Primary intraosseous meningioma is a rare tumor, and atypical pathologic components both osteolytic lesion and dura and soft tissue invasion is extremely rare. A 65-year-old woman presented with a 5-month history of a soft mass on the right frontal area. MR imaging revealed a 4 cm sized, multilobulated, strongly-enhancing lesion on the right frontal bone, and CT showed a destructive skull lesio...

symptomatic mullerian duct cysts are uncommon. a young adult male presented to us with a palpable supra-pubic mass, pain and lower urinary tract symptoms. initial imaging modalities showed a large cystic lesion in the pelvis with a non-visualized right kidney. a short, blind ending right ureter on retrograde pyelography added to the confusion. on exploration, the lesion was noted to be separate...

congenial cystic adenomatoid malformation of the lung (ccaml) is a rare lesion and is characterized by a multicystic mass of pulmonary tissue with an abnormal proliferation of bronchial structures. we report a case of ccaml type i presenting with heart displacement that was diagnosed prenatally.

Chemotherapy may induce mass lesion in rare conditions, which can be easily mistaken as a residual tumor mass. In this report, we describe a mass affecting spleen in a patient received chemotherapy for non Hodgkin diffuse large B cell lymphoma. This mass proved histologically to be non neoplastic formed of sheets of histiocytes and xanthoma cells, which is called histiocyte-rich pseudotumor. Th...

We present the case of an 84-year-old man with nonmassive hemoptysis and an obstructing endobronchial mass who was referred for rigid bronchoscopy and biopsy of the lesion. We illustrate how the pulsatile movement of his endobronchial lesion could be differentiated by convex probe endobronchial ultrasound bronchoscopy to be a vascular lesion rather than an endobronchial mass or tumor. Although ...

Recently a new method for determining the neutrino mass hierarchy by comparing the effective values of the atmospheric ∆m measured in the electron neutrino disappearance channel, ∆m(ee), with the one measured in the muon neutrino disappearance channel, ∆m(μμ), was proposed. If ∆m(ee) is larger (smaller) than ∆m(μμ) the hierarchy is of the normal (inverted) type. We re-examine this proposition i...