Sir, I turned much darker!
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Tuberculosis of the thyroid gland is an extremely rare condition. Amongst 1565 cases of thyroid lesions subjected to fine needle aspiration cytology (FNAC) over a period of nine years, 18 cases (1.15 per cent) were found to have cytological features consistent with tuberculosis thyroiditis. Acid-fast bacilli were isolated in all cases. The ages of the patients ranged from 36 to 52 years with a median age of 46 years: there were 12 females and 6 males. All the patients presented with painless solitary nodules of the thyroid. Three patients had concomitant cervical lympadenopathy and four patients were known to have tuberculosis of the lungs which was being treated. Solitary nodules of the thyroid were confirmed by a thyroid scan with radioactive iodine. Fine needle aspirates from thyroid swellings showed epithelioid granulomas with necrosis in all cases. There were no false reports or complications. It is evident from this study that FNAC is an efficient way with which to detect tuberculosis of the thyroid gland.
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OBJECTIVE: Tuberculosis of the adrenal glands is a common cause of Addison's disease in developing countries. We conducted a study to determine if treatment of such patients with modern anti-tuberculous chemotherapy would lead to an improvement in plasma cortisol and aldosterone levels. DESIGN: Prospective study. PATIENTS: 5 patients with Addison's disease secondary to tuberculosis. MEASUREMENTS: Basal and ACTH stimulated plasma cortisol and aldosterone levels were measured prior to instituting anti-tuberculous chemotherapy, as well as one month after its conclusion. Four patients were again studied over the next 2-5 years. RESULTS: Peak plasma cortisol levels prior to treatment were markedly reduced (range, < 14-110 mumol/l). There was no improvement one month (< 14-143 mumol/l) or 2-5 years (< 14-69 mumol/l) after completing anti-tuberculous chemotherapy. Peak plasma aldosterone at diagnosis was < 56-210 pmol/l; it was undetectable in 4 patients. No improvement was observed one month (< 56-210 pmol/l), or 2-5 years (< 56-389 pmol/l) after stopping anti-tuberculous chemotherapy. Plasma aldosterone levels at both these time points were far lower than those in control subjects (median 736 pmol/l, 560-1512 pmol/l; p < 0.01). One patient had an increase in peak aldosterone from < 56 pmol/l to 389 pmol/l, though peak cortisol actually declined in this subject (from 110 mumol/l to 69 mumol/l). CONCLUSIONS: Treatment of tuberculous Addison's disease with anti-tuberculous chemotherapy does not lead to normalization of ACTH stimulated plasma cortisol or aldosterone levels during the 2-5 year period of study. However, prolonged follow up with regular adrenal function tests is warranted in all such patients.
A case of a pituitary mass with clinical and MRI findings consistent with adenoma is presented. Transnasal transphenoidal excision biopsy showed it to be a pituitary tuberculoma. The patient was treated with antituberculous drugs, and a follow-up MRI 18 months later showed good response. MRI features and a review of published reports of the sellar tuberculoma are briefly discussed.
Isolated tuberculous thyroid abscess is an extremely rare form of infection of the thyroid gland. We present a case of a female patient who presented with an acute abscess of thyroid gland associated with pain and fever and without cervical lymphadenopathy. We describe the pathology of the disease and the imaging findings with their differential diagnosis.
Although extrapulmonary tuberculosis has a broad spectrum of clinical manifestations, involvement of the thyroid gland in children has been reported very rarely. The authors report a case of an 11-year-old girl with a nontender nodular swelling of the thyroid, whose symptoms, tomographic and scintigraphic features, mimicked a nodule with a cystic component. Although seldom observed, tuberculosis should be considered in the differential diagnosis of nodular lesions of the thyroid in children, especially in the patient with known history of exposure to tuberculosis.
