Venous duplex and pathologic differences in thrombus characteristics between de novo deep vein thrombi and endovenous heat-induced thrombi.

Objective: Superficial venous reflux disease has been treated with endovenous ablation techniques for more than 15 years. Thrombi discovered in the postoperative period are referred to as endovenous heat-induced thrombi (EHIT). In spite of the few studies of the ultrasound differentiation between EHIT and deep vein thrombi (DVT), there remains a paucity of literature regarding the evaluation of ultrasound examination and pathologic differentiation.

Severe hemolysis after incomplete mitral valve repair.

We report 2 cases of severe intravascular hemolysis after mitral valve repair using a Duran annuloplasty ring. In both patients residual mitral regurgitation was present, hemolysis was severe enough to warrant a second operation, and hemolysis ceased immediately after the second operation. We believe that a high-velocity regurgitant jet directed toward the cloth-covered annuloplasty ring was responsible for the hemolysis in both patients.

Hemoglobin C acquired via a blood transfusion. Detection by automated blood counter.

Hemoglobin C was acquired by a 52-year-old man via a blood transfusion. The presence of nonlysis of erythrocytes on the Technicon H6000 (Tarrytown, NY) scattergram after blood transfusions and the absence of this process in the admission peripheral blood count confirmed that this abnormal hemoglobin was acquired and not endogenous to the patient. Homozygous hemoglobin C disease was confirmed in one of the donors of blood received by the patient.

Myoepithelial cells in needle aspirations of two cases of unusual breast lesions: an aid in differential diagnosis.

The observation of myoepithelial cells bordering abnormal epithelial cells in fine-needle aspiration smears of two unusual breast lesions helped to prevent misdiagnosis of these lesions as malignant. The presence of myoepithelial cells has been a well-established criterion for histologically benign lesions. Their presence or absence appears to be equally valuable in fine-needle aspiration smears of breast lesions.

Pancreaticoduodenectomy for duodenal bleeding due to hereditary hemorrhagic telangiectasia.

A variant of hereditary hemorrhagic telangiectasia may be gastrointestinal bleeding with no other classical symptoms. This case demonstrates the effectiveness of surgical resection as treatment of duodenal bleeding from telangiectatic lesions.