| 1377 | 右手第３中節骨腫瘤 | （田中顕之先生） | | |
| Chondroma | 16 |
| Periosteal | 8 |
| Parosteal | 1 |
| Enchodroma | 1 |
| | |
| * | Bizarre parosteal osteochonromatous proliferation | 9 |
| Nora’s lesion | 2 |
| 骨皮質・髄腔とは無関係。少数ながら２核の軟骨細胞あり。
50%程度が再発する。外傷・慢性刺激が原因？ |
| Osteochondroma | 2 |
| Chondromyxoid fibroma | 1 |
| Chondrosarcoma | 1 |
| Periosteal osteosarcoma | 1 |
| |
| 1378 | 上腕骨腫瘤 | （藤澤真義先生） | | |
| Aneurysmal bone cyst | 10 |
| * solid variant | 4 |
| Xp; punched-out lesionで病巣内部・辺縁の硬化像がない。CT; 充実性。骨皮質内腔側がerosion
αSMA(++)，CD68巨細胞にのみ(+)，Desmin・CD34・CK・βcatenin(-)
solid variant; Cancer 1992; 69: 2921-, 1993; 71: 729-, 1992; 70: 2642-
同様の症例は→岡山外科病理研究会 #1124 |
| Non-ossifying fibroma/metaphyseal fibrous defect | 5 |
| non-ossifying fibroma | 3 |
| metaphyseal fibrous defect | 1 |
| Benign fibrous histiocytoma | 1 |
| Giant cell tumor | 5 |
| Fibrous dysplasia | 2 |
| with secondary aneurysmal bone cyst | 1 |
| Chondromyxoid fibroma | 1 |
| Myofibroma | 1 |
| Desmoplastic fibroma | 1 |
| Fibroma | 1 |
| Hemangiofibroma | 1 |
| Glomangiopericytoma | 1 |
| Epithelioid hemangioendothelioma | 1 |
| Angiosarcoma | 1 |
| |
| 1379 | 頭頂部皮膚腫瘍 | （黒田直人先生） | | |
| (Cutaneous) mixed tumor | 18 |
| Apocrine | 2 |
| Sweat gland and sebaceous tumor, benign | 1 |
| Malignant | 1 |
| Admexal carcinoma with mixed differentiation | 1 |
| * | Cutaneous adnexal tumor with multilineage differentiation | 1 |
| 毛・脂腺・apocrineの分化が混在。CK20(-)，小型上皮:CK5・CK7(+)，大型上皮:CK7・EMA(+)
p63:小型細胞の核に(+)。αSMA(+)細胞もごく少数あり |
| Adnexal adenoma with divergent differentiation | 1 |
| Sebaceoma / sebacous neoplasm | 6 |
| with apocrine differentiation arising in nevus sebaceous | 1 |
| with poroid features and ductal differentiation | 1 |
| Hidradenoma | 1 |
| Trichilemmoma | 1 |
| Porocarcioma | 1 |
| IDK | 1 |
| |
| 1380 | 上縦隔に発育した食道粘膜下腫瘍 | （物部泰昌先生） | | |
| Schwannoma | 16 |
| * Gastrointestinal type | 1 |
| 病変の部位は上縦隔に訂正
S100(++), c-kit(-), CD34(-), αSMA(-)，p53(-), Ki-67 4%, J Gastroenterol 2001; 36: 772-
PETで取り込みが認められたが，神経鞘腫は良性でも |
| Gastrointestinal stroma tumor (GIST) | 6 |
| Smooth muscle neoplasms | 5 |
| Leiomyoma | 3 |
| Leiomyosarcoma | 2 |
| Inflammatory myofibroblastic tumor | 2 |
| Solitary fibrous tumor | 1 |
| |
| 1381 | 左手背皮膚結節 | （河原明奈先生） | | |
| Leprosy(ハンセン病） | 22 |
| Leprosy | 7 |
| * Histoid | 1 |
| ZN(+), BCG(++), Wade-Fite染色(++), CD68(++), CD1a(+), CD207(-), CD21(±)
治療薬Dapson抵抗性であることが示唆されたので，薬を変更して治療→軽快した
組織形態学的に梅毒や第４性病は除外できるか？ |
| Erythema nodosum leprosy | 2 |
| Xanthogranuloma | 1 |
| Rosai-Dorfman disease | 1 |
| Granulomatous inflammation | 1 |
| Deep benign fibrous histiocytoma | 1 |
| Plexifrom fibrohistiocytic tumor | 1 |
| HIstiocytoma | 1 |
| Reticulhistiocytosis | 1 |
| Indeterminate dendritic cell tumor | 1 |
| IDK | 1 |
| |
| 1382 | 傍精索腫瘤 | （沖田千佳先生） | | |
| Lipoma | 12 |
| # Spindle cell | 7 |
| Fibrolipma | 1 |
| Myolipoma | 1 |
| Liposarcoma / atypical lipomatous tumor | 11 |
| well differentiated | 4 |
| well differentiated | |
| atypical lipomatous tumor | 2 |
| dedifferentiated | 1 |
| * Cellular angiofibroma | 6 |
| CD34(++), S100(-), αSMA(-)，desmin(+), RR(+), PgR(+), Androgen-recptor(+)
Mod Pathol 2011; 24: 82-89. AJSP 2012; 36: 1119- |
| Mammatry-type myofibroblastoma | |