To investigate the source of urinary Met-enkephalin-like immunoreactivity (MELI), 24-h urinary excretion of MELI and catecholamines (CAs) were examined in normal subjects and patients with tuberculous Addison's disease. MELI was present in urine and 24-h urinary excretion of MELI averaged 813.8 +/- 446.9 ng/day in normal subjects (N = 33, Mean +/- SD). 24-h urinary excretion of MELI in normal subjects significantly showed positive correlation with 24-h urinary epinephrine (E) (R = 0.392, P less than 0.05) but no correlation with that of norepinephrine (NE) or dopamine (DA). In two patients with tuberculous Addison's disease, 24-h urinary excretion of MELI and that of E were significantly lower than those of normal subjects. These results indicate that the main source of urinary MELI may be adrenal medulla.
PURPOSE: To determine the diagnostic value of 3 MR sequences for the diagnosis of adrenal tumors. MATERIAL AND METHODS: Retrospective analysis of 32 adrenal tumors (10 malignant, 15 adenomas, 5 inflammatory, 2 phaeochromocytomas) examined by MRT (1.5 T) using T2 turbo spin echo, chemical shift imaging and dynamic contrast-enhanced gradient echo sequences. RESULTS: Differentiation between malignant and benign adrenal tumours by means of T2-weighted sequences, chemical shift imaging and dynamic contrast-enhanced sequences achieved a sensitivity/specificity of 90%/73%, 100%/68% and 90%86%. Accuracy was 78%, 78% and 87%. By combining the three procedures, sensitivity/specificity/accuracy was improved to 100%/91%/94%. CONCLUSION: To differentiate adrenal lesions, the following procedures are recommended: demonstration of fat by chemical shift imaging is indicative of an adenoma. In the absence of any lipid content, T2-weighted and dynamic contrast-enhanced sequences can demonstrate inflammatory lesions.
Tuberculosis (TB) is most commonly diagnosed as a pulmonary disease; however, haematogenous spread of the organism can cause disease in any organ system. We report the case of a 30-y-old woman, Human Immunodeficiency Virus (HIV) antibody-negative, who was diagnosed as having a pancreatic mass on computed tomographic (CT) scans. She underwent a laparotomy and the fluid drained from the mass was culture-positive for Mycobacterium tuberculosis. We review the clinical details of 37 similar cases of pancreatic TB in the literature, where each patient's HIV antibody status is negative or unknown. In this series 3 patients died (1 of these had commenced anti-TB therapy, the others had not) but the remaining 34 responded well to radiological-guided drainage and/or surgical intervention and anti-TB therapy. TB should be considered in the differential diagnosis of a pancreatic mass, especially when associated with epigastric pain or discomfort and weight loss.
A 13-year-old Saudi boy was referred to the paediatric endocrinology clinic for evaluation of rapidly progressive goitre with weight loss of 6 months duration. A clinical diagnosis of possible thyroid malignancy was made. On exploration the mass was found to be tuberculous in origin, attached to the thyroid gland, and responded to partial excision and anti-tuberculous chemotherapy. Tuberculosis should be considered in the differential diagnosis of anterior midline neck masses.
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We report on three cases with rapidly increasing thyroid masses who were referred with the provisional diagnosis of thyroid carcinoma. In the two cases, the diagnosis of tuberculosis was established after thyroidectomy, but in the third case diagnosis was made pre-operatively with acid fast bacilli (AFB) staining and culture from fine needle aspiration (FNA) material. Although rare, tuberculosis of the thyroid gland should be included in the differential diagnosis of thyroid masses. FNA, AFB staining and culture of the aspirate are important diagnostic tools in these cases.
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Clinical and laboratory characteristics of 224 patients with thyroidal infection reported since 1900 are reviewed. Much of the prior literature on this subject has assumed that most instances of thyroiditis are infectious and that all lymphomatous thyroiditis is tuberculous. Similarly, thyroiditis occurring with syphilis was often equated with treponemal invasion of the gland. Acute bacterial thyroiditis is rapid in onset and more likely than tuberculous infection to produce fever, pain, and tenderness. Suppurative and mycobacterial infections are most common among women with preexisting thyroid disorders. Mortality due to infectious thyroiditis is lower in cases covered by this review than has been previously reported. Gummatous and fungal infections of the thyroid are generally diagnosed only at biopsy or necropsy. Frequent thyroidal involvement in disseminated aspergillosis warrants careful investigation of the gland in patients with this infection. Echinococcosis of the thyroid is a chronic process that is generally diagnosed only following excision.