Atypical Carcinoid With Pulmonary Metastasis in an Adolescent

Advanced-stage atypical carcinoid tumors are seldom seen in the teenaged population. Comprehensive care, extending beyond mere cancer treatment, is essential. A 16-year-old boy received a diagnosis of a 13-mm nodule in the left S⁵ lung segment with signs suggesting interlobar pleural indentation. A surgical biopsy revealed a neuroendocrine tumor, which led to lingular segmentectomy and lymph node dissection. The pathologic diagnosis was atypical carcinoid with intrapulmonary metastasis, classified as pT3 N0 M0 stage IIB. In addition to oncologic management for the advanced-stage atypical carcinoid, genetic counseling and meticulous mental support were provided. The accumulation of clinical data on teenaged patients with lung cancer is urgently needed.