ABSTRACT
We report on two patients presenting with gastrointestinal stromal tumors (GIST). The important tumor size and the marked tissular hypersignal seen on T2-weighted magnetic resonance images (MRI) should be considered as magnetic resonance (MR) features strongly indicating diagnosis of GIST.
Subject(s)
Gastrointestinal Stromal Tumors/diagnosis , Magnetic Resonance Imaging/methods , Aged , Aged, 80 and over , Biopsy , Contrast Media , Diagnosis, Differential , Female , Gadolinium DTPA , HumansABSTRACT
In connection with six cases of colorectal lymphomas, including five cases of non-Hodgkin lymphomas (3 primary, 2 secondary), and one case of Hodgkin's disease, the authors review the literature concerning the general features and radiological aspects of these pathologies. The radiological signs observed during barium enemas for non-Hodgkin lymphomas are as follows: a small nodular pattern, frequently with multiple lesions (45.7% of cases), a diffuse or infiltrating pattern (25.4%), a filling defect (22.9%), endo- and exo-luminal images (17.8%), ulcerating patterns (3.4%) and a pure mesenteric form (0.8%). Thus, associated radiological forms are present in 16% of cases. The preferential site is the caecum (52.5% of cases), followed by the rectum (21.2%). Colonic or rectal involvement by Hodgkin's disease is extremely rare. From a radiological viewpoint, the most frequently described pattern in the literature is an infiltrating lesion which may or may not cause stenosis; the most frequent site is the caecum.
Subject(s)
Adenocarcinoma/diagnostic imaging , Colonic Neoplasms/diagnostic imaging , Lymphoma/diagnostic imaging , Rectal Neoplasms/diagnostic imaging , Adenocarcinoma/pathology , Aged , Barium Sulfate , Colonic Neoplasms/pathology , Colonic Neoplasms/secondary , Female , Hodgkin Disease/diagnostic imaging , Humans , Male , Rectal Neoplasms/pathology , Rectal Neoplasms/secondary , Tomography, X-Ray ComputedABSTRACT
The association of a drug related hypersensitive vasculitis followed two years later by angio-immunoblastic lymphadenopathy is reported. The hypothesis of a similar pathogenesis of these two conditions is discussed.