PT  - JOURNAL ARTICLE
AU  - Tung, Kelly
AU  - Rosenthal, Allison C.
AU  - Craig, Fiona E.
AU  - Ashman, Jonathan B.
AU  - Yang, Ming
TI  - Pitfall of <sup>18</sup>F-FDG PET/CT in Characterization of Relapsed Multisystem Lymphomatoid Granulomatosis
AID  - 10.2967/jnmt.118.212274
DP  - 2018 Dec 01
TA  - Journal of Nuclear Medicine Technology
PG  - 396--397
VI  - 46
IP  - 4
4099  - http://tech.snmjournals.org/content/46/4/396.short
4100  - http://tech.snmjournals.org/content/46/4/396.full
SO  - J. Nucl. Med. Technol.2018 Dec 01; 46
AB  - We present serial 18F-FDG PET/CT findings in a case of grade 3 pulmonary lymphomatoid granulomatosis positive for the Epstein–Barr virus. The patient experienced a transient complete response to R-CHOP chemotherapy and subsequent multisystem recurrence, predominately involving the subcutaneous region of the torso on 18F-FDG PET/CT. Biopsy of the most hypermetabolic subcutaneous lesion demonstrated grade 1 cutaneous lymphomatoid granulomatosis negative for the Epstein–Barr virus. This report highlights the role of 18F-FDG PET/CT in characterizing and monitoring disease progression and regression, as well as the limitations of 18F-FDG PET/CT in accurate grading of multisystem recurrence, given the diversity of clinical and histopathologic features of lymphomatoid granulomatosis.