Acute lymphocytic leukemia (ALL) is one of the frequent malignancies in pediatrics and involves bone marrow and extramedullary sites. Proptosis as extramedullary involvement of leukemia usually present in acute and chronic myeloid leukemia. It is extremely rare for ALL to present initially as proptosis.Here, a-21-month-old boy was presented with proptosis without any associated symptoms except ...

DESPITE the extensive literature on myelosclerosis and extramedullary haematopoiesis (myeloid metaplasia), reference to the pleura as being the site of extramedullary haematopoiesis is not made in either the standard medical and pathology textbooks or in the radiological literature. We have recently encountered a case of myelosclerosis in which aspiration of what appeared on both clinical and r...

addition, the study showed that up to 45% of patients with EMPs at diagnosis develop EMD at the time of relapse, and a multivariate regression analysis showed that the presence of EMD at diagnosis was the only predictor of extramedullary recurrence. The above features support the notion that characteristics inherent to the myeloma clone or host, rather than the treatment, are responsible for ex...

A rare clinical observation of advanced myeloid sarcoma developed through blast transformation post-polycythemia vera myelofibrosis as extramedullary manifestation acute leukemia affecting larynx, laryngopharynx, trachea, soft tissues the neck, pleura, and skeletal bones is presented.

OBJECTIVES The goal of this study was to determine whether endosomal Toll-like receptors (TLRs) contribute to the clinical manifestation of systemic autoimmunity exhibited by mice that lack the lysosomal nuclease DNaseII. METHODS DNaseII/IFNaR double deficient mice were intercrossed with Unc93b13d/3d mice to generate DNaseII-/-mice with non-functional endosomal TLRs. The resulting triple defi...

Extramedullary hematopoiesis is a common phenomenon in thalassemia. During the disease there are very rare occasions when compensatory hematopoietic tissue is located in the intraspinal epidural space, causing spinal cord compression. This complication requires urgent neurosurgical consideration and decision for further treatment. We present a case of thoracic spinal cord compression secondary ...

Intrathoracic extramedullary hematopoiesis is an unusual but well-described entity. The condition is typically found in patients who have chronic hemolytic anemias, especially thalassemia. We report a case of a 38-year-old man with underlying beta thalassemia/hemoglobin E who developed intrathoracic extramedullary hematopoiesis. The hematopoietic masses spontaneously ruptured, resulting in mass...

Extramedullary haemopoiesis causing spinal cord compression is a rare manifestation of thalassemia. We describe a 17 year old male with thalassemia intermedia who presented with progressive paraplegia and sphincter disturbance. Magnetic resonance imaging revealed an epidural lesion extending from T5 to T8 compressing the spinal cord. The patient recovered completely after surgical decompression...

Extramedullary tumors composed of myeloblasts or monoblasts can present in various locations. Patients with a history of acute myeloid leukemia (AML) can present with neuropathic pain and no evidence of relapse of their leukemia. Neuroleukemiosis is a form of extramedullary tumor present in the peripheral nervous systems (PNS) of leukemia patients. We report two AML patients who were in remissi...

Learning objectives Numerous studies have demonstrated increasing overall survival in patients with multiple myeloma over the last 40 years. Novel agents including thalidomide and bortezomib used in induction therapy, together with autologous stem cell transplant in consolidation, have improved patient outcomes. Whilst extramedullary myeloma can be a presenting form of the disease, it is becomi...