ABSTRACT
The non-Langerhans histiocytoses (NLH) are a group of very rare disorders characterized by a predominantly cutaneous proliferation of non-Langerhans histiocytes. Involvement of the respiratory system is rare and more frequently affects the airways than the lung parenchyma. We describe a 44-year-old man with the progressive nodular form of NLH, with known cutaneous and hepatic involvement. High-resolution computed tomography performed for the investigation of his breathlessness revealed an interstitial pattern of disease closely resembling sarcoidosis. Lung biopsy showed non-Langerhans histiocytic infiltration of the lung parenchyma. Radiologists should be aware of NLH as a mimic of pulmonary sarcoidosis.
Subject(s)
Histiocytosis, Non-Langerhans-Cell/diagnostic imaging , Sarcoidosis , Tomography, X-Ray Computed/methods , Adult , Diagnosis, Differential , Humans , Lung/diagnostic imaging , MaleABSTRACT
Improvements in imaging technology allow exploitation of the dual blood supply of the liver to aid in the identification and characterisation of both malignant and benign liver lesions. Imaging techniques available include contrast enhanced ultrasound, computed tomography and magnetic resonance imaging. This review discusses the application of several imaging techniques in the diagnosis and staging of both hepatocellular carcinoma and cholangiocarcinoma and outlines certain characteristics of benign liver lesions. The advantages of each imaging technique are highlighted, while underscoring the potential pitfalls and limitations of each imaging modality.
Subject(s)
Cholangiocarcinoma/pathology , Liver Neoplasms/pathology , Cholangiocarcinoma/diagnostic imaging , Contrast Media , Hepatocytes/diagnostic imaging , Hepatocytes/pathology , Humans , Liver Neoplasms/diagnostic imaging , Liver Neoplasms/secondary , Magnetic Resonance Imaging , Neoplasm Metastasis/diagnostic imaging , Neoplasm Metastasis/pathology , Tomography, X-Ray Computed/methods , Ultrasonography/adverse effects , Ultrasonography/methodsSubject(s)
Abdomen, Acute/diagnostic imaging , Abdomen, Acute/etiology , Aortic Aneurysm, Abdominal/diagnostic imaging , Appendicitis/diagnostic imaging , Ascites/diagnostic imaging , Biliary Tract Diseases/diagnostic imaging , Gastrointestinal Diseases/diagnostic imaging , Humans , Kidney Diseases/diagnostic imaging , Pancreatitis/diagnostic imaging , UltrasonographySubject(s)
Genital Diseases, Female/diagnostic imaging , Genitalia, Female/diagnostic imaging , Female , Genital Diseases, Female/etiology , Genital Diseases, Female/pathology , Genitalia, Female/anatomy & histology , Genitalia, Female/pathology , Humans , Pregnancy , Pregnancy, Ectopic/diagnostic imaging , UltrasonographyABSTRACT
Metastases from bladder cancer to the bones of the hands or feet are rare and usually present after the diagnosis of the primary lesion has been made. This case report describes a 76-year-old man presenting with initial signs of infection of the right foot. Subsequent bone scan revealed multiple bony metastases and hydronephrosis raising the possibility of a primary bladder tumour that was later confirmed by urine cytology and fine needle aspiration of the foot.
