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Colorectal cancer not always easy to detect by colonoscopy

According to a new study by researchers in the U.S. colonoscopies do not detect all colorectal cancers; they say that flat lesions can be easily overlooked during a colonoscopy.

9 Mar 2008

PET/CT planning beneficial for head and neck cancer patients

Using a combination of positron emission tomography (PET) and computed tomography for radiation therapy treatment planning in head and neck carcinoma patients provides for excellent, local and regional disease control when compared to CT alone, according to a study in the March 1 issue of the International Journal for Radiation Oncology*Biology*Physics, the official journal of the American Society for Therapeutic Radiology and Oncology.

6 Mar 2008

Flat, non-polypoid colorectal neoplasms linked to colorectal cancer

Flat, non-polypoid colorectal neoplasms (NP-CRNs), which may be difficult to detect, appear to be relatively common and may have a greater association with cancer compared with the more routinely diagnosed type of colorectal polyps, according to a study in the March 5 issue of JAMA.

6 Mar 2008

Arsenic aids tumor imaging when joined to cancer-homing drug

Arsenic linked to a drug that binds to the blood vessels of cancerous tumors provides a powerful imaging agent that could one day allow physicians to detect hard-to-find tumors and more closely monitor cancer's response to therapy, researchers at UT Southwestern Medical Center have found.

6 Mar 2008

Arsenic used to label antibodies for the detection of tumors

3 Mar 2008

New radiology center puts research scanners in hospital

Whether it's needed to track the activity of a drug, the growth of a tumor, or the progress of a medical disorder, high-tech imaging equipment often is an essential component of advanced clinical research.

28 Feb 2008

Small protein discovered that specifically recognizes tumors responding to chemotherapy

A technique that specifically "tags" tumors responding to chemotherapy may offer a new strategy for determining a cancer treatment's effectiveness within days of starting treatment, according to a new study by Vanderbilt-Ingram Cancer Center investigators.

26 Feb 2008

Are tumors causing stricture of bile duct always malignant?

The benign biliary tract tumor is rarely found in clinical practice.

26 Feb 2008

Unusual case of upper obstructive syndrome

Aorto-duodenal fistulae (ADF) are the most frequent aorto-enteric fistulae (80%) and the most frequent presenting sign of ADF is upper gastrointestinal bleeding (UGI).

25 Feb 2008

A rare diagnosis in the operation room: Kidney atrophy due to duplicated colon in an adult

Gastrointestinal congenital anomalies are rare entities in an adult patient.

25 Feb 2008

New proof-of-principle findings that thymic involution can be reversed in humans

Scientists at the Gladstone Institute of Virology and Immunology (GIVI) and the University of California, San Francisco (UCSF) have found that therapy can be used to stimulate the production of vital immune cells, called "T- cells," in adults with HIV infection.

21 Feb 2008

Moderate prenatal exposure to alcohol and stress in monkeys can cause touch sensitivity

A new study on monkeys has found that moderate exposure to alcohol and stress during pregnancy can lead to sensitivity to touch in the monkeys' babies.

8 Feb 2008

PET outperforms CT in characterization of lung nodules

Researchers involved in a large, multi-institutional study comparing the accuracy of positron emission tomography (PET) and computed tomography (CT) in the characterization of lung nodules found that PET was far more reliable in detecting whether or not a nodule was malignant.

7 Feb 2008

Computer model for osteoporosis diagnostics

Osteoporosis, a common age-related disease, is being investigated by a group of biomechanical engineers at Vienna University of Technology (TU Vienna).

23 Jan 2008

Germanium-68 may aid medical imaging, drug development

Broadway stars have understudies. Now, an increasingly popular radioactive isotope has its own stand-in.

10 Jan 2008

Taranabant shows promise for weight loss in obese people

The first clinical studies of an experimental drug have revealed that obese people who take it for 12 weeks lose weight, even at very low doses.

9 Jan 2008

Stop whole body scans says committee on radiation risk

An advisory committee to the British government has called for private health clinics to immediately stop offering whole body scans to the "worried well", because they carry too great a radiation risk.

20 Dec 2007

Safer, more accurate, and more effective radiation therapy for pregnant women

Developing fetuses are extremely sensitive to radiation, which poses an impossible dilemma for expecting mothers in need of screening or treatment for cancer.

20 Dec 2007

Brains respond differently to thirst depending upon age

Twelve healthy subjects in their 60s and 70s showed a different pattern of brain activations during thirst and satiation than did 10 healthy subjects in their 20s who drank the same amounts and underwent imaging with positron-emission tomography (PET).

20 Dec 2007

PET/CT imaging proves golden for detecting cancer in children

PET/CT imaging exhibits significantly higher sensitivity, specificity and accuracy than conventional imaging when it comes to detecting malignant tumors in children, according to research published in the December issue of the Journal of Nuclear Medicine.

13 Dec 2007