Report of two cases of fluorodeoxyglucose positron emission tomography/computed tomography appearance of hibernoma: A rare benign tumor
This was a case report of a 45-year-old lady, a case of the right breast carcinoma with ipsilateral axillary nodal and liver metastases; underwent a PET/CT scan post-six cycles of chemotherapy. The scan revealed hypermetabolic right breast mass, metastatic right supraclavicular and axillary lymphadenopathy and liver metastases [, maximum intensity projection (MIP)]. Apart from this a hypermetabolic (maxSUV 20.9), low-attenuating, well-defined mass lesion was noted in the left postero-lateral chest wall [Figure -]. This mass was relatively hyperdense to the surrounding subcutaneous fat. This mass had remained unchanged since the previous CT scan (pre-treatment), which was done 4 months ago. The imaging findings led to the diagnosis of a benign fat containing tumor – hibernoma. On a clinical follow-up, a year later after the PET/CT study this painless, soft swelling in the left postero-lateral chest wall remained unchanged confirming the benignity of this rare tumor.