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Biomedical subjects

J F Hibbeln

Publications and source records attributed to J F Hibbeln.

14 recordsLinked to original sources
PubMed1997

The perinephric space and renal fascia: review of normal anatomy, pathology, and pathways of disease spread.

The perinephric space is a cone-shaped retroperitoneal compartment containing the kidney, adrenal gland, perinephric fat, fibrous bridging septa, and a rich network of perirenal vessel and lymphatics. Perinephric space pathology may originate from within or outside the confines of the perirenal fascia. Most intrinsic perinephric space disease arises from the kidney or adrenal gland, and secondarily involves the perinephric space. Disease originating outside the cone of renal fascia may spread to the perinephric space via lymphatics (i.e., metastatic spread) or by directly transgressing perirenal fascial planes (e.g., invasive tumor or infections). Additionally, infiltrating soft tissue or rapidly accumulating retroperitoneal fluid may travel into or out of the perinephric space via perinephric bridging septa and renal fascia. In this article, we review the normal anatomy of the perinephric space and renal fascia, emphasizing the significance of retroperitoneal interfascial planes and perinephric bridging septa as a potential conduit for retroperitoneal disease spread. This review of normal anatomy and pathways of disease spread serves as background for a discussion of a variety of specific pathologic conditions that may involve the perinephric space and retroperitoneal fascia, including pancreatitis, retroperitoneal hematoma, urinoma, metastatic disease, and perirenal varices.

Diagnostic Imaging↗
PubMed1996

Tc-99m sestamibi uptake in infiltrating ductal carcinoma of the breast in a male patient.

A 73-year-old man had an asymptomatic, slowly growing breast nodule. The mammographic appearance was highly suspicious of a malignancy, but the patient refused to undergo a biopsy. Because breast carcinoma has been previously described to accumulate Tc-99m MIBI in women, mammoscintigraphy was performed as a complementary examination. Uptake of the agent was noted.

Aged↗
PubMed1995

Subcutaneous splenosis.

Splenosis is the ectopic implantation of splenic tissue, usually as the result of trauma. Intraperitoneal, intrathoracic, and retroperitoneal sites of implantation have been reported. The authors report a case of subcutaneous splenosis involving the abdominal wall that was imaged with CT and scintigraphy.

Abdominal Muscles↗
PubMed1993

Complications after laparoscopic cholecystectomy: imaging findings.

Laparoscopic cholecystectomy is rapidly becoming an acceptable alternative to traditional open cholecystectomy. Laparoscopic procedures are associated with shortened recovery periods and hospital stays and the cosmetic benefit of smaller scars. Early results from laparoscopic cholecystectomies suggested a high rate of complications; however, recent studies have shown that, in experienced hands, the complication rates of open and laparoscopic procedures are comparable. Complications differ somewhat between the two types of operations. In laparoscopic cholecystectomy, complications are associated with virtually every aspect of the procedure. The purpose of this essay is to illustrate the imaging findings of the complications that occur in patients undergoing laparoscopic cholecystectomy.

Abdominal Muscles↗
PubMedDate not supplied

Klinefelter's syndrome associated with testicular microlithiasis and mediastinal germ-cell neoplasm.

Klinefelter's syndrome is a genetic disorder of male sexual differentiation characterized by an XXY karyotype. Although considered a benign condition, it is associated with several types of malignancies, including mediastinal germ-cell neoplasm. In addition, Klinefelter's syndrome has been rarely associated with testicular microlithiasis. Whereas patients with Klinefelter's syndrome have an increased incidence of extragonadal germ-cell neoplasms, patients with testicular microlithiasis have a predisposition to testicular germ-cell neoplasms. To our knowledge, an extragonadal germ-cell neoplasm has not been previously described in association with testicular microlithiasis. We present a patient with 2 unusual conditions, both of which are independently associated with Klinefelter's syndrome: mediastinal germ-cell neoplasm and testicular microlithiasis.

Adolescent↗
PubMedDate not supplied

Perforated jejunal diverticulum: CT diagnosis.

A case of a perforated jejunal diverticulum with retroperitoneal extension is presented. Computed tomographic (CT) features and the plain radiographic appearance are described in this rare complication of a common pathologic finding.

Aged↗
PubMedDate not supplied

Chylous ascites: CT and ultrasound appearance.

An unusual but pathognomonic appearance of chylous ascites was observed on computed tomographic (CT) and ultrasound examinations of the abdomen in a patient with AIDS and disseminated tuberculosis. The images showed gradual development of fat-fluid level in the peritoneal collection when the patient maintained a recumbent position. The explanation for this phenomenon is provided together with a brief review of pertinent literature.

Acquired Immunodeficiency Syndrome↗
PubMedDate not supplied

CT appearance of incidental pancreatic lipomas: a case series.

Pancreatic lipomas are rare benign lesions, with only 15 examples documented in the current literature. We describe five cases of intrapancreatic lipomas from a single institution, all incidentally found using computed tomography within a 14-month period. Computed tomography depicted lipomas as homogeneous, nonenhancing, well-marginated lesions with a density coefficient consistent with adipose tissue.

Aged↗
PubMedDate not supplied

Imaging findings of adult Bochdalek hernias.

The purpose of this article is to review the computed tomographic (CT) and related radiographic findings of adult Bochdalek hernias. Bochdalek hernias are one of the most common congenital abnormalities encountered in imaging studies of the chest and abdomen. CT can be used to confidently diagnose Bochdalek hernias, which can easily mimic neoplasms on other imaging studies.

Hernia, Diaphragmatic↗