Idiopathic pulmonary hemosiderosis (IPH), the main cause of pulmonary hemosiderosis in children, is characterized by intermittent alveolar bleeding and hemosiderin-laden macrophages in sputum and in gastric lavage. The treatment is based on corticosteroids and cytotoxic drugs, under special conditions. We describe the case of a 7-year-old girl with IPH who achieved partial clinical remission wi...

In diseases which bring about a siderosis of the kidney there are ordinarily present in the urinary sediment cells containing granules of hemosiderin, and often many free granules as well. The finding has proved useful in the diagnosis of hemochromatosis and will probably be of service in the recognition of pernicious anemia, and possibly some other diseases. But in this relation the fact shoul...

INTRODUCTION Pigmented villonodular synovitis (PVNS) is a proliferative condition of the synovium, which is composed of nodules and/or villi and has an abundant number of hemosiderin-laden macrophages. CASE REPORT A 10-year-old boy presented with an acute irritable knee. Emergency arthroscopy showed a nodular PVNS in the intercondylar notch. The symptoms resolved after resection of the lesion...

While airway endoscopy and bronchoalveolar lavage are the methodsof choice for diagnosing exercise-induced pulmonary hemorrhage (EIPH), these techniques do not allow accurate evaluation of the severity of bleeding. EIPH pathology is characterized by occlusive remodeling of pulmonary veins. Affected veins have large collagen deposits in their walls, which reduces their lumens. In the caudodorsal...

Introduction Cerebral cavernomas are by definition "occult angiographic lesions" and it is through magnetic resonance imaging (MRI) that the diagnosis of cavernoma has become clearly evident. The typical MR features of cerebral cavernoma are a well-delineated nodule including central hyperintense foci surrounded by a characteristic hypointense rim of hemosiderin due to repeated bleeding on T2*-...

affected organs were sectioned and a suspension also passaged into parrots and mice, with negative results. Two hundred and fifty parrots were examined, they were locally known as green parrots and Kashmere parrots; the Indian parrot belongs to the genus Paleornis. The size of the spleen varied from 3 mm. to 11 mm. in diameter and about 25 per cent of the birds had enlarged spleens (8 mm. to 11...

Pigmented villonodular synovitis (PVNS) is a rare, benign, proliferative disease of the synovial membrane of joints, tendon sheaths, and bursas. Joint aspiration typically yields hemorrhagic or xanthochromic/serosanguinous (brown, murky) fluid. We describe a case of PVNS that presented as an acute, painless, nontraumatic right knee effusion with clear synovial fluid on arthrocentesis. Initial m...

A 50-year-old woman with a right cerebellopontine-angle schwannoma developed a chain of complications after multiple surgeries for tumor resection including intracerebral and subarachnoid hemorrhage, hydrocephalus, and fungal meningitis with subarachnoid pyogenic loculations. After 2 months of routine monitoring, cerebrospinal fluid (CSF) examination revealed increased red blood cells (RBCs), n...

Dermatopathic lymphadenitis (DL) is a reactive lymphoid hyperplasia that commonly involves the regional lymph nodes in patients with chronic dermatoses, such as exfoliative dermatitis, toxic-shock syndrome, pemphigus, psoriasis, eczema, and, in severe cases, mycosis fungoides. Diagnosis of DL depends on the histopathologic characteristics of paracortical T-zone expansion with melanin, hemosider...

Pigmented villonodular synovitis (PVNS) is a benign proliferative joint disease with an uncertain etiology that uncommonly involves the spine. We present a case of PVNS involving the lumbar spine. A 38-year-old male developed back pain and pain in both legs caused by a mass in the L4 region of the right lamina. After gross total tumor removal, the symptoms improved. The pathological finding was...