Zosteriform cutaneous metastases from an occult primary malignancy of lung identified by whole-body FDG PETCT imaging.
Cutaneous metastasis may be the first evidence of internal malignancy or a sign of recurrence of malignancy and is considered a grave prognostic sign. There are various morphological variants of cutaneous metastases, with the most common being solitary to multiple erythematous infiltrating papules and nodules and the rarer variants being carcinoma erysipeloides, carcinoma en cuirasse, carcinoma telangiectaticum, alopecia neoplastica, metastasis to the inframammary crease, and zosteriform pattern. FDG PETCT is an established imaging modality in the identification of an unknown primary malignancy and also has an important role in the therapeutic decision-making.
Department of Nuclear Medicine and Positron Emission Tomography/Computed Tomography, Amrita School of Medicine, Amrita Institute of Medical Sciences and Research Center (Under Amrita Vishwa Vidyapeetham University), Kochi, Kerala, India.
Padma
P
Subramanyam
Department of Nuclear Medicine and Positron Emission Tomography/Computed Tomography, Amrita School of Medicine, Amrita Institute of Medical Sciences and Research Center (Under Amrita Vishwa Vidyapeetham University), Kochi, Kerala, India.
Shanmuga Sundaram
SS
Palaniswamy
Department of Nuclear Medicine and Positron Emission Tomography/Computed Tomography, Amrita School of Medicine, Amrita Institute of Medical Sciences and Research Center (Under Amrita Vishwa Vidyapeetham University), Kochi, Kerala, India.
Anshu
A
Tewari
18Fluorine-fluorodeoxyglucose positron emission tomography/computed tomography; adenocarcinoma; zosteriform cutaneous lesions