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A Rare Case of Neuroendocrine Tumor Presenting as Isolated Scalp Swelling With Paroxysmal Symptoms
Vivek Kumar Dubey1, Kush Pathak2, Kavita Sijwali1
1General Surgery, Ganesh Shankar Vidyarthi Memorial Medical College, Kanpur, IND.
Abstract:
We report a 36-year-old male with a nine-year history of recurrent left frontal scalp swelling following minor trauma, associated with local warmth, sweating, and a syncopal episode during fine-needle aspiration cytology (FNAC). Histopathology confirmed grade 2 neuroendocrine tumor (NET) with a Ki-67 index of 8-10%. 68Ga-DOTANOC positron emission tomography and computed tomography (PET-CT) showed no evidence of residual, recurrent, or primary somatostatin receptor-expressing disease, confirming this as a rare case of isolated scalp NET without an identifiable primary source. This is, to our knowledge, the first reported case of its kind. The patient's syncope post-FNAC highlights the risk of carcinoid-like crisis from lesion manipulation. This case underscores the importance of a high index of suspicion, thorough immunohistochemical workup, and consideration of peri-procedural octreotide prophylaxis.
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