Papillary thyroid carcinoma (PTC) is the most common thyroid carcinoma and is derived from thyroid follicular cells. In contrast, medullary thyroid carcinoma (MTC) is rare and originates from the parafollicular C-cells. Synchronous occurrence of these two carcinomas is uncommon and occurs as either discrete lesions or as a mixed lesion. The current case report describes a 50-year-old woman with synchronous multiple discrete MTC and PTC with lymph nodes metastasis. Pathologists and treating physicians should be aware of the synchronous coexistence of these entities to avoid possible misdiagnosis.

Fluorodeoxyglucose (FDG) hepatic superscan refers to the diffuse intense uptake of 18F-FDG in the liver on positron emission tomography (PET), with reduced physiological activity in the brain and heart. The common causes include lymphoma and metastasis. In this case report, we describe the imaging features of tuberculosis as a rare cause of FDG hepatic superscan. PET imaging may be the only clue to a diagnosis of hepatic tuberculosis, as other imaging modalities may demonstrate only nonspecific hepatomegaly. It is important to consider this entity in the differential diagnosis of patients presenting with FDG hepatic superscan and proceed with liver biopsy for a definitive diagnosis.
Adult ; Aged ; Biopsy ; methods ; Bone Neoplasms ; diagnosis ; pathology ; Equipment Design ; Female ; Femur ; pathology ; Fracture Fixation, Intramedullary ; Fractures, Bone ; diagnosis ; Humans ; Humerus ; pathology ; Laparoscopy ; instrumentation ; Middle Aged ; Surgical Equipment ; Tibia ; pathology

Cough ; etiology ; Female ; Hemangioendothelioma, Epithelioid ; complications ; diagnosis ; Humans ; Lung Neoplasms ; complications ; diagnosis ; Middle Aged ; Multiple Pulmonary Nodules ; etiology