To explore the potential of grating-based x-ray phase-contrast computed tomography (CT) for preclinical research, a genetically engineered mouse model of pancreatic ductal adenocarcinoma (PDAC) was investigated. One ex-vivo mouse specimen was scanned with different grating-based phase-contrast CT imaging setups covering two different settings: i) high-resolution synchrotron radiation (SR) imagi...

Ammonoid cephalopods are extremely rare in the Lower and Middle Devonian sedimentary rocks of Belgium, which contrasts with neighboring basins. However, searches old collections recent collecting efforts show that ammonoids do occur these beds allows to enlarge our knowledge ammonoid occurrences. Here, a record Eifelian (Middle Devonian) anarcestid genus Subanarcestes is described for first tim...

A 72-year-old female was admitted with the symptoms of malaise, loss of appetite, upper right quadrant pain, fever, and sweats, which had been present for last 7 days. CT-scan of the abdomen revealed a hypodense mass in the right liver lobe; histopathological examination of the biopsy specimen yielded a diagnosis of actinomycotic abscess. Treatment with intravenous ampicillin for 8 weeks follow...

A man complained of upper abdominal pain and early satiety for one month. An upper gastrointestinal endoscopy showed nothing specia. A CT scan of the abdomen was perfromed, which demonstrated a huge heterogeneous retroperitoneal mass close to the dorsal wall of the stomach and surrounding the abdominal aortic and celiac trunk. The resected specimen suggested that an un-regular tumor invaded to ...

Neonatal stridor resulting from intrinsic or extrinsic aberration in the upper respiratory tract often poses not only a diagnostic problem, but also a difficult airway and a dilemma as to the necessity / timing of surgical intervention. A 45 day old female child with increasing stridor since birth was managed by emergency intubation and CT scan followed by excision biopsy of the cystic left sid...

A 4-year-old female presented with painless mass on left side of neck, biopsy of which was done from referring place. As the report was not available, FNAC of the mass was done, which was pleomorphic adenoma of left parotid gland. CT shows large heterogeneous mass in relation to the left parotid gland and mass was contiguous with the carotid artery. Parotidectomy was positive for malignancy. Hi...

OBJECTIVE To assess the feasibility of computed tomography (CT) lymphography using ethiodized oil for sentinel node mapping in experimentally induced VX2 carcinoma in the rabbit thigh. MATERIALS AND METHODS This experiment received approval from the institutional animal use and care administrative advisory committee. Twenty-three rabbits with VX2 carcinoma in the thigh underwent CT before and...

OBJECTIVES X-ray computed tomography (CT) using phase contrast can provide images with greatly enhanced soft-tissue contrast in comparison to conventional attenuation-based CT. We report on the first scan of a human specimen recorded with a phase-contrast CT system based on an x-ray grating interferometer and a conventional x-ray tube source. Feasibility and potential applications of preclinica...

A 63-year-old lady, presented to us with nonspecific abdominal pain. Ultrasonography (USG) and CT scan abdomen and pelvis, showed right moderate hydronephrosis, with no evidence of mass at pelvi-ureteric junction (PUJ) obstruction. Per-operatively mass upper ureter was found obstructing PUJ. Mass was excised and pyeloplasty done, with Double J (DJ) Stenting. Stent was removed after a week. Hist...

Figure 1. Upper left, Photograph showing skin lesions on arm and shoulder of patient. Upper right, CT scan of neck revealing multiple enlarged lymph nodes. Lower left, Detail of a skin ulcer on forehead of patient. Lower right, Histologic examination of skin biopsy specimen showing perivascular infiltrates of neutrophil granulocytes and ovoid yeasts (diameter, 15 mm) and a thick cell wall (peri...