Primary pseudomyogenic hemangioendothelioma of bone: case report and review of the literature.

Pseudomyogenic hemangioendothelioma (PMH) represents a multicentric recently characterized tumor type, generally presenting in young adults, of postulated vascular origin and intermediate malignancy. This entity tends to arise in the deep-seated dermal-subcutaneous locations, preferentially limited to one anatomic site, and may extend secondary to bone. PMH restricted to the skeletal system is rare.

[The so-called spontaneous hematoma of the anterior rectus abdominis reproducing syndromes of acute surgical abdomen].

Personal experience of spontaneous haematoma on the anterior straight muscles of the abdomen over 15 years is reported. True spontaneous haematoma on the anterior straight muscles of the abdomen are extremely rare, even exceptional and must be distinguished from those haematomas, improperly called spontaneous that are, in fact, clearly traumatic in origin. Personal observation suggests that true spontaneous haematoma is the expression of a pathological rupture of the muscle and/or the epigastric blood vessels that in its turn reflects a serious basic pathology.

The use of low molecular weight heparins for postsurgical deep vein thrombosis prevention in orthopaedic patients.

The prophylactic antithrombotic efficacy of a low molecular weight heparin was compared with a traditional unfractionated calcium heparin after orthopaedic surgery in 140 patients. Deep vein thromboses were detected in legs either by Doppler sonography or [125I]fibrinogen uptake tests in five (7.1%) and seven (10%) patients, respectively.