[An aggressive inguinal (parafunicular) angiomyxoma in a male patient].
OBJECTIVE
To report a case of aggressive inguinal angiomyxoma in a male patient.


METHODS
An 82-year-old male patient presented with a well-defined, 6 cm. parafunicular mass in the right groin. The mass was located adjacent to the spermatic cord and had been noted 8 years earlier. Patient evaluation included CT, ultrasound and immunohistochemical studies.


RESULTS
The CT and US findings suggested lymph node enlargement. Microscopic analysis showed a myxoid tumor with partially infiltrating margins, vascular channels of small-sized vessels with thick walls occasionally with hyalinization and spindle-shaped or stellate mesenchymal cells with ill-defined margins without atypia or mitosis that were positive for vimentin and negative for actin, desmin, keratins, CD34 and protein S-100. No tumor recurrence or metastasis has been observed at 26-months' follow-up.


CONCLUSIONS
To our knowledge, this is one of the few cases of inguinal angiomyxoma in male patients; 16 have been reported to date. This neoplasm appears to originate from pelvic soft tissue fibroblasts.
Madrigal
B
B
Servicio de Anatomía Patológica, Hospital Central de Asturias (Hospital Covadonga), Oviedo, España.
Veiga
M
M
Vara
A
A
Pérez del Río
M J
MJ
González Carril
F
F
Fresno
M F
MF
Herrero
A
A
D000368:Aged; D000369:Aged, 80 and over; D005834:Genital Neoplasms, Male / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006119:Groin; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D009232:Myxoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D009361:Neoplasm Invasiveness; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D013085:Spermatic Cord / Q000473:pathology / Q000601:surgery