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An Autopsy Case of a Hypophyseal TumorM.MoRITA, M. D., H. KAzAMA, M. SAKATA, Ph. D.,

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Sapporo Med. J.46(1)67〜72(1977)

An Autopsy Case of a Hypophyseal Tumor

M.MoRITA, M. D., H. KAzAMA, M. SAKATA, Ph. D.,

      S.MuRAoKA and A. MIKI

     Dゆ .(ゾL69α♂Mθ耽fπθ,3砂ρ02 O Mθ4f配CoZ♂θ9θ        (C配げ:P1−qズ5.y々30而那の

Introductio皿

    The hypophyseal tumor is one of the most important of tu皿ors which arise in the brain, and in general, about 10%of intracranial tumors are of this type. Such a tumor shows Iniscellaneous clinical manifestatiolls. Among these are remarkable hor−

monal symptoms and optic chiasmal syndromes which physicians, ophthalmologists and surgeons(especially neurosurgeons)have been very much interested in. It is rare to encounter a hypophyseal tumor in a forensic autopsy. Even if found, the ophalmolo.

gical symptoms which enable one to ascribe the direction of tumor extention and the syndromes suspected to be derived from a hormonal imbalance due to the abnormal growth of t.umor cells can hardly l〕e investigated.

    But it is only occasionally that we cannot adequately pursue a past history which is interesting for examining the symptoms which existed.

    The present paper reports a man who died after a quarrel and in whom subdural hemorrhages were found by forensic autopsy, and by which a tumor in the sella turcica was thereby revealed after removal of the brain.

   The tumor was diagnosed as a pituitary adenoma, and as of the chromophobe type histologi.cally

Case:

   The subject was a man 32 years old, without de丑nite occupation. This accounts for the fact that information concerning ophthalmological and/or hormonal syndromes which were suspected to have existed were not ol〕tainable. It is clear that he was in aserious state caused by alcoholic insobriety for which it was necessary to send h{m to a psychiatrical hospital for both medical examination and treatment twice during a ten month period. Neverthless, he did not recover with medical treatment and alcoholic insobriety was so frequent that he lost consciousness every time. In May,1975, he lost consciousness after falling down and after a heavy blow on the head during a quarrel in a pub. He died after eight hours treatment in a hospital to which he had been taken immediately after the injury.

External Exami皿atio皿:

   The subject was that of a we11−developed and we11−nourished Japanese male,79.8 kg in weight and 179.O cm in stature,乱nd appeared to be approximately 32 years old as stated. Cadaveric phenomana such as color of sk三n, hypostasis and muscular rigidity and so on were all within normal limits, and were regarded as being an appropriate 号tate in correlation with the estimation of the postmortem lapse of time.

   Fifteen bruises and/or excoriations were found on the whole body. Nine bruises 67

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68       MoRITA 8 αZ. An Autop.sy Case of Hypophyseal Tumor Sapporo Med. J,

regarded as the fatal wounds were found on the head and face. More det畠iled descrip−

tions are as follows:

1)Subperiostea】bleeding,3.O cm in diameter, on the leftside of the skullcap and the left temporal bone.2)Trauma existed on the skin of the left half of the forehead under which bleeding was fQund between the midline of the forehead and the anterior margin of the left temporal muscle.3)Heavy bleeding under the skin of the left ZygOmat1C reg10n.

Intern.al Examination:

    Asubdural hematoma which consisted of a jelly−1ik.e blood clot, about 150 m4, was

Fig.1 Subdural hematoma of the brain. Leftside view.

Rg。2 Pituitary tumor. The arrow nerves. Cranial view.

indicates the optic

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46(1) MORITA 8渉αZ. An Autopsy Case of Hypophyseal Tumor 69 revealed oll the frontal and temporal portions of the left hemisphere(Fig.1).

   After removal of this soft blood clot of this left subdural hematoma and of the cerebruln, a ball−1ike tumor about 3.O cm in di盆meter was found in the pituitary fossa

(Fig.2). By cautious handling, the tumor was re皿oved without arte.fact. This tumor measured 2.4 cm,2.1 cm and 2.7 cm in frontal, sagittal and vertical diameters, respec−

tive】.y. The round ba11−1ike tumor was ascertained in the enlarged pituitary fossa.

The tumor was semi−transparent and soft, and had elasticity. The hypophyseal stalk was located on the upper surface, but to the left far from the midlihe of the tumor which protruded cranially. The foramen diaphragmatis sellae was enlarged and was

Fig.3 Pituitary tumor. Backside view.(Dorsal view)

.鋭

p戯冨

2・、、,◎.箆.,..

ィ..

