Three HIV positive subjects presented with symptoms and radiographic changes suggestive of Pneumocystis carinii pneumonia. Methenamine silver staining of bronchoscopic alveolar lavage (BAL) fluid was negative (from one sample in one patient and two samples in the other two patients). Open lung biopsy was performed because of uncertain clinical progress and diagnosis; all three patients were fou...

The presence of different immunoglobulins (lgG, IgM, and IgA) was studied in 50 routinely fixed paraffin embedded renal biopsies. lgG deposits was seen independently in 26 (52%) cases, in combination with IgA in 14 (28%) cases, with IgM in 1 (2%) case and with both lgA/lgM in 1 (2%) case. lgA alone was seen in 1 (2%) case only. IgM was seen only in 2 (4%) cases. In one case it was seen in combi...

We report a case of invasive pulmonary aspergillosis invading the mediastinum and the left atrium. A 70-year-old woman was hospitalized for dyspnea. She had been well controlled for her diabetes mellitus and hypertension. The chest X-ray disclosed mediastinal widening, and the computed tomography scan of the chest showed that there was a large mediastinal mass and this lesion extended into the ...

We report a rare case of invasive pulmonary aspergillosis invading the mediastinum and the left atrium. A 38-year-old female was hospitalized for cough, shortness of breath and fever. She had a past medical history of tuberculosis. Computed tomography (CT) scans identified an ill-defined enhancing mediastinal soft tissue density mass encasing the heart and major vessels. The cardiac echocardiog...

The technique of immunoblotting for detecting soluble Pneumocystis carinii antigen(s) in bronchoalveolar lavage fluid specimens from patients with AIDS and Pneumocystis pneumonia was evaluated. A soluble 67 kilodalton polypeptide that was immunoreactive with an anti-P carinii monoclonal antibody (2G2) was found in the supernatants of 26 lavage samples from patients with pneumocystosis. Intact o...

OBJECTIVE Reflexive testing of bronchoalveolar lavage (BAL) specimens with Gomori methenamine silver (GMS) and acid-fast bacillus (AFB) stains is not routinely performed by most institutions. Instead, these stains are usually ordered to evaluate for the presence of fungal elements and/or acid-fast organisms if initial histopathologic assessment suggests the presence of these pathogens. Our inst...

Introduction: Lichenoid granulomatous dermatitis (LGD) is widely encountered lesions with both oral as well dermal manifestation. Present study was done to evaluate lichenoid stomatitis cases. Materials and methods: 226 biopsies were exposed special stains such acid-fast bacilli (AFB), immunohistochemical staining for CD 68 Grocott methenamine-silver (GMS), periodic acid‐Schiff (PAS) stains. Re...

ABSTRACT: We described a case of rhinitis caused by Exserohilum rostratum in 3-year-old, mixed breed, afemale goat, presenting with decreased appetite, dyspnea, and face deformity, evolution approximately 2 months. Necropsy revealed an extensive brownish yellow, irregular, ulcerated, friable focal lesion the nasal cavity. Purulent secretion drained from lesion, affecting vestibule extending cau...

The objective of this study is to describe the clinical, epidemiological and anatomopathological aspects a case nasal rhinosporidiosis in horse Northeast Brazil. A 15-year-old female mixed breed presented nodule mucosa right septum. Surgical excision was performed sent for histopathological examination. Macroscopically, had an irregular reddish surface, when cut it soft, whitish, polypoid shape...