Serum ferritin was164 ng/ml (5-148), ESR was 12.

Hb was 13.7 g/dl. Nitroblue tetrazolium was normal. Sweat chloride test was 44 Meq/L. urine analysis was normal. Carcinoempryogenic antigen, alpha fetoprotein, and Beta-HCG were normal. Antineutrophil cytoplasmic antibody NKA, antinuclear antibodies and rheumatoid factor were negative. Immunoglobulins and tissue transglutaminase were normal. 2D echocardiography showed pulmonary hypertension with mean pulmonary arterial pressure of 70 mmHg. Skeletal survey, bone isotope scan and bone marrow biopsy were all normal. Chest X-ray and chest CT scan showed multifocal nodules with ill-defined margins that were randomly distributed in both lungs with no predilection to any lobe and without cavitation phosphatase inhibitor library (Fig. 1). Most of these lung nodules showed evidence of calcification. No mediastinal lymph node enlargement was noted. Abdominal CT scan with contrast showed multiple soft tissue attenuations in both lobes of the liver. These lesions were variable in size and with ill-defined shaggy margins and diffuse non-homogenous enhancement during the venous phase (Fig. 2). No regional or para-aortic lymph node enlargement was noted. A small mass1.5 cm in diameter was Selumetinib chemical structure noted in the lower third of the right abdominal rectus muscle, which was strongly enhanced with contrast (Fig. 3). Flexible bronchoscopy was performed and showed multiple

small nodular lesions 1 cm below subglotic area on the right tracheal wall. Circular narrowing of the lateral segment of the middle lobe was also noted. Biopsy of the tracheal lesions showed why fragments of moderately cellular proliferation of epithelioid to spindle shaped cells having large nuclei, prominent nucleoli and intracytoplasmic bubbly lumina. The cells were present in individual forms and in very small clusters embedded in a dense hyalinized stroma. Cells were tested positive for CD31 and CD34 markers but negative for CD1a and CK (Fig. 4). Liver biopsy showed a needle core of liver tissue

replaced by a dense hyalinized stroma within which were embedded scattered large spindle to epethelioid cells, both in individual as well as in very small clusters and very short trabeculae. Cells also contained large nucleui, prominent nucleoli and intracytoplasmic lumina, some containing hemosiderin. No mitotic figures were seen. Immunohistochemistry of the cells revealed the same positivity for CD31 and CD34. Excisional biopsy of the rectal abdominal mass showed the same cytology and same immnunohistochemical staining. Open Lung biopsy was not performed because of the risk imposed by pulmonary hypertension, refusal of the parents and because of the doubt of any added diagnostic value that it can provide. This case of 12-year-old with Epithelioid hemangioendothelioma presented with simultaneously found multiple lesions in the lungs, trachea, liver and abdominal rectal muscle.