Improving Joint Learning of Chest X-Ray and Radiology Report by Word Region Alignment.

Self-supervised learning provides an opportunity to explore unlabeled chest X-rays and their associated free-text reports accumulated in clinical routine without manual supervision. This paper proposes a Joint Image Text Representation Learning Network (JoImTeRNet) for pre-training on chest X-ray images and their radiology reports. The model was pre-trained on both the global image-sentence level and the local image region-word level for visual-textual matching.

Pneumothorax: a classical presentation of metastatic scalp angiosarcoma.

Metastatic pulmonary angiosarcomas frequently present with pneumothorax, especially those arising from the scalp. The metastases on chest radiographs are initially subtle and easily missed. Computed tomographic scans can show a spectrum of diagnostic findings that may be misinterpreted because of a lack of awareness related to the rarity of the disease.

Awareness of hypertension among the medical students and junior doctors--a multicenter study from Pakistan.

Objectives: To evaluate the awareness of hypertension among medical students and junior doctors in Karachi, Pakistan.

Methods: This cross-sectional study was conducted using a structured questionnaire consisting of eleven multiple choice questions, encompassing major aspects of hypertension such as the definition, diagnosis, treatment, complications and risk factors. This survey was conducted from June to August 2010 on final year medical students of Dow University of Health Sciences and interns and residents working at four tertiary care hospitals.

Dynamics of some common epidemics in Karachi, Pakistan.

Objective: To examine the severity, frequency, monthly variability and grouping of some common epidemics and its relation to hygienic conditions and life style of the people in Karachi.

Methods: This ecological study was conducted from 2006 to 2009. Data was obtained from five different localities of Karachi.

Actinomycosis esophagitis in a patient with persistent dysphagia.

Many causes of esophagitis exist in immunocompromised patients. Uncommon pathogens must be considered to facilitate timely and appropriate therapy. A limited number of cases of esophageal actinomycosis have been reported.

Does diabetes alter the radiological presentation of pulmonary tuberculosis.

Objective: The aim of this study is to determine whether diabetes mellitus (DM) alters the radiological manifestations of pulmonary tuberculosis (TB).

Methods: A retrospective review of the medical records and skiagrams of 692 consecutive smear positive pulmonary TB patients admitted in the Sahary Chest Hospital, Riyadh, Kingdom of Saudi Arabia, from January 1998 to December 1999, was performed. One hundred and eighty-seven (27%) patients had an associated DM.