The Usefulness of the Ultrasonography in the Diagnosis of an Extradigital Glomus Tumor

Extradigital Glomus Tumor Mimics an Intrinsic Nerve Tumor in a Trauma Patient: Case Report and Literature Review

“…However, in this case and other case reports, it misdiagnosed the tumor but localized the tumor size and anatomy for curative surgical excision [9,11,12]. Color Doppler USG is another imaging modality often reported in the literature that can aid in the diagnosis and pre-operative localization of glomus tumors [12,15,17]. It can visualize the arterial patterns as hypervascularity of the mass with color Doppler, which can be used to distinguish glomus tumors from other soft tissue tumors.…”

“…The presenting symptoms and differential diagnosis considered for cases of extradigital glomus tumors arising in upper or lower extremities in association with prior trauma are seen in Table 1 [3,6,[10][11][12][13][14]. Trauma is a common etiology for the presentation of radiating pain or dysesthesia, hyperesthesia, paresthesia, or allodynia as manifestations of neurological disorders such as peripheral neuropathy, intrinsic nerve tumors (schwannoma, neurofibroma, or neuroma), radiculopathy caused by intra-or extra-spinal mass lesions, and complex regional pain syndrome (CRPS) [7,15]. They can have other accompanying sensory or motor deficits such as numbness or ataxia, which were absent in this case.…”

“…It can visualize the arterial patterns as hypervascularity of the mass with color Doppler, which can be used to distinguish glomus tumors from other soft tissue tumors. Glomus tumors present as well-circumscribed, hypervascularized, hypoechoic subcutaneous solid tumors on USG [15,17]. Additionally, USG doesn't require intravenous administration of contrast agents or radiation [15].…”

“…Glomus tumors present as well-circumscribed, hypervascularized, hypoechoic subcutaneous solid tumors on USG [15,17]. Additionally, USG doesn't require intravenous administration of contrast agents or radiation [15]. It is important to note that hypervascularity may not be reliable for detecting all glomus tumors since only two out of the three known histologic variants are highly vascular -glomangioma type with prominent vasculature, and glomangiomyoma type with prominent vasculature and smooth muscle [9,13].…”

Suprascapular glomus tumor: an unusual cause of chronic shoulder pain

“…GTs are typically located in the upper extremities, with almost 75% of them developing in the subungual region of the digits [ 4 , 5 ]. Typical presentation includes a solitary nodule associated with intermittent debilitating pain crises, localized tenderness and temperature sensitivity [ 4 ].…”