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PubMed2006

Tuberculosis of the thyroid gland: review of the literature.

OBJECTIVE: Thyroid tuberculosis (TTB) is a very rare condition, even in countries with a high prevalence of tuberculosis. The aim of this article is to review and retrieve data about thyroid tuberculosis from the English-language literature in order to gain a better understanding of the clinical characteristics of TTB. STUDY DESIGN: We performed Medline, PubMed, and library searches using the key words "thyroid tuberculosis," "throid disease," "tuberculosis and thyroid." Reference lists of the articles obtained and previous reviews were also examined. RESULTS: We retrieved 76 cases matching our selection criteria from the search. Review of the cases with TTB revealed a slight female preponderance. The patients reported in the literature ranged in age from 9 to 83 years, with a median age of 40+/-16 years for men and 44+/-17 years for women. In the articles surveyed, TTB presented with a broad spectrum of manifestations, ranging from an isolated nodule to thyrotoxicosis. It seems that diagnosis of thyroid tuberculosis has recently been increasing, perhaps because of the growing incidence of tuberculosis and the diagnostic use of fine-needle aspiration cytology in the diagnosis. Although, in the past, the diagnosis was generally made by the examination of the specimens, at present, fine-needle aspiration cytology seems to be a useful method in diagnosis tuberculous thyroiditis. The role of surgery is limited after the diagnosis. The choice of treatment should be medical antituberculous therapy. CONCLUSIONS: Preoperative diagnosis of thyroid tuberculosis is important because of the availability of medical treatment and the limited role of surgery. This condition should be kept in mind in evaluating patients with a thyroid nodule, in communities where the prevalence of tuberculosis is high.

Adolescent↗
PubMed2006

Differentiation between tuberculosis and primary tumors in the adrenal gland: evaluation with contrast-enhanced CT.

The aim of the present study is to determine imaging criteria for differentiating tuberculosis from primary tumors in the adrenal gland on contrast-enhanced CT. Non-contrast and contrast-enhanced CT features in 108 patients with adrenal tuberculosis (n = 34) and primary tumor (n = 74) were retrospectively assessed for the location, size, calcification and enhancement patterns. The primary tumors included 41 adenomas, 11 pheochromocytomas, 4 carcinomas, 3 lymphomas, 6 myelolipomas, 6 ganglioneuromas, 2 neurilemmomas and 1 ganglioneuroblastoma. Biochemical investigation was performed for all patients. Of the tuberculosis cases, 31 (91%) invaded with bilateral involvement, while 7 (9%) of the primary tumors invaded with bilateral involvement (P < 0.001). Tuberculosis often showed calcification (20 of 34; 59%), whereas primary tumors infrequently showed calcification (6 of 74; 8%; P < 0.001). Low attenuation in the center with peripheral rim enhancement was more commonly seen in tuberculosis (16 of 34; 47%) than in primary tumors (7 of 74; 9%; P < 0.001). In the determination of tuberculosis, the highest sensitivity (91%) and accuracy (91%) were obtained with bilateral involvement, and the highest specificity (99%) was obtained with the contour preserved. In the determination of primary tumors using a combination of having unilateral involvement and being mass-like, the outcome was a sensitivity of 91%, specificity of 94% and accuracy of 92%. CT findings can differentiate tuberculosis from a primary tumor of the adrenal glands with high sensitivity and an acceptable specificity when combined with the endocrinological examination.

Adolescent↗
PubMed2001

Solitary pancreatic tuberculosis mimicking advanced pancreatic carcinoma.

