To investigate the prevalence of Cryptosporidium infection in horses, a total of 200 fecal specimens were collected randomly from five farms in Tehran. Samples were taken during a year, 50 specimens each season. Of these specimens, 57 were obtained from Caspian Pony. The presence of oocysts in the samples was confirmed by modified Ziehl-Neelsen staining of direct smears of the fecal material fr...

Cryptosporidium spp. is a protozoal parasite that can cause significant gastrointestinal diseases in humans and animals. Those parasites infection, especially young immunosuppressed animals many mammals, poultry, reptiles, humans, Localised the digestive system, epithelial cells threaten human animal health with their zoonotic properties. The study's material consisted of 200 dogs different bre...

to investigate the prevalence of cryptosporidium infection in horses, a total of 221 faecal specimenswere collected from 18 villages of urmia, northwestern iran. the samples were studied microscopically bymodified ziehl-neelsen staining. the cryptosporidial infection was found in the collected samples from 11 of18 villages. although the prevalence of the infection was 15.8%, none of the infecte...

1,001 faecal samples were obtained from 89 sheep (lambs and adult), 184 goats, 190 horses, 178 rabbits, 110 camels, 200 broiler chicken and 50 turkeys housed in farms from different localities in Tunisia. All samples were analysed for Cryptosporidium oocysts by microscopic examination of smears stained by modified Ziehl Neelsen technique. The parasite was detected in ten lambs and adult sheep (...

We report a case of Crohn's disease in a 32-year old Saudi male. The disease presented with severe, life-threatening ileal bleeding necessitating an urgent laparotomy and 100 cm of ileum and ascending colon was resected. The bleeding source was several ulcers in an inflamed ileum and histopathologic examination revealed typical findings of Crohn's disease with a chronic, transmural inflammation...

The patient had a two month history of gastrointestinal symptoms. Upper gastrointestinal endoscopy disclosed 5 mm nodular lesions were seen in the prepyloric area. On pathological examination, two granulomatous lesions were detected in biopsy specimen. Ehrlich Ziehl-Neelsen staining and cultures of the biopsy material were negative, but polymerase chain reaction (PCR) for Mycobacterium tubercul...

Cytologic diagnosis of mycobacterial infection has conventionally depended on the recognition of granulomatous inflammation with caseous necrosis and the identification of acid-fast bacilli with special stains. Immunocompromised patients however may not mount the expected response. Mycobacteria can be seen as negative images in fine needle aspiration cytologic smears from patients with acquired...

We report a case of pulmonary nocardiosis in an immunosuppressed patient having vasculitis who presented with fever, cough and chest pain. A suspicion of nocardiosis was made on auramine O staining of material procured by CT guided fine needle aspiration cytology right lung. Modified Ziehl-Neelsen staining was useful in confirming the diagnosis. The patient showed remarkable recovery after trea...

A 54-year-old woman with a past history of silicone augmentation mammoplasty was admitted with fever and dyspnea with diffuse interstitial shadows on computed tomography (CT). Although radiological findings were atypical, we diagnosed sarcoidosis by laboratory, microbiological, and bronchoalveolar lavage fluid analysis. Corticosteroids ameliorated the condition, but she had recurrent of fever a...

Gastrointestinal symptoms occurring in patients with Crohn's disease (CD) can be related to disease activity or to intercurrent infection. Absence of appropriate stool work-up can lead to misdiagnosis and wrong treatment. We report here two cases of acute cryptosporidiosis in patients with CD. This microorganism can trigger IBD flare or cause severe infections in immunocompromised host. Adding ...