Cases reported "Choristoma"

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1/248. Pseudocapsulorrhexis in a patient with iridocorneal endothelial syndrome.

    We describe a patient with Chandler's syndrome variant of the iridocorneal endothelial syndrome in whom ectopic Descemet's membrane was found intraoperatively on the anterior surface of the lens. Initially, the membrane was confused with the anterior lens capsule during extracapsular cataract extraction, leading to the performance of a pseudocapsulorrhexis. Electron microscopy disclosed that the epilenticular membrane was composed of multiple layers of abnormal basement membrane consistent with the iridocorneal endothelial syndrome.
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2/248. Nasal gliomas: main features, management and report of five cases.

    Nasal gliomas are neurologic malformations that should be considered in the presence of a congenital nasal mass. Appropriate pre-operative examination must be performed to identify a possible connection with CNS, which is present in 15-20% of the cases. This examination should determine whether initial craniotomy is necessary. Here, we report five cases and review the main characteristics and management of this pathology.
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3/248. 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.
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4/248. Follicular carcinoma in ectopic thyroid gland. A case report.

    Ectopic thyroid rest can be seen anywhere along the path of descent of the gland. The most ectopic thyroid tissue is a thyroglossal duct cyst associated with normal thyroid gland. Sublingual location is less common than a lingual ectopia. True malignant transformation in ectopic thyroid tissue is extremely rare. Such a malignancy is virtually always diagnosed only after surgical excision of the lesion at pathological examination. This report discusses a case of ectopic thyroid follicular carcinoma in the right submandibular region in the absence of orthotopic thyroid, discovered by chance after the surgical excision performed for a preoperative ultrasonically and cytologically misdiagnosed submandibular gland adenocystic carcinoma. The possible aetiology of such an unusual anatomical relationship is discussed as well as the importance of thyroid scanning, ultrasound and/or CT in neck lumps.
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5/248. Transposition of the lingual thyroid: A new alternative technique.

    BACKGROUND: In symptomatic lingual thyroid, surgical transposition of the gland with its vascular supply intact seems to have superior results to those obtained by surgical ablation and autotransplantation. However, the procedure should be simple, reproducible, reliable, and cause less morbidity as well as providing simple access to and evaluation of the gland postoperatively. methods: We present the case of a 33-year-old female with lingual thyroid who was treated by transposing the whole gland to the lateral pharyngeal wall through a lateral pharyngotomy incision. The transposed lingual thyroid was nourished by a random tongue muscle pedicle flap. RESULT: At the 5-month postoperative stage, iodine scanning reviewed the radioactivity uptake of the transposed gland. Even though the patient was not on postoperative thyroid hormone supplement, her thyroid function gradually returned to normal after initially showing hypothyroid postoperatively. CONCLUSION: This new technique for transposition of lingual thyroid is simple and reliable and should be considered as an alternative method in the management of symptomatic patients.
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6/248. Phakomatous choristoma may be located in the eyelid or orbit or both.

    PURPOSE: Phakomatous choristoma is a rare congenital tumour of lenticular origin. The exact location at clinical presentation is controversial, but herein we provide evidence that phakomatous choristoma may be located in the lower eyelid or orbit or both. methods: Case report of an infant presenting with a mass in the lower eyelid at birth, a systematic review of previous cases of phakomatous choristoma and an outline of the histopathological features in normal mid-facial embryonic development at different gestational ages. RESULTS: The histopathological features of the present case were consistent with those of a phakomatous choristoma. The preoperative imaging studies and clinical findings at surgery suggested that the tumour occupied parts of both the lower eyelid and anterior orbit. Histopathological sections of a normal human embryo showed that at the 26-mm stage of development the embryonic lens is formed but the bony walls defining the orbit are not yet present. CONCLUSION: Phakomatous choristoma arises in a setting of undifferentiated mesenchymal tissue which later may develop into the lower eyelid or orbit depending on the choristomatous elements being deposited superficial or deep to the embryonic surface.
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7/248. Salivary gland choristoma in the middle ear: a case report.

    Salivary gland choristoma (ectopic or heterotopic salivary gland tissue) is a rare condition that occurs in various locations within the head and neck regions. We present a 13-year-old boy with a salivary gland choristoma in the middle ear associated with congenital alopecia around the auricle in addition to facial nerve and ossicular chain abnormalities. Because the lesions commonly involve the facial nerve, intraoperative facial nerve monitoring is helpful in allowing safe biopsy without facial nerve damage.
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8/248. Hyperfunctioning intrathyroid parathyroid adenoma: report of two cases.

    We report herein two cases of intrathyroid parathyroid adenoma, which is a rare condition in patients with hyperparathyroidism. In the first patient, an excised intrathyroid nodule was diagnosed to be parathyroid adenoma postoperatively. In the second patient, preoperative localization studies suggested the possibility of an intrathyroid adenoma. When a pathological gland is not found during surgery for primary hyperparathyroidism, an ectopic parathyroid gland including an intrathyroid adenoma should thus be considered.
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9/248. Ectopic thymus presenting as a solid submandibular neck mass in an infant: case report and review of literature.

    Solid ectopic cervical thymus is an extremely uncommon etiology of a neck mass in an infant. It occurs in the line of descent of the thymus from the angle of the mandible to the superior mediastinum. Nine cases of ectopic cervical thymus in infants have been reported in the literature. Only two of nine cases were solid, the remaining seven were thymic cysts. A preoperative diagnosis is seldom considered and is often misdiagnosed as a possible malignancy or a lymph node. We present a case of a 2-month-old infant with an asymptomatic enlarging right neck mass. Patient underwent complete excision of the mass.
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10/248. Heterotopic gastric mucosa in the upper esophagus ("inlet patch"): a rare cause of esophageal perforation.

    We report the case of a 21-yr-old woman who presented with a perforation of an upper esophageal ulcer on a patch of gastric-type mucosa. Despite surgical closure of the perforation and reinforcement with a pleuro-muscular flap the patient developed an esophageal leakage and died in the postoperative period. Heterotopic gastric mucosa in the upper esophagus is usually an asymptomatic abnormality, discovered incidentally during endoscopic studies carried out for some other reason; however, complications secondary to the inlet patch acid secreting capacity can arise, and this has to be kept in mind to elude life-threatening conditions.
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