Cutaneous Schwannoma Masquerading as Trichilemmal Cyst Over Scalp in a Young Male
A 28-year-old male presented with asymptomatic cystic growth over vertex area of scalp of 6 years duration. The lesion started as small pea- sized cystic growth and gradually increased to the present size. There was no history of trauma, previous surgery, and similar growth over scalp. The growth was painless and there was no history of any surface changes over the cystic growth. Family history of similar complaints was negative. Examination revealed a 3 × 4 cm sized, mobile, soft to firm cystic growth over right vertex region with normal hairs over the surface []. Palpation revealed no tenderness and the cyst was not attached to the underlying fascia or bone. The growth was excised under local anesthesia. During excision, when skin was incised, a bilobed tumor with capsule was found and the tumor was sent for histopathology examination []. Histopathology showed, capsulated tumor with mixed Antoni A and Antoni B patterns in dermis. The Antoni A component is cellular, and Verocay bodies are a prominent feature. The loosely cellular, pale zones are Antoni B patterns [Figures and ].