J Pathol Transl Med.  2017 Jan;51(1):92-95. 10.4132/jptm.2016.06.21.

A Rare Case of Angioleiomyoma Arising in the Subglottic Area to Upper Trachea of a Patient with Underlying Asthma

Affiliations
  • 1Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. leekyoyo@catholic.ac.kr
  • 2Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Abstract

Angioleiomyoma is a rare disease that is histologically characterized by smooth muscle cells arranged around vascular spaces. Although angioleiomyomas occur rarely in the head and neck region, they can cause various symptoms according the site involved. Here, we present a 44-year-old male patient with a 15-year history of asthma, who presented with recent onset of chest discomfort, globus sensation and throat pain. Medication was not effective in relieving his symptoms, and further evaluation revealed a polypoid ovoid mass, almost obstructing the airway at the border of the larynx and upper trachea on chest computed tomography. The mass was completely resected via a rigid bronchoscopy procedure. Histopathologic examination revealed that the excised mass was angioleiomyoma, which was immunohistochemically positive for smooth muscle actin and negative for desmin.

Keyword

Angioleiomyoma; Larynx; Trachea; Bronchoscopy

MeSH Terms

Actins
Adult
Angiomyoma*
Asthma*
Bronchoscopy
Desmin
Head
Humans
Larynx
Male
Muscle, Smooth
Myocytes, Smooth Muscle
Neck
Pharynx
Rare Diseases
Sensation
Thorax
Trachea*
Actins
Desmin

Figure

  • Fig. 1. Neck computed tomography (CT) and bronchoscopic findings. (A, B) Neck CT reveals a 2.0×1.5-cm-sized, round exophytic lesion at the border of the subglottic area and upper trachea. (C) Bronchoscopic finding during the operation, showing an ovoid and polypoid mass located 1 cm below the vocal cord, attached to the anterior wall of the trachea by a stalk-like structure. (D) Bronchoscopic view of the same lesion after the excision; the mass is resected by snare without complications.

  • Fig. 2. Histopathologic findings of the mass. (A) Low-power view shows an ovoid and polypoid mass, consisting of well differentiated smooth muscle cells with intervening vascular channels and covered by respiratory epithelium. (B) Variable venous lumens, surrounded by muscular coats with dense to relatively loose intervascular smooth muscle cells are noted. (C) The surface is covered with ciliated pseudostratified columnar bronchial epithelium. Thin walled vessels are abundantly placed in the lamina propria, some of which have an ill-defined muscular coat. (D) Immunohistochemically, the tumor cells are positive for smooth muscle actin.


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