Multiple mucinous and lipomatous variant of eccrine angiomatous hamartoma associated with spindle cell hemangioma: a novel collision tumor?

Eccrine angiomatous hamartoma: First case in the cytology literature

A 34-year-old male presented with a swelling on the volar surface of the third digit of his right hand. This swelling was associated with pain and erythema. Ultrasound-guided needle biopsy was performed. Cytologic and histologic preparations together confirmed the diagnosis of a rarely encountered mixed epithelial and mesenchymal proliferation, an eccrine angiomatous hamartoma. To our knowledge, this case is the first to illustrate the cytomorphologic features of this rare lesion.

Eccrine Angiomatous Hamartoma: A Clinicopathological Study of 26 Cases

BACKGROUND

Eccrine angiomatous hamartoma (EAH) is a rare benign cutaneous tumor characterized by the proliferation of eccrine glands and capillaries.

OBJECTIVE

The aim of this study was to summarize the clinicopathological characteristics of EAH.

METHODS

A retrospective chart review was performed on all patients diagnosed with EAH from 1977 to 2012 in the Union Hospital, Wuhan, P.R. China, and the clinicopathological features were compared with the cases reported in the literature.

RESULTS

A total of 26 patients with EAH were identified. The male:female ratio was 1.2:1. EAH most commonly presents as a solitary (80.8%) plaque (50.0%) on the lower extremities (61.5%). Most patients presented with hyperhidrosis localizing to the lesion. Although most patients did not have major pain or anatomic deformity, one patient had severe pain as well as difficulty walking and moving, necessitating leg amputation. The histopathological findings showed typical features of EAH.

CONCLUSION

EAH is a rare but characteristically benign skin hamartomatous condition. In rare occasions it can be associated with severe structural and functional impairment.

An eccrine angiomatous hamartoma with histopathological features of a papillary haemangioma in a neonate

Eccrine angiomatous hamartoma (EAH) is a benign hamartomatous tumour characterized by a combination of proliferative eccrine and vascular elements. Papillary haemangioma (PH) is a distinct cutaneous haemangioma with predominantly intravascular capillary proliferation within dilated thin-walled blood vessels. EAHs have been reported in combination with various vascular components. We present the first case in the dermatological literature, to our knowledge, of a patient with congenital EAH with the histopathological features of a PH.

[Eccrine angiomatous hamartoma: a report of 2 cases]

Eccrine angiomatous hamartoma is a rare, benign tumor characterized by a proliferation of eccrine and vascular structures. We present 2 cases and review the characteristics of this disorder. The first patient was a 33-year-old woman who consulted for a brownish lesion on her back associated with local hyperhidrosis. The second patient was a 25-year-old man with an asymptomatic erythematous lesion on his left palm. In both patients a diagnosis of eccrine angiomatous hamartoma was made based on the histological findings. Eccrine angiomatous hamartoma is usually present at birth or develops during childhood. It is typically a solitary lesion and signs and symptoms can vary; diagnosis is therefore based on histological study. The most common site is on the distal parts of limbs. The lesions tend to be asymptomatic, but there may be associated pain and hyperhidrosis. Treatment is not usually necessary except in cases with persistent symptoms, excessive sweating, or cosmetic concerns.

A case of eccrine angiomatous hamartoma associated with verrucous hemangioma

Eccrine angiomatous hamartomas are benign vascular and eccrine malformations often accompanied by hyperhidrosis or pain, increased eccrine glands, and aggregates of vessels. Verrucous hemangiomas are congenital vascular malformations presenting as unilateral grouped papules. Histologically, they show verrucous epidermal change and proliferation of capillaries in the dermis. We report a case of a 47-year-old woman with a red keratotic patch overlying a bluish plaque on the right sole, which had been present since birth. It was accompanied by pain and hyperhidrosis. Histologically, there were verrucous changes in the epidermis, numerous dilated capillaries in the papillary dermis, and increased eccrine glands with angiomatous foci in the deep dermis. The epithelial cells of the eccrine glands were positive for CEA, and the endothelial cells were positive for CD31 and GLUT-1. Eccrine angiomatous hamartomas have been reported in conjunction with other vascular tumors in only a few instances. We report an interesting case of an eccrine angiomatous hamartoma associated with a verrucous hemangioma.