1/1035. Ectopic submandibular thyroid tissue.We reported a case of a 66 year-old male patient with a mass located in the right submandibular region. Surgical excision of the mass was performed and histologic examination revealed that the tumor was ectopic thyroid tissue. Additionally, imaging studies confirmed that the thyroid gland was found in its normal location and the patient had normal thyroid function testing. In reviewing the literature, we found submandibular thyroid tissue to be a rare entity with only 4 cases described. We discussed embryologic development of the normal thyroid gland and some explanations as to the origins of several forms of ectopic thyroid tissue, including that found in the submandibular region.- - - - - - - - - - ranking = 1keywords = ear (Clic here for more details about this article) |
2/1035. Primary breast carcinoma of the vulva: a case report and literature review.BACKGROUND: In 1872, Hartung was the first to describe the case of a fully formed mammary gland arising in the left labium majora of a 30-year-old woman. Since Hartung's initial report, 38 additional cases of ectopic vulvar breast tissue have been described. This case report describes the rare occurrence of primary mammary adenocarcinoma arising within the vulva. CASE: A 64-year-old G4P4 white female presented with a 4-year history of a 2 x 1 cm firm, indurated, raised lesion of the left lateral mons. A wide local excision with ipsilateral inguinofemoral lymphadenectomy was performed. Given histological findings characteristic of both invasive ductal carcinoma and invasive lobular carcinoma, in conjunction with the presence of estrogen and progesterone receptors within the tumor, a diagnosis of infiltrating adenocarcinoma arising within ectopic breast tissue was made. CONCLUSIONS: Thirty-nine reported cases of ectopic breast tissue arising within the vulva have been reported in the world literature. Though the diagnosis of primary breast carcinoma arising within the vulva is based primarily upon histologic pattern, estrogen and progesterone receptor positivity provide supporting evidence. Given the rarity of this condition, guidelines for therapy are unavailable; we therefore suggest looking to the current management of breast cancer in order to establish a sensible approach.- - - - - - - - - - ranking = 4.7463310484938keywords = cancer, ear (Clic here for more details about this article) |
3/1035. Ectopic hamartomatous thymoma. Report of a case with fine needle aspiration biopsy findings.BACKGROUND: Ectopic hamartomatous thymoma is a rare, benign tumor occurring exclusively in the supraclavicular and suprasternal regions. To the best of our knowledge, there are no English-language reports on its cytologic findings. CASE: A fine needle aspiration specimen from a mass in the suprasternal region in a 63-year-old male revealed epithelial cell nests, spindle cells, a cluster of mature adipocytes and a small number of lymphocytes. CONCLUSION: Although ectopic hamartomatous thymoma is very rare, fine needle aspiration cytology may contribute to the correct diagnosis in conjunction with the characteristic clinical findings.- - - - - - - - - - ranking = 1keywords = ear (Clic here for more details about this article) |
4/1035. Pharyngeal thyroid: a case report.A 48-year-old woman presented with dysphagia. On examination of the pharynx, a mass was visible behind and adjacent to the right tonsil. It was excised and proved to be ectopic thyroid tissue.- - - - - - - - - - ranking = 1keywords = ear (Clic here for more details about this article) |
5/1035. Salivary duct carcinoma in the mandible: report of a case with immunohistochemical studies.Salivary duct carcinoma is rare. We describe a 56-year-old man who developed salivary duct carcinoma in the mandible 10 years after removal of the right second and third molars. The tumour originated in the retromolar gland or the ectopic minor salivary gland in the mandible. The panoramic radiograph showed a radiolucent, poorly circumscribed area about 40 x 30 mm in size and distal to the lower right first molar. This tooth, together with all neoplastic tissue, was removed, and histopathological examination showed it to be a salivary duct carcinoma in the mandible. On immunohistochemical staining, keratin antibodies stained the ductal structure, 1A4 antibody stained myoepithelial cells, but S-100 protein and vimentin were not seen. The patient was well and with no sign with recurrence 6 years postoperatively.- - - - - - - - - - ranking = 3keywords = ear (Clic here for more details about this article) |
