[Isolated bronchial oxalosis as a diagnostic clue to chronic necrotizing pulmonary aspergillosis]

Calcium oxalate crystals deposition in tissues has been reported in association with enzymatic, nutritional and metabolic disorders. In some cases, oxalosis is associated with aspergillosis. We report a case of bronchial oxalosis occurring secondary to a non-invasive chronic necrotizing pulmonary aspergillosis in a 62-yearold female patient with chronic obstructive pulmonary disease. In this case, bronchial oxalate deposition, identified on histopathologic and cytopathologic specimens, preceded by far the identification of aspergillus hyphae. Chronic pulmonary aspergillosis affects patients who are mildly immunocompromised and is rarely associated with calcium oxalate deposition. Oxalosis may be accompanied by tissue necrosis, explaining a potential fulminant evolution of this disease

Parotid tumors: is surgery always the only way?

To analyze the characteristics and management of parotid tumors in a tertiary care center

Study design: Retrospective cohort study

Methods: All cases of parotid tumors [or masses] in our department between Jan 1, 1999 and December 31[st], 2012 were studied. Demographic data, clinical characteristics, histopathology and management were analyzed. We also evaluated the diagnostic value of fine needle aspiration cytology [FNAC] in our center

Results: Of the 216 parotid tumors, 164 underwent parotidectomy and 52 were not managed surgically; 73.1% had a benign tumor [36.6% had Warthin's tumor] and 16.7% had a malignant one. In our center, FNAC was found to have a sensitivity for reporting malignancy of 71.4% and a specificity to rule in malignancy of 100%

Conclusion: In our series, Warthin's tumor was the most frequent mass probably related to the high tobacco use. The prevalence of malignant tumors was relatively high in our series. Primary malignant tumors and pleomorphic adenomas should always be treated surgically, however, lymphomas, metastatic and benign inflammatory masses and cases of Warthin's tumors could be managed nonsurgically

Retroperitoneal cystic lymphangiomas in adults: four case reports and review of the literature

Retroperitoneal location of cystic lymphangiomas in adult patients is rare. Their clinical presentation is not specific. Magnetic resonance imaging is the best radiological exam for the diagnosis. These tumors must be distinguished from mesenteric cysts which are more frequent and can degenerate. The authors report four cases of retroperitoneal cystic lymphangioma with a literature review

Tumeurs de vessie: Tribulations des nouvelles classifications histologiques.

Bladder cancer is a public health problem because of its increasing incidence. The histological grade being an important prognostic parameter in evaluating mainly superficial, non-infiltrative, urothelial tumors, it is of great interest to define a reproducible classification that can be made available to oncologists, urologists and family doctors as well. New classifications have been recently proposed. They will be discussed here. It will be argued that the current classification is still valid and should be maintained