment was given. A paralytic ileus developed and abdominal complaints persisted for several months. Angiography showed normal patency of mesenteric vessels. On follow-up, 3 years after the accident a slight aortic dilation was found on CT thorax without development of a post-dissection aneurysm. Blunt thoracic injury to the aorta usually gives rise to aortic rupture in the region of the isthmus, which can be complete or partial. In the latter case a false aneurysm may develop. An intimal tear after blunt trauma leading to type B aortic dissection rarely occurs. General principles regarding treatment of type B dissection also apply to this particular condition.

Adult↗