A 40-year-old woman was referred for pancreatic head carcinoma invading the portal vein. The dichotomy between the radiological findings and the general condition of the patient, as well as the laboratory results (no evidence of cholestasis), cast doubt on the diagnosis. There was no history of tuberculosis. The chest radiograph revealed no pathological findings. The anatomic relationships of the lesion entailed a high risk of vascular injury if tissue biopsy were to be done; therefore, diagnostic laparotomy was performed. Biopsy revealed granulomas with caseous necrosis, consistent with tuberculosis. After 6 months of antituberculosis treatment, the lesions had completely resolved. Tuberculosis should be considered in the differential diagnosis of pancreatic masses, particularly in regions where the disease is endemic. The condition usually resembles an advanced pancreatic tumor. Performing a biopsy of inoperable lesions and maintaining a reasonable skepticism in regard to the evaluation of operable lesions (attention to nonexclusive but helpful clues, such as young patient age, history of tuberculosis, absence of jaundice) will lead to the diagnosis in most patients. Diagnostic laparotomy may be required in a small subset of patients. The response to antituberculosis treatment is very favorable. The role of resection (e.g., pancreatoduodenectomy) is very limited.

Adenocarcinoma↗
PubMed1985

Clinical clues to the cause of Addison's disease.

Tuberculosis and other potentially treatable diseases remain important causes of adrenal insufficiency. Knowledge of the cause of adrenal destruction, although often difficult to ascertain clinically, is necessary for appropriate management. Clinical data are reviewed in eight patients with Addison's disease who underwent computed tomographic scanning and in 31 additional patients with Addison's disease in whom autopsy was performed. Seven of eight patients (87 percent) with tuberculous Addison's disease of no greater than two years' duration had enlarged glands whereas patients with longer duration of disease had smaller or normal-sized glands. Adrenal enlargement was also found in five of six (87 percent) subjects with carcinomatous replacement of the adrenal glands. The adrenal glands were small or undetectable in each of 16 patients with idiopathic Addison's disease. Adrenal calcification was found in nine of 17 (53 percent) tuberculous patients and was not found in any of the 22 other patients. Duration of adrenal disease, adrenal size on computed tomographic scanning, and presence of adrenal calcification were useful clues to the cause of Addison's disease.

Addison Disease↗
PubMed1990

Tuberculosis of the thyroid bed presenting as recurrent medullary thyroid carcinoma.

A 69-year-old lady with previous medullary thyroid carcinoma treated by total thyroidectomy alone developed a swelling in the neck. This was thought to be a recurrence of her carcinoma but was found on investigation to be a tuberculous abscess of the thyroid bed. She was treated successfully by surgical drainage and antituberculous chemotherapy.

Abscess↗
PubMed1993

Tuberculous Addison's disease. Utility of CT in diagnosis and follow-up.

The computed tomographic (CT) findings in five patients with tuberculous Addison's disease were evaluated. All patients had extra-adrenal tuberculosis. Two patients had enlarged adrenal glands with calcifications at the times of diagnosis. Follow-up CT from 4 to 30 months showed a progressive decrease in the size of adrenal glands from bilateral enlargement to small calcified glands and provides a clue to the etiology of Addison's disease and proper therapy.

Addison Disease↗
PubMedDate not supplied

CT in adrenal enlargement due to tuberculosis: a review of literature with five new cases.

Tubercular adrenalitis presents with adrenal enlargement prior to its atrophy and calcification. Imaging modalities like ultrasound, computerized tomography (CT), and magnetic resonance imaging have depicted adrenal enlargement due to various causes. Presented is a clinical-cum-CT review of 14 cases of tubercular adrenal enlargement with addition of five new cases and their CT follow-up.

Addison Disease↗
PubMed2006

Addison's disease due to adrenal tuberculosis: contrast-enhanced CT features and clinical duration correlation.

PURPOSE: To describe CT morphology of untreated adrenal tuberculosis during the different stages of the natural history of the disease and to evaluate the diagnostic implications of CT features. MATERIALS AND METHODS: We retrospectively evaluated CT features in 42 patients with documented adrenal tuberculosis for the location, size, morphology, and enhancement patterns shown on CT images. The clinical duration were correlated with the CT features. RESULTS: Of the 42 patients with untreated adrenal tuberculosis, bilaterally enlarged adrenal glands were revealed in 38 cases (91%), unilaterally enlarged in 3 cases (7%), and normal size in 1 case (2%). Of the 41 cases (98%) with enlargement, mass-like enlargement was seen in 20 cases (49%) and enlargement with preserved contours in 21 cases (51%). Peripheral rim enhancement presented in 22 cases (52%) on contrast-enhanced CT. Non-enhanced CT scan revealed calcification in 21 cases (50%). As the duration of Addison's disease increased, the presence of calcification and contour preservation increased concomitantly (p<0.001), whereas peripheral rim enhancement and mass-like enlargement decreased concomitantly on CT images (p<0.001). CONCLUSION: CT may be helpful in diagnosing adrenal tuberculosis when clinically suspected, and CT features are correlated to the clinical duration of Addison's disease.

