Cellular angiofibroma in the hypopharynx: A case report

Cellular angiofibroma of the female pelvic cavity: a case report

BACKGROUND

Cellular angiofibroma is a rare benign mesenchymal tumor that mostly occurs in the genital area. Its occurrence outside this region, particularly in the pelvis, is extremely rare. To our knowledge, this study reports the first case of cellular angiofibroma occurring in the pelvic cavity, except for one case reported in the retroperitoneum.

CASE PRESENTATION

A 25-year-old female patient with chronic, intermittent, dull pain in the lower abdomen that lasted for several months was referred to our clinic. Imaging studies revealed a tumor in the pelvic cavity anterior to the bladder. The radiographic characteristics of this tumor indicated a hypervascular nature, suggesting the possibility of a pheochromocytoma or a neuroendocrine tumor. The patient underwent surgical excision of the lesion. To date, no recurrence has been observed four months after excision.

CONCLUSIONS

Cellular angiofibroma, although rare in the pelvic cavity, should be considered in the differential diagnosis of hypervascular pelvic space-occupying lesions. Immunohistochemical staining can help confirm the diagnosis of this condition. Treatment is generally straightforward, involving local excision of the tumor followed by postoperative monitoring.

Cellular angiofibroma of orbit- a rare tumor at the rarest location

Cellular angiofibroma (CAF) is a rare, site-specific benign tumor of mesenchymal origin, which is exclusive of the genital region except very few reported cases of extragenital CAF. Very recently the first case report of orbital CAF has been published and we are presenting the second documented case of CAF in this unusual location, in a 37-year-old man. Magnetic resonance imaging with T2 weighted image revealed a hyper-intense globular mass in the superomedial extraconal region of the left orbit. Histopathology of the excised mass showed numerous bland spindle cells embedded in wispy collagen, suggesting spindle cell tumor. On immunohistochemistry, the specimen was strongly positive to CD34 but negative to desmin, SMA, S-100, C-kit, ERG, EMG, CD31, and CD63, that further confirmed the diagnosis of CAF. CAF is a rare mesenchymal tumor and to the best of the authors' knowledge, this would be the second documented case of orbital CAF.

Cellular angiofibroma of the orbit

Cellular angiofibroma is a benign mesenchymal tumor most commonly located in the distal genital tract of both men and women. Although extragenital locations have been reported rarely, this is the first report of cellular angiofibroma of the orbit. A 58-year-old man presented with a mass in the left superomedial orbit since 2 years. Magnetic resonance imaging showed a well-demarcated lesion with a homogeneous intermediate signal intensity on both T1- and T2-weighted images, homogeneous contrast enhancement and high signal intensity on diffusion-weighted images. Complete excision was performed through a medial upper eyelid crease incision. Histopathology showed a vascular CD34-positive and STAT6-negative spindle cell tumor with monoallelic loss of FOXO1, indicating cellular angiofibroma.