CC BY-NC-ND 4.0 · Arquivos Brasileiros de Neurocirurgia: Brazilian Neurosurgery 2020; 39(01): 049-053
DOI: 10.1055/s-0038-1623517
Case Report | Relato de Caso
Thieme Revinter Publicações Ltda Rio de Janeiro, Brazil

Compressive Neuropathy of the Ulnar Nerve in the Hypothenar Region by Lipoma: Case Report

Article in several languages: English | português
1  Department of Neurosurgery, Vila da Serra Hospital, Belo Horizonte, Minas Gerais, MG, Brazil
3  Hospital Aroldo Tourinho, Montes Claros, Minas Gerais, MG, Brazil
Henrique Nunes Pereira Oliva
2  Faculdade Pitágoras de Montes Claros, Montes Claros, Minas Gerais, MG, Brazil
Bruno Lopes Nunes
3  Hospital Aroldo Tourinho, Montes Claros, Minas Gerais, MG, Brazil
› Author Affiliations
Further Information

Publication History

12 September 2017

04 December 2017

Publication Date:
28 February 2018 (online)



Lipomas are well-defined tumors of the adipose tissue that often occur in the torso or the extremities of adult patients. These tumors usually develop painlessly and insidiously, but they may compress adjacent structures. The objective of the present study is to describe the case of a 68-year-old female patient with a giant lipoma located at the hypothenar region, with manifestation of compression of the common palmar digital nerves, the ulnar nerve, and the abductor muscle of the V finger. Regarding the symptoms, the patient felt moderate pain in the hypothenar region, with no Tinel sign, and no changes in the motor function or sensibility of the digits innervated by the ulnar nerve. Lipomas may present a varied range of histological characteristics, and malignant tumors may be a differential diagnosis. An imaging exam may aid in the diagnosis, which is confirmed by a histopathological study. For the present case, as recommended in the literature, a surgical procedure was performed for the resection of the tumor, which resulted in the control of the symptoms.