Addison Disease↗
PubMed2005

[Thyroid tuberculosis].

OBJECTIVES: The aims of this study were to emphasize the difficulties of diagnosing thyroid tuberculosis because of its non specific symptoms and to encourage physicians to seek it more frequently. MATERIAL AND METHODS: Six cases of thyroid tuberculosis diagnosed within a 3-year period were included in a retrospective study. RESULTS: There were two men and four women, mean age 45 years. Four patients underwent lobo-isthmectomy with frozen section analysis which enabled us to rectify the diagnosis. Medical treatment was based on a 6-month course of bactericidal chemotherapy. Outcome was favorable in all the cases with 17 months average follow up. CONCLUSION: Symptoms of thyroid tuberculosis are misleading, pathologic findings are of increasing importance for diagnosis, which with the new serology techniques may improve further.

Adult↗
PubMedDate not supplied

[Developmental adrenal tuberculosis. Value of x-ray computed tomography].

Two cases of Addison's disease secondary to active adrenal tuberculosis are reported. Computed tomography showed hypertrophy of the adrenal gland, which was bilateral in one case and unilateral in the other. Repeat computed tomography scans during antituberculous chemotherapy demonstrated a progressive change of the adrenals toward atrophy and calcification, while the adrenal function remained impaired. The authors recall that adrenal tuberculosis may be unilateral first, then bilateral, and that the gland is initially hypertrophic before hormonal deficiency appears; later on, adrenal atrophy and calcification develop. Computed tomography seems to be useful in the aetiological diagnosis of Addison's disease. Moreover, it helps in determining whether or not antituberculous therapy is indicated, which is not always easy to decide in the absence of "active" focus. The finding, with or without positive tuberculin skin tests, of an adrenal hypertrophy unexplainable by any other pathology (e.g. metastasis, histoplasmosis) should call for antituberculous treatment, especially since it sometimes results in recovery of adrenal function.

Addison Disease↗
PubMedDate not supplied

US and CT findings of tuberculosis of the thyroid: three case reports.

With two ultrasonographic and two CT films of three cases of thyroid tuberculosis, we evaluate the ultrasonographic and CT findings and correlate them with the pathologic findings. They are demonstrated as heterogeneous hypoechoic mass on ultrasonogram and peripheral-enhancing low-density abscess on CT scan with regional lymphadenopathy. Ultrasonography (US) and CT can help the diagnosis of thyroid tuberculosis.

Adult↗
PubMed2002

Hypercalcemia in a patient with tuberculous adrenal insufficiency.

OBJECTIVES: To raise awareness of hypercalcemia as a rare and at times inaugural manifestation of adrenal insufficiency. CASE REPORT: Evaluation of hypercalcemia in a 43-year-old man showed adrenal insufficiency. Biopsies of the testes and adrenal glands revealed epithelioid and giant cell lesions indicating tuberculosis. Although tuberculosis can contribute to hypercalcemia, this possibility was ruled out in our patient by the low serum 1,25-dihydroxy-vitamin D3 levels and return to normal of serum calcium and renal function under hormone replacement therapy. It should be noted, however, that a course of pamidronate was given. CONCLUSION: The mechanism of hypercalcemia associated with adrenal insufficiency is controversial. Hyperparathyroidism was ruled out in our patient. Adrenal insufficiency should be considered in some patients with hypercalcemia.

Adrenal Insufficiency↗