Recurrent benign cutaneous granular cell tumor: A case report
A 42-year-old male presented to surgery OPD with a gradually increasing, painful, right-sided swelling in the back for two years. There was no history of any other painful nodules or local trauma. On physical examination, a firm, mobile subcutaneous swelling with well-defined margins, measuring 7 × 6 cm in size was noticed over right side of back. No discoloration or vascular distension was identified []. Past history of excision of similar swelling from the same site few years back was present; however, records of previous surgery were not available.\nA FNA of the swelling was performed using standard technique. The smears prepared from the aspirate were air dried and stained with Giemsa stain. A portion of the aspirate was submitted for cell block. Sections from the cell block were stained with hematoxylin and eosin (H and E). The FNA smears revealed moderate to high cellularity comprising of singly scattered as well as clusters of uniform polygonal cells with low N/C ratio, moderate to abundant granular, fragile cytoplasm, and eccentrically placed round to oval nuclei with few cells showing mild nuclear pleomorphism []. A small number of cells had prominent nucleoli while occasional cells showed prominent intranuclear inclusions []. Few binucleate and multinucleate cells were also noticed. No necrosis or mitoses was identified. Based on the cytomorphological features, a diagnosis of granular cell tumor was given. The cell block sections showed uniform polygonal cells with periodic acid- Schiff (PAS)-positive, diastase-resistant granular cytoplasm The cells also demonstrated positivity for S100 []. Hence, the diagnosis of granular cell tumor was confirmed.