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H Dahan

Publications and source records attributed to H Dahan.

27 records · Page 2Linked to original sources
PubMed1997

[Imaging of a case of wirsungorrhagia].

We report a case of wirsungorrhagia related to rupture of a pseudoaneurysm into the duct of Wirsung in a patient with chronic pancreatitis. Upper gastrointestinal endoscopy showed blood coming from the papilla of Vater suggesting wirsungorrhagia. Non-contrast computed tomography showed a spontaneous hyperdensity and arteriography showed an extravasation of contrast within a very large duct of Wirsung confirming wirsungorrhagia. Arteriography and dynamic computed tomography revealed a pseudoaneurysm from the left gastric artery. The pseudoaneurysm was successfully embolized with four steel microcoils, after super-selective catheterization of small branch of the left gastric artery, keeping gastric and liver vascularization.

Aneurysm, False↗
PubMed1994

The diagnostic value of fine-needle aspiration biopsy under ultrasonography in nonfunctional thyroid nodules: a prospective study comparing cytologic and histologic findings.

Fine-needle aspiration biopsy (FNAB) of thyroid nodules has been proposed as a preoperative screening method to reduce the number of patients with benign nodules referred for surgery. Only a few previously published studies have compared cytologic results with a systematic surgical control; furthermore, the role of ultrasound guidance for FNAB in obtaining representative material has been poorly evaluated. The authors tried to assess the diagnostic value of FNAB performed under ultrasonography in a series of patients with a cold nodule and a systematic surgical control. This prospective study included 132 consecutive patients, 19 men and 113 women, aged from 18 to 82 years. The rate of carcinomas was 13.8%. A very high rate of adequate material was obtained (96.2%). Sensitivity, specificity, and global accuracy were 95%, 87.7%, and 89%, respectively. These results, which are equivalent to those previously published but associated with a low level of insufficient material, emphasize the diagnostic value of thyroid FNAB.

Adult↗
PubMedDate not supplied

Leiomyoma of the adrenal gland in a patient with AIDS.

Leiomyoma of the adrenal gland is an exceptional localization. We report a case occurring in a young patient with AIDS. Diagnosis was a surprise on pathologic examination. On enhanced computed tomographic (CT) scan, the adrenal mass had a low central attenuation area and a thin enhancing peripheral ring. On magnetic resonance (MR) imaging the left adrenal mass was isointense with the liver on T1-(TR/TE = 500/300 ms) and T2-(TR/TE = 2030/60, 120 ms) weighted spin-echo images, except a central area with a lower signal on T1-weighted images and a higher signal on T2-weighted images. The mass was slightly enhanced after Gd-DOTA injection, but the central area remained unchanged.

Acquired Immunodeficiency Syndrome↗
PubMedDate not supplied

CT of abdominal wall implantation metastases after abdominal percutaneous procedures.

PURPOSE: Our goal was to report the CT manifestations of abdominal wall implantation metastases occurring after abdominal percutaneous procedure. METHOD: CT scans and clinical data of six patients with abdominal wall implantation metastases at the puncture site following abdominal percutaneous procedure were reviewed. The abdominal percutaneous procedures included drainage of intraperitoneal abscess in patients with colon or gastric cancer (n = 2), transhepatic biliary drainage in a patient with hilar cholangiocarcinoma (n = 1), biopsy of intrahepatic hepatocellular carcinoma (n = 1), biopsy of a metastatic left adrenal gland (n = 1), and laparoscopic cholecystectomy in a patient with unsuspected gallbladder cancer (n = 1). RESULTS: CT enabled the diagnosis of abdominal wall implantation metastasis in all six patients and showed coexisting intraabdominal tumor sites in five patients. All abdominal wall implantation metastases were homogeneous before intravenous administration of iodinated contrast material and became moderately heterogeneous on contrast-enhanced CT scan with marked enhancement relative to adjacent tissues. CONCLUSION: Abdominal wall implantation metastases are moderately heterogeneous on contrast-enhanced CT scan with marked enhancement relative to adjacent tissues. In most cases of abdominal wall implantation metastasis following abdominal percutaneous procedure, CT shows additional intraabdominal tumor sites. This complication may occur following a variety of abdominal percutaneous procedures (either radiological or surgical).

Abdominal Muscles↗
PubMedDate not supplied

Retrorectal developmental cysts in adults: clinical and radiologic-histopathologic review, differential diagnosis, and treatment.

Developmental cysts are the most common retrorectal cystic lesions in adults, occurring mostly in middle-aged women. They are classified as epidermoid cysts, dermoid cysts, enteric cysts (tailgut cysts and cystic rectal duplication), and neurenteric cysts according to their origin and histopathologic features. Although developmental cysts are often asymptomatic, patients may present with symptoms resulting from local mass effect (eg, constipation, rectal fullness, lower abdominal pain, dysuria), with a palpable retrorectal mass at digital rectal examination, or with a complication. Infection with fistulization, bleeding, and malignant degeneration are the major complications of developmental cysts. A well-defined, unilocular or multilocular, thin-walled cystic lesion is the main imaging feature. Uncommonly, a sacral bone defect and calcifications are associated with developmental cysts. The differential diagnosis includes cystic sacrococcygeal teratoma, anterior sacral meningocele, anal duct or gland cyst, necrotic rectal leiomyosarcoma, extraperitoneal adenomucinosis, cystic lymphangioma, pyogenic abscess, neurogenic cyst, and necrotic sacral chordoma. Complete surgical excision is indicated to establish the diagnosis and avoid complications.

Adult↗