An unusual neck lump: intramuscular haemangioma of the sternocleidomastoid muscle

Intramuscular Hemangioma of the Sternocleidomastoid: A Rare Tumor in an Unusual Location

Intramuscular hemangiomas (IMH) are benign vascular tumors of the skeletal muscles. These tumors are uncommon in the head and neck region and usually affect the trunk and extremities. IMH of the masseter and trapezius muscles have been reported in the head and neck region. However, the sternocleidomastoid is extremely rare. In the current case report, we described a 25-year-old man with a rare case of intramuscular hemangioma involving the sternocleidomastoid muscle and reviewed the relevant literature. Contrast-enhanced computed tomography was initially obtained and showed a slightly hyperdense soft tissue mass. Head and neck magnetic resonance imaging (MRI) demonstrate a well-delineated hyperintense lesion on the T2 sequence suggestive of a soft tissue hemangioma. Subsequently, angioembolization using onyx was performed, followed by surgical excision of the mass under general anesthesia. Histopathological examination of the mass showed vascular proliferation within the skeletal muscles, and fatty tissue with an abundance of capillaries, which are consistent with capillary type intramuscular hemangioma. The patient was followed up in the clinic until the wound healed. Three months after surgery, no recurrence was observed. Preoperative angioembolization contributed to the success of IMH surgery by reducing morbidity, facilitating complete excision, and decreasing the risk of recurrence.

Long-term effects of intracochlear electrical stimulation with looped patterns on tinnitus: A case study

Electrical stimulation by cochlear implant (CI) has been proven to be a viable treatment option for tinnitus in many recent studies. In addition, intracochlear electrical stimulation independent of an acoustic input appears to suppress tinnitus, at least in the short term. We conducted a case study to investigate the long-term effects of both standard CI and intracochlear electrical stimulation independent of an acoustic input on tinnitus in a patient with single-sided deafness and tinnitus. We found no negative effects of intracochlear electrical stimulation independent of an acoustic input on speech perception in noise. Furthermore, the additional use of a standard CI was advantageous for speech discrimination in our patient. We conclude that long-term tinnitus suppression can be achieved via intracochlear electrical stimulation with looped patterns. Our findings in terms of speech discrimination in our patient were consistent with those reported in previous studies.

Intramuscular Hemangioma in the Anterior Scalene Muscle Diagnosed by Core Needle Biopsy

Intramuscular hemangioma (IMH) is a rare, benign vascular lesion that frequently develops within skeletal muscles. Preoperatively, accurate diagnosis of IMH is often extremely difficult because of nonspecific clinical findings and the inaccuracy of fine-needle aspiration cytology. IMH is suspected in only 8% of preoperative diagnoses before surgical exploration. Here, we report a case of a 44-year-old man with a huge IMH in the anterior scalene muscle that was preoperatively diagnosed using ultrasonography-guided core needle biopsy, and was successfully treated based on preoperative clinical information.

Intramuscular hemangioma of the scalene musculature masquerading as a paraganglioma: a case series

Intramuscular hemangiomas (IMHs) are uncommon benign vascular lesions, which develop in skeletal muscle. Herein, two cases of IMHs involving the cervical scalene musculature are presented. Such lesions are exceedingly rare, and can be difficult to distinguish from vagal paragangliomas based on clinical presentation, exam, and radiography. Complete surgical excision is the treatment of choice, and was successful in our two index patients. While rare, IMHs of the scalene muscles should be considered in the differential diagnosis of deep neck space masses.

[Rare intramuscular haemangioma of the sternocleidomastoid muscle]

Intramuscular tumours of the head and neck often represent a differential diagnostic challenge. We report the rare case of an intramuscular haemangioma arising from the sternocleidomastoid muscle in the 6th decade. Pre-operative diagnosis was difficult, as these tumours are extremely uncommon in the head and neck region, with only very few cases reported in the literature. Due to the marked tendency of intramuscular hemangiomas to recur, accurate preoperative diagnosis forms the basis of adequate surgical therapy with sufficient safety margins.