Pericardial tumors are very rare. It can be primary or secondary, of which secondary tumors are more common. Pericardial hemangiomas are extremely rare primary neoplasms and there are only very few cases published in the literature. These patients can be asymptomatic. When symptomatic, they present with dyspnea, palpitation, or atypical chest pain. Severity of symptoms depends on the size and location of the tumor. Pericardial effusion with features of cardiac tamponade can lead to a life-threatening situation. Here, we report a case of pericardial hemangioma in a patient who presented with breathlessness and tamponade which was diagnosed preoperatively with computed tomography.

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Hypersecretion of gastrin from duodenal or pancreatic gastrinomas results in a rare clinical entity called Zollinger–Ellison syndrome (ZES). It mostly presents with abdominal pain and diarrhea. ZES may be sporadic or occur in association with multiple endocrine neoplasia type 1. Usually, ZES manifests between 20 and 50 years.We report two cases of patients who presented with abdominal pain, vomiting, watery diarrhea, and significant weight loss.

Background Gastrointestinal stromal tumors (GISTs) are the most common gastrointestinal mesenchymal neoplasms which can arise from any part of the gastrointestinal tract (GIT) or an extraintestinal location. Size and the organ of origin are the major imaging inputs expected from the radiologist. However, it is worthwhile to find out which imaging characteristics on MDCT correlate with risk stratification. This knowledge would help the clinician in treatment planning and prognostication. The aim of this retrospective study is to evaluate the various MDCT imaging characteristics of GISTs and find out which parameters have significant association with risk and subsequent development of metastasis on follow-up whenever it was possible. Materials and Methods This is a retrospective study conducted on 45 histopathologically proven cases of GIST from two institutions by searching from the digital archives. The following imaging parameters were analyzed: maximum size in any plane, organ of origin, shape (round, ovoid or irregular), margin (well-defined or ill-defined), surface (smooth or lobulated), percentage of necrosis, growth pattern, enhancement characteristics–both intensity (mild, moderate or significant) and pattern (homogenous vs. heterogenous), calcification, infiltration into adjacent organs, and presence of metastasis at presentation or on follow-up. Results CT morphological parameters of significance in risk stratification as per our study include tumor necrosis, predominant cystic change, irregular and lobulated shape/surface characteristics, and adjacent organ infiltration.The parameters which were associated with development of metastasis were size > 5 cm, necrosis > 30%, and the presence of adjacent organ infiltration. Conclusion The radiologist has an important role in ascertaining the size of tumor as well as the organ of origin accurately to guide the clinician in risk calculation and subsequent prognostication. In addition, certain CT characteristics mentioned above, namely, tumor size, significant necrosis/cystic changes, irregular/lobulated contour, and invasion of adjacent organs, help in risk stratification and in predicting metastasis/poor prognosis.

Acute toxic leukoencephalopathy can be due to a variety of endogenous and exogenous agents. Chemotherapy-induced toxic leukoencephalopathy is often encountered in clinical practice with the widespread use of various chemotherapeutic agents. Since initial clinical findings may be nonspecific, magnetic resonance imaging can be useful in the pattern recognition of white matter injury as well as to rule out its close differentials. Early diagnosis is important since prompt removal of the inciting agent and supportive therapy can reverse this condition, while delay can result in a poor prognosis. Here, we report a case of chemotherapy-induced toxic leukoencephalopathy in a patient with metastatic adenocarcinoma of the rectum from an imaging perspective.