A Small Solitary Pulmonary Nodule Discovered by 18F-fluorodeoxyglucose Positron Emission Tomography and CT: Rare Infection Instead of Rare Tumor
nullIssue 4, Pages: 249-252(2012)
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A Small Solitary Pulmonary Nodule Discovered by 18F-fluorodeoxyglucose Positron Emission Tomography and CT: Rare Infection Instead of Rare Tumor
Affiliations:
1. Department of Radiology
2. Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,Beijing,China,100730
Author bio:
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Published Online:07 January 2013,
Published:2012
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Da-ming Zhang, Hua-dan Xue, Lian Duan, et al. A Small Solitary Pulmonary Nodule Discovered by 18F-fluorodeoxyglucose Positron Emission Tomography and CT: Rare Infection Instead of Rare Tumor[J]. Null, 2012, (4): 249-252.
DOI:
Da-ming Zhang, Hua-dan Xue, Lian Duan, et al. A Small Solitary Pulmonary Nodule Discovered by 18F-fluorodeoxyglucose Positron Emission Tomography and CT: Rare Infection Instead of Rare Tumor[J]. Null, 2012, (4): 249-252.DOI:
A Small Solitary Pulmonary Nodule Discovered by 18F-fluorodeoxyglucose Positron Emission Tomography and CT: Rare Infection Instead of Rare Tumor
THE causes of Cushing′s syndrome are mainly divided into adrenocorticotropic hormone (ACTH) dependent and independent. ACTH dependent hypercortisolism represents excess ACTH se-creting by the pituitary or tumor outside the pituitary; and the latter one is also called as ectopic ACTH syndrome. Thorax is the most common location of causative lesions for ectopic ACTH syndrome
and the size of lesion is too small to be detected in some cases.1
2 Cryptococcal pneumonia usually occurs in immunocompromised patients and excess cortisol production can theoretically produce a state of immunodeficiency. Development of cryptococcal pneumonia concomitant with Cushing syndrome (CS) was rare. Here
we report a case of pulmonary nodule in a patient with CS differentiated with ectopic ACTH-producing tumor. Cryptococcal pneumonia was diagnosed following lung resection.
Abstract
THE causes of Cushing′s syndrome are mainly divided into adrenocorticotropic hormone (ACTH) dependent and independent. ACTH dependent hypercortisolism represents excess ACTH se-creting by the pituitary or tumor outside the pituitary; and the latter one is also called as ectopic ACTH syndrome. Thorax is the most common location of causative lesions for ectopic ACTH syndrome
and the size of lesion is too small to be detected in some cases.1
2 Cryptococcal pneumonia usually occurs in immunocompromised patients and excess cortisol production can theoretically produce a state of immunodeficiency. Development of cryptococcal pneumonia concomitant with Cushing syndrome (CS) was rare. Here
we report a case of pulmonary nodule in a patient with CS differentiated with ectopic ACTH-producing tumor. Cryptococcal pneumonia was diagnosed following lung resection.