PubMed Health⌕ Search

Biomedical subjects

T J Karcnik

Publications and source records attributed to T J Karcnik.

6 recordsLinked to original sources

Granular cell tumor of the breast: definitive diagnosis by sonographically guided percutaneous biopsy.

Granular cell tumor is a rare, benign breast neoplasm that may mimic malignancy both clinically and radiologically. We present 2 cases in which granular cell tumor was initially diagnosed by sonographically guided percutaneous biopsies. Sonographic guidance confirmed needle placement during multiple passes and thereby decreased the likelihood of sampling error. A diagnosis of granular cell tumor prior to definitive resection enables optimal therapeutic planning and allows radical surgery to be avoided.

Adult↗

The fetal presacral pseudo-mass: a normal sonographic variant.

We examined 416 consecutive third trimester intrauterine gestations over a 4-month period and discovered 26 hypoechoic masses in the fetal presacral space (6.3% incidence). These masses varied in diameter from 15 to 30 mm (mean, 21.5 mm). All neonates were normal on follow-up examination, without evidence of any masses or neurologic deficits. The fetal rectosigmoid colon frequently is identified in the third trimester and may reach 2 to 3 cm at term. Because the prevalence of meconium-filled rectum (6.3%) exceeds that of a presacral teratoma (0.0025%), this normal anatomic variant should be considered the most common cause of a third trimester presacral "mass."

Colon, Sigmoid↗

Hyaline vascular-type Castleman disease: a rare cause of a hypervascular retroperitoneal mass.

We present the cross-sectional imaging and angiographic findings of hyaline vascular-type Castleman disease located in the retroperitoneum. The diagnosis was made postoperatively. This entity can simulate a malignant neoplasm. The histologic subtypes and presentations of Castleman disease and the differential diagnosis of retroperitoneal masses are discussed.

Adult↗

Foreign body granuloma simulating solid neoplasm on MR.

We report a postoperative foreign body granuloma occurring in the thyroid bed after anterior cervical fusion. The magnetic resonance (MR) imaging finding of increased signal on T2-weighted images is atypical for this type of granuloma and is thought to be due to the large proportion of cellularity in the mass histologically. In the differential diagnosis of solid postoperative masses it is important to consider foreign body granuloma, as it can mimic neoplastic disease both clinically and radiographically.

Cervical Vertebrae↗