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.

Nasal lobular capillary hemangioma: Report of a case managed by endoscopic excision and pre-operative angio-embolization.

INTRODUCTION: Lobular capillary hemangiomas are fast-growing benign vascular lesions with distinctive histopathological characteristics. The head and neck region is a common location for lobular capillary hemangiomas. However, the presence of such lesions in the nasal cavity is rare. Although several contributing factors have been identified in literature, the exact pathophysiology is not yet well understood. Predisposing factors include nasal trauma, pregnancy, and the use of contraceptive pills. Thus, the disease is more prevalent in females, with variable peak incidence in pediatric patients. Unilateral nasal obstruction and recurrent epistaxis are the most common symptoms of nasal lobular capillary hemangiomas. Radiological evaluation using contrast-enhanced computed tomography and magnetic resonance imaging is often required for large lesions. CASE PRESENTATION: We present a 30-year old female who presented to ENT clinics with two month complaint of left-sided nasal obstruction and epistaxis with left facial pain and headache. She had no predisposing risk factors. Imaging with CT and MRI revealed a large hypervascular mass in left nasal cavity. Surgical excision preceded by pre-operative embolization was done. DISCUSSION: Endoscopic endonasal excision is the standard of treatment. While some authors believe that pre-operative embolization is not required, others advocate its use. Based on literature, recurrence rate is variable. CONCLUSION: We believe that use of pre-operative embolization for large nasal lobular capillary hemangioma would have an impact on perioperative morbidity.

Castleman disease: Report of a case and review of literature on role of preoperative embolization.

INTRODUCTION: Castleman disease, which was first described by Dr. Castleman in 1954, is relatively rare and represents a spectrum of heterogeneous lymphoproliferative disorders with characteristic histological features on biopsy. It is classified based on body location and histology with variable clinical presentations. Its treatment depends on the subtype, and preoperative embolization for Castleman disease has rarely been discussed in the literature. PRESENTATION OF CASE: A 22-year old man presented to the ENT clinic with a four-week history of a mass on the left side of the neck, which was associated initially with headache, fever, and fatigue for 2 days. Contrast tomography and magnetic resonance imaging revealed a hypervascular mass located at levels two and three of the left side of the neck with feeding vessels from the external carotid artery. Preoperative embolization was planned; however, the neurointerventionist considered it a lymph node that did not need embolization. Surgical excision was performed with relatively increased operative time and bleeding. A biopsy confirmed a hyaline-vascular type Castleman disease. DISCUSSION: We reviewed the evidence-based management of CD. We reviewed the available literature on the role of preoperative embolization in management. CONCLUSION: Based on published articles and the hypervascular nature of the disease, we believe that preoperative embolization helps decrease morbidity.