Primary malignant tracheal tumors are not common and adenoid cystic carcinoma (ACC) of trachea is rare. We report an extremely rare case of ACC of proximal trachea, which was diagnosed in a 42-year-old male who presents with 6-month history of dyspnea. Lateral skiagram of neck, computed tomography, and magnetic resonance imaging revealed a broad-based polypoidal soft tissue mass arising from posterior wall of the proximal trachea. Biopsy confirmed the diagnosis of ACC. The patient was treated by surgical resection followed by radiotherapy and is on regular follow-up. Follow-up at 18 months post-treatment showed no local recurrence or distant metastases. The literature on tracheal ACC is reviewed. Image findings are briefly discussed.
The MR imaging findings in a patient with non-Hodgkin's lymphoma with unusual involvement of the sella, pituitary stalk and left parasellar region are reported here. On the basis of the MR imaging findings, the initial differential diagnosis included invasive pituitary adenoma, a granulomatous lesion and en plaque meningioma. Trans-sphenoidal biopsy of the sellar mass showed chronic inflammatory changes and the patient was initially treated for tuberculosis. Because follow-up imaging showed the lesion to be progressive, a biopsy was done of an enlarged right inguinal lymph node. This revealed non-Hodgkin's lymphoma.
Midgut malrotation is a rare anatomic anomaly that complicates the diagnosis and management of acute abdominal pain. It is a congenital anomaly that arises from incomplete rotation or abnormal position of the midgut during embryonic development. A two years old boy was brought with recurrent abdominal pain and vomiting. On ultrasonography, the intestinal malrotation was suspected and thus contrast enhanced computed tomography (CECT) was done. On CECT, abnormal relationship between the superior mesenteric artery (SMA) and superior mesenteric vein (SMV), colon on the left side of the abdominal cavity, 'Whirlpool sign' etc., were found. All findings were suggestive of midgut malrotation with volvulus. Detection of uncomplicated malrotation should not be trivialized because such patients might experience a future complication.
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