title: [Clinicopathological study of the testicular microlithiasis].
abstract: OBJECTIVE
  Testicular microlithiasis (TM) is a relatively rare condition characterized by calcific concref1p4 within the seminiferous tubules. Little has been reported on the incidence or the clinical implication of TM among Japanese. To address the problem, we evaluated pathologic specimens from biopsies and orchiectomies, of testes with various conditions.
  
  
  METHODS
  Pathologic specimens of the testes of 200 cases, 56 from orchiectomy and 144 from testicular biopsy, were investigated.
  
  
  RESULTS
  The pathological diagnosis of TM was confirmed in seven (3.5%) cases, four of which were associated with germ cell tumors and the other three were obtained from testicular biopsies performed for examination of infertile men. Of the 41 patients with germ cell tumors, four (9.8%) were found to have TM, and another three (2.5%) were identified among 122 patients with infertility. The prevalence of TM is significantly higher in specimen with germ cell tumors than those without germ cell tumors (p < 0.05).
  
  
  CONCLUSIONS
  Although TM is rarely encountered, this condition is relatively often accompanied by testicular malignancy. Further investigation would be fundamental to ascertain the relationship between TM and testicular malignancy.
authors: Department of Urology, School of Medicine, kanazawa University.
authors: Y
authors: Y
authors: Maeda
authors: K
authors: K
authors: Komatsu
authors: Y
authors: Y
authors: Iwasa
authors: J
authors: J
authors: Kanaya
authors: E
authors: E
authors: Koh
authors: M
authors: M
authors: Namiki
authors: S
authors: S
authors: Miwa
authors: H
authors: H
authors: Fuse
authors: S
authors: S
authors: Hirano
authors: N
authors: N
authors: Kondoh
authors: M
authors: M
authors: Koga
authors: M
authors: M
authors: Takeyama
authors: K
authors: K
authors: Matsumiya
mesh_terms: D000328:Adult; D018237:Germinoma / Q000150:complications / Q000473:pathology; D006801:Humans; D007248:Infertility, Male / Q000150:complications / Q000473:pathology; D020347:Lithiasis / Q000473:pathology*; D008297:Male; D013733:Testicular Diseases / Q000473:pathology*; D013736:Testicular Neoplasms / Q000150:complications / Q000473:pathology