For a memory system such as the hippocampus in which asso-ciatively modifiable recurrent collateral connections between a population of neurons such as the CA3 pyramidal cells are believed, it is important that the memory representations to be stored are as orthogonal or uncorrelated as possible, to maximize the storage capacity. Only if the sets of neuronal firing, each representing a differen...

The Stewart-Treves syndrome is a rare and deadly entity, which is defined as angiosarcoma arising in the setting of chronic lymphedema. It typically presents in women who develop lymphedema in the upper extremity secondary to axillary lymph node dissection for breast cancer surgery. It is extremely uncommon in the lower extremities as a result of idiopathic chronic lymphedema. Here, we present ...

A ngiosarcoma is a rare, aggressive vascular malignancy with a poor prognosis. Primary cutaneous angiosarcoma arises de novo on the head and neck of the elderly, whereas secondary angiosarcoma arises in the setting of known risk factors, including chronic lymphedema or previous irradiation. When associated with chronic lymphedema, it is eponymously referred to as StewarteTreves syndrome. The pa...

AIMS To study the clinicopathologic features of Stewart-Treves syndrome (STS) in postmastectomy patients including the epidemiology, presentation, morphology, differentiation, pathogenesis and therapeutic options. METHODS AND RESULTS Ten cases of STS in postmastectomy patients were retrospectively identified in our archives, and immunohistochemistry for CD34, CD31, D2-40, HHV-8, CK, EMA and K...