Chotatsu Tsukayama

DIROFILARIAL INFECTION IN HUMAN LUNGS

Two cases of dirofilarial infection in the human being were reported. Dirofilarial infection is common in dogs but rather rare in human. A review of Japanese literature disclosed 13 cases of human dirofilarial infection. Scarcity of symptoms and its morphological similarity to tuberculosis or infarction as well as the popularity in pets suggest that the true incidence of infection may actually be higher than the above figure. Our cases alert us for the recognition of human dirofilarial infection, and careful examination of multiple sections in granulomatous or nonspecific infarcted lesions is suggested.

BREAST CARCINOMA METASTATIC TO UTERINE LEIOMYOMA

Two cases of breast carcinoma metastatic to uterine leiomyoma are presented. A review of literature disclosed fourteen cases of extrapelvic carcinoma with a metastasis to uterine leiomyoma, ten of which were of breast carcinoma. The high incidence of breast carcinoma among such tumors (75%) suggests some intimacy between these two tumors. It is speculated that the common property of their development by estrogenic stimulation may be responsible for the establishment of such an assodation.

Gastric teratoma diagnosed cytologically by aspiration cytology.

生後2ヵ月の男児の胃に発生した成熟奇形腫の1例を経験した. その吸引, 捺印細胞診像は成熟した扁平上皮, グリア細胞などの外胚葉成分と, 内胚葉成分呼吸器系の線毛円柱上皮, 消化器上皮, それに加えて中胚葉としての骨, 軟骨, 平滑筋, 脂肪細胞が混在した. 少数の未熟な神経系細胞が認められたが, 幼若な胚細胞は認められなかった. これらの点から成熟奇形腫が推測された. 組織学的にも, 成熟した三胚葉成分がみられ, 捺印細胞像を裏づけるような所見を得た. 術後6ヵ月までの観察では再発の兆候はない.

Rapid diagnosis of the nervous system tumors - Crush cytology method.

1971年から1982年までの12年間に経験した脳神経腫瘍のうち, crush細胞診を併用して診断された原発性脳腫瘍74例について検討した。Crush細胞診は, 術中迅速診断を求めて送られてくる外科標本から簡単に細胞診用の標本が作製でき, 凍結標本に比べて短時間で明瞭な細胞像が得られるため, 脳神経系腫瘍の診断に凍結切片標本と併用して用いることが有用であると伴断した.