6/1035. Intrapancreatic accessory spleen. A rare cause of a pancreatic mass.CONCLUSION: The clinical significance of intrapancreatic accessory spleens resides in the mimicry of pancreatic cancer. Radionuclide tests (octreotide scan and Tc99m sulfur colloid scan) should be undertaken to distinguish these lesions from neuroendocrine tumors, hypervascular metastases and pancreatic carcinoma. If the tests are equivocal, diagnostic laparotomy or laparoscopy is recommended. BACKGROUND: Despite its relatively common occurrence, intrapancreatic ectopic splenic tissue is rarely detected owing to its asymptomatic nature. methods: We report a case of a clinically asymptomatic patient in which abdominal computed tomography (CT) scans revealed a mass of 1.5 cm in diameter in the distal pancreas. The tumor markers CA 19-9 and carcinoembryonic antigen (CEA) were slightly elevated, and pancreatic neoplasm was suspected. RESULTS: Left pancreatic resection and splenectomy were performed. The removed specimen disclosed the presence of an accessory spleen within the pancreatic tail.- - - - - - - - - - ranking = 4.3347999337248keywords = neoplasm, cancer (Clic here for more details about this article) |
7/1035. Laparoscopic resection for ectopic gastric mucosa of the duodenum: report of a case.We report herein the case of a 53-year-old man in whom ectopic gastric mucosa was successfully resected laparoscopically. radiography and endoscopy showed a well-demarcated and sessile polypoid lesion measuring 2.0 cm in diameter in the second part of the duodenum. Under the diagnosis of a submucosal tumor of the duodenum, a wedge resection of the duodenum was performed laparoscopically. Subsequent histological examination revealed that the tumor was ectopic gastric mucosa of the duodenum.- - - - - - - - - - ranking = 1keywords = ear (Clic here for more details about this article) |
8/1035. Progression of myelinated retinal nerve fibers.PURPOSE: To present a case demonstrating progression of retinal nerve fiber myelin and to suggest that myelinated retinal nerve fibers be considered among the peripapillary choristomas. METHOD: Case report. A 46-year-old woman demonstrated progression of myelinated retinal nerve fibers and associated retinal vascular anomalies. RESULTS: Myelinated retinal nerve fibers can be progressive. We confirm earlier reports of vascular anomalies associated with retinal nerve fiber myelin and show that they can also be progressive. CONCLUSIONS: The rarely progressive nature of myelinated retinal nerve fibers and the histopathologic studies published to date suggest that myelinated retinal nerve fibers represent a striking ophthalmoscopic feature resulting from ectopic oligodendrocytes; thus, the entity may be described as an oligodendrocytic choristoma.- - - - - - - - - - ranking = 2keywords = ear (Clic here for more details about this article) |
9/1035. Hemosuccus pancreaticus in a heterotopic jejunal pancreas.Heterotopic pancreas is a congenital anomaly defined as pancreatic tissue occurring outside its normal anatomical location, lacking both anatomic and vascular connections. Ninety percent of heterotopic pancreas is found in the upper part of the gastrointestinal tract. Symptoms, when present, are normally non-specific and include abdominal pain, nausea, vomiting and bleeding. However, aberrant pancreas is not often recognized as patients are usually symptom-free. We report on a 29 year-old man with acute and severe gastrointestinal hemorrhage through the duct of an aberrant pancreas located in the upper jejunum, without clinical or histological evidence of pancreatic inflammation. We believe that our case is the first description of a pancreatic ductal hemorrhage in an aberrant pancreas.- - - - - - - - - - ranking = 1keywords = ear (Clic here for more details about this article) |
10/1035. A case of aberrant pancreatic cancer in the jejunum.We report a case of aberrant pancreatic cancer of the jejunum in a 63 year-old man. The patient was admitted to our hospital with epigastric discomfort and vomiting due to obstruction of the jejunum. laparotomy revealed a submucosal tumor on the jejunum with multiple liver metastases. Histological examination showed the tumor to be a well differentiated tubular adenocarcinoma originating from aberrant pancreatic tissues lacking islets. Only 1 case of aberrant pancreatic cancer in the jejunum has been previously reported in the literature.- - - - - - - - - - ranking = 11.477986290963keywords = cancer, ear (Clic here for more details about this article) |
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