Fig.4 Cut surface of the pituitary tumor. Rightside view.

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70 MoRITA 8診αZ.一An Autopsy Case of Hypophyseal Tumor Sapporo Med. J.

circumscribed around horizontally at the middle height of the tumor. For this reason,

the tumor seemed to be constricted(Fig.3). The sagittal cut surface on the median line was pale gray colored, soft and jelly−like in appearance and local destruction of tissue with hemorrhages was observed(Fig.4). Among the other organs, the liver was the only organ that was ascertained in a pathological condition, and was diagnosed as a fatty liver which was ascribed to alcoholic insobriety.

Histological Findings:

  The tumor cells had nuclei which were round or oval shaped and uniform in size,

  Fig.5 Microscopic photograph of the pituitary tumor.150×.

       Fig。6 Higher magni丘cation of Fig.5。600×。

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46(1) MORITA 8彦α♂. An Autopsy Case of Hypophyse.al Tumor 71 and an amount of chromatin(Fig.5). The cy.toPlasm of the tu皿or cells were slightly abundant and light. No granules were seen in the cytoplasm(Fig.6). F士om the五nd−

ings皿entioned, the tumor was diagnosed as chromophobe adenoma, dif[use type.

Discussio皿

    pituitary tumors are classi丘ed clinico.statistically as follows;pituitary adenoma,

craniopharyngioma, meningioma(of the tuberculum sellae)and gliom(of the optic chiasm)1). A pituitary adenoma is con.sidered to arise from the cells in the adenohy.

pophysis. The incidence of this type of tumor among brain tumors as a whole is considered to 1)e 17.8%by Cushing2),8%by Zulch3)and 11%by Kuwahara1).

    Histologically, a pituitary adenoma is most frequently of the chromophobe type,

and then eosinophils and basophils of加mor cells and/or of a mixture of the two or three types mentioned above.

    It wa.s concluded, presumably, tha.t the tumor was in the hypophyseal groove and extended upward a且d externally on both sides. Due to this extention of the tumor, a visual defect was suspected to have existed, but historical evidence obtained was not conclusive enough to presume this. Even if there had been some evidence, it is doubtful that this could have been objectively decided upon because of the patient s serious state ascribed to alcoholic insobriety. Moreover, in a case in which a pituitary tumor extends and presses the optic chiasma until it is thinned to a paper−1ike thickness, a visual defect圭s not notic.eable in ophth且lmological examinations5).

    From the conditions described, a visual defect and/or visual disturbance was not presumed to have existed in the presented ca.se.

    We think that this case should not be overlooked because 1)one does not often encounter a pituitary tumor in a forensic autopsy, and 1〕ecause 2)the relationship be−

tween the cause oτreason for the quarrels and/or behavior thereby and the cause.of death, although it might be secondary, can be suspected to 1)e due to the existence of the. tumor.

Summary

    Acase report of a hypophyseal tumor which was found in a forensic autopsy is presented here.

    It should not be overlooked because one does not often encounter a pituitary tumor in forensic autopsy, and because the relationship between the cause or reason for the quarrels and/or behavior thereby and the cause of death,. although it皿ight be secondary, can be suspected to be due to the existence of the tumor.

      (Received May 6,1976)

R.efere血ces

1)Kuwahara, T.=Tumors in the pituitary   Region. Brain and Nerve。18(6),27−35

  (1966).

2)Cushing, H.:Intracranial Tumors;Ch. C.

  Thomas, Spring丘eld(1932).

3)Z廿lch, K. J.:Allgemeine statistisc.he und   biologische Daten廿ber die Hirngeschw廿1−

  ste. In Handbuch d. Neurochir. 45−6.9,

  Springer Verlag, Berlin, G6ttingen, Hei−

  derberg(1956).

(6)

72 MORITA 86α♂. An AutQpsy Case of Hypophyseal Tumor Sapporo Med, J.

4)Nakata,. M.: N6 Shuy6 , Nanzando, To−

  kyo(1949)(ln Japanese).

5)Hollenhorst, R W. and Younge, B. R.:

  Ocular mani.festations produced by ade−

  nomas of the pituitary gland:analysis of   1,000cases. in Diagnosis and Treatment    of Pituitary Tumors.53−68, ed. by Kohler,

  P.0.and Ross, G. T., Excerpta Medica   Amsterdam A.merican Elsevier Publishing   Co., Inc. New York(1973).

6)Kernohan, J. M and Sayre, G. P.:Tu−

   mors◎f the Pituitary Gland and Infun−

   dibulum, in Atlas of Tumor Pathology

   Section X−Fascicle 36. A. E I. P.(1956).

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