Complete Metabolic Response in Adenocarcinoma Lung With Lymphangitic Carcinomatosis.

Goyal, Harish; Kishore, Sai; Ganesan, Prasanth; Halanaik, Dhanapathi · Clin Nucl Med · 2023

case_report · Level V

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Abstract

Pulmonary lymphangitic carcinomatosis refers to the tumor spread into the lymphatic system of the lungs and is considered a poor prognostic marker. We present an interesting case of adenocarcinoma of right lung evaluated with 18 F-FDG PET/CT for baseline staging, with extensive bilateral lung involvement and lymphangitic carcinomatosis pattern. Subsequently, the patient received 3 cycles of carboplatin- and pemetrexed-based chemotherapy regimen along with oral ceritinib. Complete metabolic response and significant reduction in size of the primary lung lesion was noted on response evaluation with 18 F-FDG PET/CT, which is a rare phenomenon.

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