title: Acute toxoplasmosis mimicking melanoma metastases: review of conditions causing false-positive results on (18)F-FDG PET/CT.
abstract: Invasive malignant melanoma is the most common fatal form of skin cancer. Fluorine-18-fluorodeoxyglucose positron emission tomography-computed tomography demonstrates a very high sensitivity and specificity for the detection of melanoma metastases. Here, we report an unusual case of toxoplasma lymphadenitis in a male adult patient mimicking a malignant cervical lymphadenopathy. Toxoplasmosis is a zoonosis caused by the intracellular parasite Toxoplasma gondii, which is usually asymptomatic in immunocompetent hosts.
authors: Department of Dermatology, University Hospital Basel, Basel, Switzerland. ivanovak@uhbs.ch
authors: K
authors: K
authors: Ivanova
authors: K
authors: K
authors: Glatz
authors: A
authors: A
authors: Zippelius
authors: G
authors: G
authors: Nicolas
authors: P
authors: P
authors: Itin
mesh_terms: D000913:Antibodies, Protozoan / Q000097:blood; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood; D007075:Immunoglobulin M / Q000097:blood; D008199:Lymphadenitis / Q000097:blood / Q000000981:diagnostic imaging*; D008297:Male; D008545:Melanoma / Q000097:blood / Q000000981:diagnostic imaging*; D008875:Middle Aged; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography / Q000379:methods*; D011237:Predictive Value of Tests; D012878:Skin Neoplasms / Q000097:blood / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014123:Toxoplasmosis / Q000097:blood / Q000000981:diagnostic imaging*
chemical_list: D000913:Antibodies, Protozoan; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D019788:Fluorodeoxyglucose F18