TY - JOUR
T1 - Metastatic malignant proliferating trichilemmal tumor detected by positron emission tomography
AU - Jung, Jeanne
AU - Cho, Sung Bin
AU - Yun, Mijin
AU - Lee, Kwang Hoon
AU - Chung, Kee Yang
PY - 2003/8/1
Y1 - 2003/8/1
N2 - BACKGROUND. Whole-body 18F-fluorodeoxyglucose-positron emission tomography (18F-FDG-PET) was introduced in 1990s, and its efficacy for cerebral mapping and for selective detection of various malignancies is now being recognized. OBJECTIVE. To report on the usefulness of whole-body 18F-FDG-PET for detecting a metastatic lesion in a rare case of malignant proliferating trichilemmal tumor. METHODS. A malignant proliferating trichilemmal tumor on the occipital scalp of a 69-year-old female recurred on the margin of the surgical scar after an initial wide excision, and it was removed by Mohs micrographic surgery. 18F-FDG-PET was done to detect any remaining tumor tissue, and it showed a hot uptake on the lower left occipital area, where a pea-sized nodule formed 2 months later. Dissection and wide excision of the nodule showed metastatic malignant proliferating trichilemmal tumor cells in the lymph nodes. RESULTS. We were able to take advantage of the high resolution of the 18F-FDG-PET in detecting a metastatic lesion despite its proximity to the central nervous system. CONCLUSION. The 18F-FDG-PET can be used in future malignant proliferating trichilemmal tumor cases to study the metastatic characteristics of this rare tumor.
AB - BACKGROUND. Whole-body 18F-fluorodeoxyglucose-positron emission tomography (18F-FDG-PET) was introduced in 1990s, and its efficacy for cerebral mapping and for selective detection of various malignancies is now being recognized. OBJECTIVE. To report on the usefulness of whole-body 18F-FDG-PET for detecting a metastatic lesion in a rare case of malignant proliferating trichilemmal tumor. METHODS. A malignant proliferating trichilemmal tumor on the occipital scalp of a 69-year-old female recurred on the margin of the surgical scar after an initial wide excision, and it was removed by Mohs micrographic surgery. 18F-FDG-PET was done to detect any remaining tumor tissue, and it showed a hot uptake on the lower left occipital area, where a pea-sized nodule formed 2 months later. Dissection and wide excision of the nodule showed metastatic malignant proliferating trichilemmal tumor cells in the lymph nodes. RESULTS. We were able to take advantage of the high resolution of the 18F-FDG-PET in detecting a metastatic lesion despite its proximity to the central nervous system. CONCLUSION. The 18F-FDG-PET can be used in future malignant proliferating trichilemmal tumor cases to study the metastatic characteristics of this rare tumor.
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U2 - 10.1046/j.1524-4725.2003.29237.x
DO - 10.1046/j.1524-4725.2003.29237.x
M3 - Article
C2 - 12859393
AN - SCOPUS:0043166780
SN - 1076-0512
VL - 29
SP - 872
EP - 874
JO - Dermatologic Surgery
JF - Dermatologic Surgery
IS - 8
ER -