Thumb Schwannoma : A Frequent Misdiagnosis
نویسندگان
چکیده
A 32 year-old Malay lady presented with a swelling over the dorsal surface of her right thumb for 6 months. The swelling was non-tender, smooth surfaced, mobile and nonfluctuating with no bony involvement. The provisional diagnosis was ganglion cyst. Excisional biopsy did not show features of ganglion cyst as it appeared to be wellencapsulated, multi-lobulated and yellowish in colour. Histopathological examination showed that it was a schwannoma. Schwannomas are relatively rare benign tumours which are frequently misdiagnosed. In this case, it was misdiagnosed both as a ganglion and a lipoma.
منابع مشابه
Ancient Schwannoma of the Thumb Pulp
A 21-year-old woman had become aware of a mass on the palmar aspect of the distal phalanx of her left thumb 11 years earlier. Her medical history was unremarkable, with no traumatic injury of the left thumb. Initial examination revealed a hard but elastic, immovable tumor of 30 × 25 mm on the palmar aspect of the distal phalanx of the left thumb, with an ulcer formed at the center. No pain, sen...
متن کاملMelanotic schwannoma of thoracic spinal root mimics metastatic melanoma: a potential pitfall for misdiagnosis.
Melanotic Schwannoma (MS) is a kind of rare subtypes of Schwannoma. In this tumor, amounts of melanin always mislead inexperienced pathologists to a diagnosis of primary or metastastic melanoma. Different from the ordinary Schwannoma, MS is considered as a low malignant nerve sheave tumor. Here we present a case of MS arising from the thoracic spinal and initially was misdiagnosed as metastasti...
متن کاملCystic schwannoma of the axillary region: imaging findings of a rare disease. Case report.
Schwannomas are well capsulated, benign, and slowly growing tumors which originate from Schwann cells of peripheral nerve sheath. The incidence of schwannomanas in the axillary region is not common. This rarity causes misdiagnosis at the radiological evaluation. In this case we present the imaging and histopathological findings of a cystic schwannoma located in the axillary fossa of a 47-year-o...
متن کاملMicrocystic/reticular schwannoma of the esophagus: the first case report and a diagnostic pitfall
BACKGROUND Microcystic/reticular schwannoma is a recently described, rare, distinctive histological variant of schwannoma with a predilection for the gastrointestinal tract (GIT). The authors experienced the first case of a microcystic/reticular schwannoma occurring in the esophagus. CASE PRESENTATION A 39-year-old male presented for an obstructive sensation during swallowing of several month...
متن کاملRetroperitoneal schwannoma mimicking metastatic seminoma: case report and literature review
If a testicular cancer patient has a mass in the retroperitoneum, a metastasis is often the first suspicion, probably leading to improper diagnosis and overtreatment. Here we report a case of retroperitoneal schwannoma mimicking metastatic seminoma. A 29-year-old man, who had a history of seminoma, presented with a single retroperitoneal mass suspected to be a metastasis. Because the patient re...
متن کامل