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The specimens presented in the accompanying com- pact disc were collected and sectioned at the Royal Children’s Hospital, Melbourne, Australia and the Children’s Memorial Hospital, Chicago, USA. The colored sections were enlarged directly from the stained histologic sections, which were selected from serial sections of the pelvis of newborn babies who had died of multiple anomalies. The sections show the normal and abnormal anatomy of the viscera and the muscular components of the levator ani and sphinc- ter muscles of the anorectum. Kascot Media Incor- porated (Chicago, Illinois, USA) rephotographed the Cibachromes and diagrams and arranged the layout in the original atlas.

The prints have been traced and colored. The sche- matic diagrams are color-coded: yellow for urinary structures, green for smooth muscle of the bowel, red for the levator complex, brown for external sphincter muscle, purple for genital organs, and blue for carti- lage. The red spots on the schematic diagrams serve to orient the sections of each specimen. The blue dots on some diagrams indicate the course of a fistula or bowel lumen.

“P-C” represents the pubococcygeal line, which is drawn on a true lateral radiograph between the center of the boomerang-shaped ossific center of the pubic bone through the junction of the cranial one-quar-

ter and the caudal three-quarters of the ischial ossific center, and a point just distal to the ossific center of the fifth sacral vertebra.

The 1984 classification of ARM is the first illustra- tion (Table 6.1, Fig. 6.1). Figure numbers 6.2–6.28 show female anomalies and 6.29–6.55 show male anomalies. Tables 6.2 and 6.3 list the malformations in females and males with corresponding Figure numbers.

Table 6.2 Female malformations with Figure number

Malformation Figures

Normal female pelvis 6.2–6.3

Normal female pelvis 6.4–6.5

Rectovesical fistula (with phallic urethra) 6.6–6.8 Rectovestibular/low cloaca (absent vagina) 6.9–6.12 Cloaca with short common chan-

nel (atrophic vagina) 6.13–6.15

Anorectal atresia 6.16–6.18

Anovestibular fistula 6.19–6.20

Anterior Anus (slightly oblique

transverse section) 6.21–6.22

Anocutaneous fistula 6.23–6.25

Perineal groove 6.26–6.28

Table 6.3 Male malformations with Figure number

Malformation Figures

Normal male pelvis 6.29–6.30

Rectoprostatic urethral fistula 6.31–6.33 Rectobulbar urethral fistula (paremedian) 6.34–6.35

Rectobulbar fistula 6.36–6.38

Rectobulbar fistula (A+B) 6.39–6.40

Anocutaneous fistula 6.41–6.43

Anocutaneous fistula 6.44–6.45

Anocutaneous fistula (bucket handle) 6.46–6.48

Anocutaneous fistula 6.49–6.51

Imperforate anal membrane 6.52–6.55

6  Photographic Album of Anorectal Malformations   and the Sphincter Muscles

F. Douglas Stephens

Table 6.1 Index of anomalies Index of Anomalies Anomaly: female

• Normal female 1F, 2F

• High anomaly 3F

• Intermediate anomalies 4–6F

• Low anomalies 7–10F

Anomaly: male

• Normal male 1M

• High anomaly 2M

• Intermediate anomalies 3–5M

• Low anomalies 6–10M

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Fig. 6.1

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Fig. 6.2 Normal female pelvis (1F.1)

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Fig. 6.3 Normal female pelvis (1F.2)

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Fig. 6.4 Normal female pelvis (2F.1)

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Fig. 6.5 Normal female pelvis (2F.2)

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Fig. 6.6 Rectovesical fistula (phallic urethra), female (3F.1)

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Fig. 6.7 Rectovesical fistula (phallic urethra) (3F.2)

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Fig. 6.8 Rectovesical fistula (phallic urethra) (3F.3)

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Fig. 6.9 Rectovestibular or low rectocloacal fistula (absent vagina) (4F.1)

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Fig. 6.10 Rectovestibular or low cloacal fistula (absent vagina) (4F.2)

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Fig. 6.11 Rectovestibular or low rectocloacal fistula (absent vagina) (4F.3)

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Fig. 6.12 Cloacal anomaly (absent vagina, same as Fig. 6.11) (4F.4)

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Fig. 6.13 Cloaca with short conduit atrophic microcaliber vagina (5F.1)

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Fig. 6.14 Cloaca with short conduit atrophic microcaliber vagina (5F.2)

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Fig. 6.15 Cloaca with short conduit atrophic microcaliber vagina (5F.3)

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Fig. 6.16 Anorectal atresia, female (also multiple intestinal atresias) (6F.1)

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Fig. 6.17 Anorectal atresia, female (6F.2)

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Fig. 6.18 Anorectal atresia, female (also multiple intestinal atresias) (6F.3)

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Fig. 6.19 Anovestibular fistula, female (7F.1)

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Fig. 6.20 Anovestibular fistula, female (7F.2)

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Fig. 6.21 Anterior anus, transverse section at anus slightly oblique (8F.1)

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Fig. 6.22 Anterior anus, transverse section at pectinate line (8F.2)

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Fig. 6.23 Anocutaneous fistula, female (septate vagina and agenesis of S2–5 and coccyx) (9F.1)

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Fig. 6.24 Anocutaneous fistula, female (9F.2)

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Fig. 6.25 Anocutaneous fistula, female (9F.3)

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Fig. 6.26 Perineal groove, female (10F.1)

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Fig. 6.27 Perineal groove, female (10F.2)

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Fig. 6.28 Perineal groove, female (10F.3)

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Fig. 6.29 Normal male pelvis (1M.1)

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Fig. 6.30 Normal male pelvis (1M.2)

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Fig. 6.31 Rectoprostatic urethral fistula, male (2M.1)

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Fig. 6.32 Rectoprostatic urinary fistula, male (2M.2)

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Fig. 6.33 Rectoprostatic urinary fistula, male (2M.3)

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Fig. 6.34 Rectobulbar fistula, paramedian section (3M.1)

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Fig. 6.35 Rectobulbar fistula (3M.2)

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Fig. 6.36 Rectobulbar fistula, male (4M.1)

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Fig. 6.37 Rectobulbar fistula, male (4M.2)

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Fig. 6.38 Rectobulbar fistula, male (4M.3)

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Fig. 6.39 Rectobulbar fistula (approximately section A) (5M.1)

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Fig. 6.40 Rectobulbar fistula (approximately section B) (5M.2)

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Fig. 6.41 Anocutaneous fistula, male (6M.1)

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Fig. 6.42 Anocutaneous fistula, male (6M.2)

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Fig. 6.43 Anocutaneous fistula, male (6M.3)

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Fig. 6.44 Anocutaneous fistula, male (7M.1)

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Fig. 6.45 Anocutaneous fistula, male (7M.2)

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Fig. 6.46 Bucket handle anocutaneous fistula, male (8M.1)

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Fig. 6.47 Bucket handle male anocutaneous fistula (8M.2)

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Fig. 6.48 Bucket handle anocutaneous fistula, male (8M.3)

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Fig. 6.49 Anocutaneous fistula, male (9M.1)

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Fig. 6.50 Anocutaneous fistula, male (9M.2)

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Fig. 6.51 Anocutaneous fistula, male (9M.3)

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Fig. 6.52 Imperforate anal membrane, male (10M.1)

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Fig. 6.53 Imperforate anal membrane, male (10M.2)

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Fig. 6.54 Imperforate anal membrane, male (10M.3)

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Fig. 6.55 Imperforate anal membrane, male (10M.4)

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