Cases reported "Choristoma"

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11/174. Dual thyroid ectopy: case report and review of the literature.

    Dual ectopic thyroid glands rarely occur, and only six cases have been reported in the literature. The authors describe a 14-year-boy who had a midline neck swelling for 8 to 9 years. The swelling increased gradually, but he had no pressure symptoms. The thyroid hormone profile showed a moderately increased thyroid-stimulating hormone value and normal T3 and T4 levels. A Tc-99m sodium pertechnetate thyroid scan showed dual ectopic thyroid glands in the sublingual and subhyoid regions.
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keywords = neck
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12/174. Papillary carcinoma of the base of the tongue. Case clinic.

    Ectopic lingual thyroid tissue is an uncommon developmental anomaly. Tumours of identical pathological characteristics as those arising in the eutropic thyroid tissue, may be present in ectopic locations. There are very few cases of malignant tumours reported in the literature. Here we report a review of this pathology and we describe a case of a papillary carcinoma of the base of the tongue, located in ectopic lingual thyroid tissue, in a 66 year-old white man, complaining of dysphagia and oral bleeding. Surgical treatment was carried out, consisting of radical resection of the right hemineck, tumour resection, right hemiglossectomy and total thyroidectomy. Postoperative treatment with 131I and substitutive thyroid hormonal therapy was prescribed.
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keywords = neck
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13/174. Ectopic hamartomatous thymoma: a case study and review of the literature.

    Ectopic hamartomatous thymoma is a rare and distinctive tumor found in the deep soft tissues of the neck, which is characterized histopathologically by a mixture of spindle, epithelial, and adipose cell elements. We present a case of this lesion occurring in a 39-year-old male. The characteristic histochemical and immunohistochemical findings of these tumors are demonstrated. In addition, review of the reported histological, immunohistochemical and ultrastructural findings is presented together with a table of clinical findings in the tumors so far described. A brief discussion of theories of histogenesis and possible differential diagnosis is included.
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ranking = 1
keywords = neck
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14/174. Ectopic thymic cyst in the neck.

    Ectopic thymic tissue in the neck is rarely reported in medical literature. This paper presents the case of a young female, who presented with a soft, fluctuating mass in the left side of her neck. Surgical excision revealed an ectopic thymic cyst. Ectopic thymic tissue may be an infrequent finding, but it should be included in the differential diagnosis of neck masses, especially in children. This case report is accompanied by a short review of the relative literature.
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ranking = 7
keywords = neck
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15/174. Aberrant cervical thymus in an infant: an unusual cause of stridor.

    We report an 8-month-old infant presenting with stridor caused by a nonpalpable neck mass discovered at imaging and surgery. The diagnosis of aberrant thymic tissue was confirmed at histopathology. The authors reviewed the literature and discuss the embryology, imaging findings and differential diagnosis of this rare disorder.
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ranking = 1
keywords = neck
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16/174. Ectopic adrenals in a sirenomelic fetus.

    A sirenomelic malformation was diagnosed in a fetus from the first pregnancy of a 25-year-old woman, and it was aborted at the 24th week of gestation. The fetus represented a sympus monopus. The head, organs of the neck, the thorax, and the upper part of abdominal cavity were normally formed. The kidneys, the ureters, the urinary bladder and the urethra were not developed. Adrenals of discoid shape and normal size were present in the normal position. The large bowel ended blindly in the sigmoid colon. Both testes were found in their normal position in the pelvis. Two symmetrical structures, resembling ovaries in shape and colour, were found near the testes. Histological examination established that these two organs were accessory (aberrant) adrenals.
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ranking = 1
keywords = neck
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17/174. Salivary gland choristoma of the anterior chest wall.

    Salivary gland choristoma (heterotopic salivary gland tissue) is a rare condition that occurs at various locations within the head and neck. Diagnostic criteria and embryogenesis of this entity remain unclear. Presented herein is the first reported case of salivary gland choristoma on the anterior chest wall. Surgical treatment is recommended.
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ranking = 1
keywords = neck
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18/174. Relapsing pancreatitis in a child duplication in an aberrant pancreatic lobe.

    An aberrant pancreatic lobe associated with an enteric duplication cyst is a rare cause of relapsing pancreatitis in childhood. We present an 8-year-old boy with relapsing pancreatitis caused by this rare congenital foregut anomaly. The computed tomography (CT) findings revealed an unusually long segment of aberrant pancreatic lobe arising from the pancreatic neck, projecting anteriorly at a distance to a cystic duodenal duplication and appearing as an inflammatory mass. There has been no previous report of this unusual appearance on CT. Appreciation of the relevant anatomy provided by CT led to the successful management of this surgically-treatable cause of relapsing pancreatitis.
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ranking = 1
keywords = neck
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19/174. Thyroid papillary carcinoma in lateral neck cyst: missed primary tumour or ectopic thyroid carcinoma within a branchial cyst?

    We report a case of thyroid papillary carcinoma lying within a lateral cervical cyst for which no occult primary tumour of the thyroid was identified. We explore the possible diagnoses and include a discussion of how ectopic thyroid tissue may come to lie within a branchial cyst.
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ranking = 4
keywords = neck
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20/174. Ectopic cervical thymic tissue: diagnosis by fine needle aspiration.

    Cervical thymic masses are congenital lesions that result from aberrant thymic migration during embryogenesis. Although most of these masses are asymptomatic, they may cause debilitating symptoms secondary to encroachment on adjacent aerodigestive structures. Preoperative diagnosis of ectopic thymic tissue is rare; most cases are clinically misinterpreted as branchial cleft remnants or cystic hygromas. Definitive diagnosis has relied on histopathologic examination in nearly all reported cases. However, the invasiveness of open incisional or excisional biopsy carries the risk of surgical and anesthetic complications. Inadvertent surgical thymectomy may result in cell-mediated immune deficiencies in infants and young children. The utility of fine needle aspiration is gaining wider acceptance in the diagnostic evaluation of neck masses. We describe an infant with an asymptomatic cervical thymic mass diagnosed by fine needle aspiration.
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ranking = 1
keywords = neck
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