Portal hypertension: Imaging of portosystemic collateral pathways and associated image-guided therapy.

Portal hypertension is a common clinical syndrome, defined by a pathologic increase in the portal venous pressure. Increased resistance to portal blood flow, the primary factor in the pathophysiology of portal hypertension, is in part due to morphological changes occurring in chronic liver diseases. This results in rerouting of blood flow away from the liver through collateral pathways to low-pressure systemic veins.

Tuberculous osteomyelitis/arthritis of the first costo-clavicular joint and sternum.

A young Somali immigrant presents with a two-year history of a large, firm, painful right anterolateral chest wall sternal mass. The patient denied any history of trauma or infection at the site and did not have a fever, erythematous lesion at the site, clubbing, or lymphadenopathy. A lateral chest radiograph demonstrated a low density mass isolated to the subcutaneous soft tissue overlying the sternum, ribs and clavicle.

Intraprostatic hematoma with active bleeding post-prostate biopsy.

To the best of our knowledge, we report the first known case of a large intraprostatic hematoma with active bleeding following transrectal ultrasound-guided prostate biopsy.

A near-fatal case of sepsis with an antibiotic-resistant organism complicating a routine transrectal prostate biopsy in a health care worker.

A 58-year-old physician with an elevated prostate specific antigen developed severe septic shock following a repeat transrectal prostate biopsy despite standard preoperative prophylactic protocol. This case highlights the significance of harbouring antibiotic-resistant bacteria and the risk of previous quinolone exposure. We believe this case may herald a rare but potentially serious consequence of increasingly common antibiotic resistance and that high-risk patients should be studied to determine their likelihood of carrying antibiotic-resistant flora in their genitourinary/gastrointestinal tract.

Intravascular pulmonary metastases from sarcoma: appearance on computed tomography in 3 cases.

Introduction: Various common malignant neoplasms (ie, liver, kidney, stomach, and breast) have been reported to embolize to the pulmonary arterial system. This uncommon occurrence can also result from metastatic sarcoma. We report 3 cases--2 chondrosarcomas and 1 osteosarcoma-associated with intravascular metastases to the pulmonary vasculature and discuss the clinical presentation and differentiating radiologic features on computed tomography (CT).

Pathologic fracture through a unicameral bone cyst of the pelvis: CT-guided percutaneous curettage, biopsy, and bone matrix injection.

Unicameral bone cysts of the pelvis are extremely rare. A 19-year old man presented with a pathologic fracture through a pelvic unicameral bone cyst. He was treated with computed tomography-guided percutaneous curettage, biopsy, and demineralized bone matrix injection.