RESUMEN
Vascular ectasias are characterized by abnormal blood vessel enlargement and presumed to be caused by degenerative processes. About 3% of lower gastrointestinal bleeding is caused by it. On endoscopy, colonic arteriovenous malformations are frequently solitary, sizable, flat, or raised red lesions. Conversely, colonic vascular ectasia that manifests as pedunculated polypoid lesions are rare. Case presentation: A 45-year-old woman presented with hematochezia and abdominal pain. Abdominal ultrasound and Contrast enhanced computed tomography abdomen, both showed features of ileocolic intussusception. Intraoperatively, an intraluminal pedunculated polypoid growth extending up to the hepatic flexure of the colon was discovered. A right hemicolectomy was performed, removing the polypoid growth as well. After histopathological evaluation, a final diagnosis of colonic polypoid vascular ectasia was made. Clinical discussion: Gastrointestinal bleeding is the common initial manifestation of vascular ectasia, while some individuals may continue to be asymptomatic. According to a study from July 2022, vascular ectasia that manifests as polypoid growth is an uncommon phenomenon that has only been documented in 17 other cases. An intussusception may have a polypoid vascular ectasia as its lead point. Conversely, a large polypoid vascular ectasia may have radiographic characteristics that resemble an intussusception. Conclusion: Large colonic vascular ectasia, which tends to enlarge over time, can occasionally be misinterpreted as an intussusception due to comparable radiological appearances. In the event that a polypoid colonic vascular ectasia is misidentified for intussusception, the surgical team must be ready to adjust the treatment protocol as needed.
RESUMEN
Pleomorphic adenoma is a common, benign neoplasm typically located in the major salivary glands. The external auditory canal is an atypical location for a pleomorphic adenoma to originate. Wide surgical excision is essential in cases of pleomorphic adenoma due to its tendency to recur and change into malignancy. We report a case of pleomorphic adenoma emerging in the external auditory canal, which is an atypical location for it to originate. A 23-year-old male presented with swelling and decreased hearing in the left ear for 2 months. On examination, there was a smooth, pink, firm swelling in the cartilaginous part of external auditory canal. Pure tone audiogram and computed tomography of temporal bone were performed. The patient underwent excision biopsy and the diagnosis of pleomorphic adenoma was confirmed after histopathology. Long-term follow-up is recommended as pleomorphic adenoma has the potentiality to recur or transform into malignancy.
