muramidase and Splenic-Rupture

Pathological examination in the spleen of an 81-year old female with hemoperitoneum, hypovolemic shock, anemia, thrombocytopenia and hyperglicemia revealed the presence of an angiosarcoma. On histological examination, characteristically the neoplasm was formed by vascular lumina and cystic spaces into which papillary fronds projected and solid nests. Neoplastic cells had scant cytoplasm, hyperchromatic, oval or reniform nuclei, with prominent nucleoli. The necrosis was evident and mitoses were frequent. Immunohistochemical analysis revealed positivity for endothelial (CD31, CD34) and histiocytic markers (CD68 and lysozyme) and negativity for CD21. Ultrastructural examination also disclosed a biphasic differentiation, showing the presence of organelles associated with histiocytic and endothelial differentiation. These findings suggest that this lesion can be considered a conventional splenic angiosarcoma with focal histocytic differentiation.

Topics: Aged, 80 and over; Antigens, CD; Biomarkers, Tumor; Cell Nucleus; Fatal Outcome; Female; Hemangiosarcoma; Humans; Lysosomes; Muramidase; Necrosis; Rupture, Spontaneous; Splenic Neoplasms; Splenic Rupture

In a study of 51 patients with a history of blunt abdominal trauma, peritoneal tap and lavage made a positive contribution to the diagnostic process in 15 cases. Thirteen patients had early definitive operation on the basis of tap and lavage evidence which overruled the clinical evaluation, and two patients were managed conservatively when a negative tap and lavage contradicted the clinical decision.

Topics: Abdominal Injuries; Adolescent; Adult; Aged; Amylases; Ascitic Fluid; Female; Humans; L-Lactate Dehydrogenase; Lipase; Male; Methods; Middle Aged; Muramidase; Pregnancy; Prospective Studies; Sodium Chloride; Splenic Rupture